Seattle to ontario ca

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The Boeing 737-800 Passenger/BBJ2 (winglets) is the aircraft model that flies most regularly on the Seattle to Ontario flight route. Which airline alliances offer flights from Seattle to Ontario? oneworld, and SkyTeam are the airline alliances operating flights between Seattle and Ontario, with SkyTeam being the most commonly used for this route. Named for the Canadian hometown of two 19th century engineers who first developed the area for urban living, Ontario is known as the "gateway to southern California." Resting 35 miles east of downtown Los Angeles, popular attractions like Disneyland and the mountain retreats of Lake Arrowhead and Big Bear are all within reach of Ontario. In the city, walk … Nonstop 2h 47m Frontier. Deal found 3/22 $94. Pick Dates. One of the most popular airlines traveling from Seattle to Ontario is Frontier. Flights on this route from Frontier typically cost $220.07 RT, a price that is 31% more expensive than the average Seattle to Ontario flight. The cheapest flight found was $79 RT. 01:10PM PDT San Diego Intl - SAN. 04:07PM PDT Seattle-Tacoma Intl - SEA. B739. 2h 57m. Join FlightAware View more flight history Purchase entire flight history for ASA1157. Get Alerts.The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $182 round trip and $99 one way. Prices and availability subject to change. Additional terms may apply. Fri, Feb 16 - Sun, Feb 18. drive for about 2.5 hours. 5:01 pm Santa Barbara. stay for about 4 hours. and leave at 9:01 pm. drive for about 2.5 hours. 11:31 pm arrive in Ontario. day 3 driving ≈ 9 hours. find more stops. Recommended videos. The cheapest return flight ticket from Seattle to Ontario found by KAYAK users in the last 72 hours was for $78 on Frontier, followed by Delta ($177). One-way flight deals have also been found from as low as $54 on Frontier and from $89 on Alaska Airlines. Ontario. $1,391. Flights from Kingston, Ontario to Seattle. $656. Flights from London, Ontario to Seattle. $505. Flights from Ottawa to Seattle. Flights from Toronto Pearson Intl Airport to Seattle. $311.

The cheapest flights to Los Angeles - Ontario Intl. found within the past 7 days were $164 round trip and one way. Prices and availability subject to change. Additional terms may apply. Wed, Feb 14 - Sat, Feb 17. SEA. Seattle. ONT. Ontario. $164.Cheap flights from Seattle to Ontario (SEA - ONT) from $34. Round-trip One-way Multi-city. From? To? Thu 3/28. Thu 4/4. 1 adult. Economy. Find Your Flight. The best prices from … This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Ontario departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel. The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $182 round trip and $99 one way. Prices and availability subject to change. Additional terms may apply. Fri, Feb 16 - Sun, Feb 18.Airfares from $69 One Way, $137 Round Trip from Seattle to Ontario. Prices starting at $137 for return flights and $69 for one-way flights to Ontario were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 1 - Tue, May 7.1:00 am 01:00 in Seattle, WA, USA is 4:00 pm 16:00 in Manila, Philippines and is 6:00 pm 18:00 in Sydney, Australia and is 4:00 am 04:00 in Ottawa, Canada and is 1:00 am 01:00 in Ontario, CA, USA. Seattle to Manila call time Best time for a conference call or a meeting is between 5:30am-7:30am in Seattle which corresponds to 8:30pm-10:30pm in ...1 stop 9h 43m Frontier. Deal found 2/22 $115. Pick Dates. One of the most popular airlines traveling from Ontario to Seattle is Frontier. Flights on this route from Frontier typically cost $218.89 RT, a price that is 45% more expensive than the average Ontario to Seattle flight. The cheapest flight found was $93 RT.

What companies run services between Ontario, CA, USA and Seattle, WA, USA? Alaska Airlines, Inc., Frontier Airlines and three other airlines fly from Ontario to Seattle hourly. Alternatively, you can take a bus from Ontario to Seattle via Pomona Transit Center, Patsaouras Plaza Busway Station W, Los Angeles Union Station, and Sacramento Bus ...️ Use the interactive calendar available on Expedia to see the cheapest Alaska Airlines (Seattle SEA - Los Angeles ONT) ticket prices during the weeks surrounding your travel dates. Compare flight prices for similar timeframes and adjust departure and return dates to get the cheapest fare possible. The lowest-priced days are highlighted in green. Ontario. $1,391. Flights from Kingston, Ontario to Seattle. $699. Flights from London, Ontario to Seattle. $507. Flights from Ottawa to Seattle. Flights from Toronto Pearson Intl Airport to Seattle. $323. Nonstop 2h 47m Frontier. Deal found 3/22 $94. Pick Dates. One of the most popular airlines traveling from Seattle to Ontario is Frontier. Flights on this route from Frontier typically cost $220.07 RT, a price that is 31% more expensive than the average Seattle to Ontario flight. The cheapest flight found was $79 RT. Ontario, CA (ONT) Ontario International Airport . Things to know before you go . Terminal Location. Terminal 2. Recommended Arrival Time. 2 hours prior to departure. Ticket Counter Hours. 8:00pm - 11:30pm. TSA Security Checkpoint. 3:45am - 12:50am. Baggage Service Office. Central Baggage Services: 1-866-538-5438. Unaccompanied Minors . Drop-off …For a quicker trip, book one of these direct flights from California to Seattle. Users seeking other options on flights from California to Seattle should update the search form at the top of the page. Thu 5/16 10:39 am ONT - SEA. Nonstop 2h 53m Frontier. Sun 5/19 2:25 pm SEA - ONT. Nonstop 2h 44m Frontier.

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Your trip begins in Ontario, California. It ends in Seattle, Washington. If you're planning a road trip, you might be interested in seeing the total driving distance from Ontario, CA to Seattle, WA. You can also calculate the cost to drive from Ontario, CA to Seattle, WA based on current local gas prices and an estimate of your car's best gas ... Tue, Jun 4 YYZ – SEA with Flair Airlines. 1 stop. from C$478. Toronto.C$497 per passenger.Departing Wed, Jun 12, returning Sat, Jun 15.Round-trip flight with Spirit Airlines and Flair Airlines.Outbound indirect flight with Spirit Airlines, departing from Seattle / Tacoma International on Wed, Jun 12, arriving in Toronto Pearson International ...Fly Air Canada, voted "Best Airline in North America" by Skytrax and Global Traveler Magazine. Book your Toronto to Seattle flight today. Skip to content-Skip to footer. language Canada-English keyboard_arrow_down. Travel with Air Canada from Toronto to Seattle (YYZ - SEA) from CAD 359* Book with cash. arrow_drop_down. Round-trip. …Book your air tickets with us and, at CheapOair you can also choose from an extensive list of airlines flying on the route. Also, if you have to take flight immediately due to any emergency, you should explore last minute flight deals from Seattle to Redding. Book your plane tickets now! Try to book your flight at least 21 days in advance in ...

One Way Flights vs Round Trip Flights from Seattle to Ontario, California . We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to Ontario, California. However, booking a round trip flight ...Washington. United States of America. Flights. Expedia.com. $39 Cheap Flights from Ontario (ONT) to Seattle (SEA) Bundle Your Flight + Hotel & Save! Roundtrip. One … Please select from the following options. Calculate Postcard price. View Flat Rate Envelopes. View Flat Rate Boxes. Calculate price based on Shape and Size. In-Flight information. The average flying time for a direct flight from Seattle, WA to Ontario is 2 hours 30 minutes. Most direct flights leave around 8:45 PDT. Alaska Airlines flight #537 is today's earliest flight from Seattle, WA to Ontario (8:45 PDT, Boeing 737-900) Alaska Airlines flight #924 is today's latest flight from Seattle, WA to ... The cheapest return flight ticket from Seattle to Ontario found by KAYAK users in the last 72 hours was for $78 on Frontier, followed by Delta ($177). One-way flight deals have … 08/10/24 - 08/14/24. from. $ 274*. Viewed: 1 day ago. From. Ontario (ONT) To. Seattle (SEA) Roundtrip. 6 days ago · Featured daily fares for flights from Seattle (SEA) to Ontario (ONT) Find United Airlines cheap flights from Seattle to Ontario. Enjoy a Seattle to Ontario modern flight experience in premium cabins with Wi-Fi. Driving distance from Seattle, WA to Ontario, CA is 1173 miles (1887 km). How far is it from Seattle, WA to Ontario, CA? It's a 19 hours 19 minutes drive by car. Flight distance is approximately 967 miles (1556 km) and flight time from Seattle, WA to Ontario, CA is 01 hours 56 minutes.Don't forget to check out our "Gas cost calculator" option.Fly to Ontario with United Airlines from over 200 airports within the United States and an additional 100 airports internationally. Ontario’s top attractions. Visit the Ontario Museum of History and Art for an overview of the region. Tour the grand Graber Olive House, home to the oldest operating olive packer in the U.S.

Best Flights from Seattle to Ontario Today. Take a look at the list of non stop flights and flights with layovers from Seattle to Ontario with the lowest price of $79. The fastest direct flight takes 2h 38m and the fastest connecting – 3h 54m. Price. Departure.

The best city between Ontario, CA and Seattle, WA to meet is Project City, California. The closest zip code to the midpoint is 96079. The exact latitude and longitude coordinates are 40° 40' 54" N and 122° 20' 51" W. The closest major city that is roughly halfway is Sacramento, CA. The total driving distance from Ontario, CA to Seattle, WA is ...Find local businesses, view maps and get driving directions in Google Maps.Find the best deals on flights from Seattle to Ontario, CA with Cheapflights.com. Compare prices, dates, airlines and booking tips for this popular route.There are 5 non-stop flights from Ontario, California to Seattle, Washington. Alaska Airlines. American Airlines. Delta Air Lines. United Airlines. See the full list of airline routes and airports to book your trip. You may need to drive to a nearby airport to get a direct flight. Use the form below to search for cheap airline tickets.On average, a flight to Ontario costs $139. The cheapest price found on KAYAK in the last 2 weeks cost $19 and departed from Phoenix Sky Harbor Intl Airport. The most popular routes on KAYAK are San Francisco to Ontario which costs $115 on average, and Seattle to Ontario, which costs $221 on average. See prices from:This data is provided only for informative purposes. www.ontario-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status. Origin Arrival Flight Airline Terminal. Status. Seattle (SEA) 09:33 am AS3452. Alaska Airlines. 2. Terminal 2. Scheduled - On-time [+] … Ontario. $1,391. Flights from Kingston, Ontario to Seattle. $656. Flights from London, Ontario to Seattle. $505. Flights from Ottawa to Seattle. Flights from Toronto Pearson Intl Airport to Seattle. $311. Ontario Intl (ONT) - Ontario, CA Arrivals Departures Airport Delay Weather Parking Limos. ONT Arrivals This website stores cookies on your computer. These cookies are used to improve your website and provide more personalised services to you, both on this website and through other media. To find out more about the cookies we use, see our ...

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Popular distances from Ontario (ONT) Distance from Ontario to Seattle (Ontario International Airport – Seattle–Tacoma International Airport) is 956 miles / 1539 kilometers / 831 nautical miles. See also a map, estimated flight duration, carbon dioxide emissions and the time difference between Ontario and Seattle.Looking for cheap flights to Ontario ? Reserve one-way or return flights from Seattle (SEA) to Ontario (QLA) starting at CA $83. Book now!Compare flight deals to Seattle from Ontario from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flight tickets to Seattle start from $33 one-way. Flex your dates to find the best ONT–SEA ticket prices. If you are flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day …Prices were available within the past 7 days and start at $24 for one-way flights and $43 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Looking for cheap flights to Ontario? Book now to earn airline miles in addition to our OneKeyCash rewards and receive alerts if flight prices ... Connecting flights between Seattle, WA and Ontario, CA. Here is a list of connecting flights from Seattle, Washington to Ontario, California. This can help you find a one-stop flight with the shortest layover time. We found a total of 12 flights to Ontario, CA with one connection: Airline routes; Delta Air Lines SEA to SLC to LGB Your trip begins in Ontario, California. It ends in Seattle, Washington. If you're planning a road trip, you might be interested in seeing the total driving distance from Ontario, CA to Seattle, WA. You can also calculate the cost to drive from Ontario, CA to Seattle, WA based on current local gas prices and an estimate of your car's best gas ...9:00 am leave from Saint Regis. drive for about 4 hours. 12:53 pm Bozeman. stay for about 1 hour. and leave at 1:53 pm. drive for about 6.5 hours. 8:13 pm Theodore Roosevelt National Park. stay overnight and leave the next day around 11:00 am. day 2 driving ≈ 10 hours.Direct. Mon, May 20 SEA – ONT with Frontier Airlines. Direct. from $68. Seattle.$84 per passenger.Departing Sat, May 18, returning Sun, Jun 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Ontario International on Sat, May 18, arriving in Seattle / Tacoma International.Inbound direct ...SEA - ONT. Find cheap flights from Seattle to Ontario from C$ 67. Return. 1 adult. Economy. 0 bags. Nonstop flights only. Thu 9/5. Thu 16/5. Search hundreds of travel …Find and book flights from Seattle to Ontario (Los Angeles - Ontario Intl.) starting at $39 one-way and $78 round trip. Compare prices, dates, airlines and deals on Expedia.com.Direct (non-stop) flights from Ontario to Seattle All flight schedules from Ontario International Airport , California , USA to Seattle Tacoma International , Washington , USA. This route is operated by 3 airline(s), and the flight time is 3 hours and 01 minute. The distance is 962 miles. ONT Ontario International Airport. Ontario , CA , USA SEA …Book your air tickets with us and, at CheapOair you can also choose from an extensive list of airlines flying on the route. Also, if you have to take flight immediately due to any emergency, you should explore last minute flight deals from Seattle to Redding. Book your plane tickets now! Try to book your flight at least 21 days in advance in ... ….

1 day ago · Searching for cheap flights from Seattle to Ontario? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today. Direct (non-stop) flights from Ontario to Seattle All flight schedules from Ontario International Airport , California , USA to Seattle Tacoma International , Washington , USA. This route is operated by 3 airline(s), and the flight time is 3 hours and 01 minute. The distance is 962 miles. ONT Ontario International Airport. Ontario , CA , USA SEA …Top tips for finding cheap flights to California. Looking for a cheap flight? 25% of our users found tickets from Seattle to the following destinations at these prices or less: Los Angeles $133 one-way - $261 round-trip; San Francisco $120 one-way - $246 round-trip.The total driving distance from Ontario, CA to Seattle, WA is 1,170 miles or 1 883 kilometers. Your trip begins in Ontario, California. It ends in Seattle, Washington. If you are planning a road trip, you might also want to calculate the total driving time from Ontario, CA to Seattle, WA so you can see when you'll arrive at your destination.This data is provided only for informative purposes. www.ontario-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status. Origin Arrival Flight Airline Terminal. Status. Seattle (SEA) 09:33 am AS3452. Alaska Airlines. 2. Terminal 2. Scheduled - On-time [+] … The two airlines most popular with KAYAK users for flights from Seattle to Toronto are Alaska Airlines and Delta. With an average price for the route of $346 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $591 and an overall rating of 8.0. This is a multi leg flight of Delta Air Lines DL2130. Next leg is Ontario to Seattle. Flight DL2130 is code-shared by 3 airlines using the flight numbers KL6604, VS5470, WS7886. Other flights departing from Seattle SEA: DL528, DL2610, DL4124, AS67. Other flights arriving at Ontario ONT: CI24, DL467, UA5444, AA2968.Find the best deals for flights from Seattle to Ontario, CA starting at $68. Compare airlines, dates, prices, and weather for your travel plans.Cheap Flights from Portland to Ontario (PDX-ONT) Prices were available within the past 7 days and start at $34 for one-way flights and $53 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Wed, Sep 4 - Tue, Sep 10. PDX. Portland . ONT. Ontario. $53 Roundtrip, …How far is Ontario, CA, from Seattle, WA? The distance between Seattle (Seattle–Tacoma International Airport) and Ontario (Ontario International Airport) is 956 miles / 1539 kilometers / 831 nautical miles. The driving distance from Seattle (SEA) to Ontario (ONT) is 1160 miles / 1867 kilometers, and travel time by car is about 21 hours 56 ... Seattle to ontario ca, The trip from Seattle to Ontario can be as quick as 11 hours 5 minutes and as cost-effective as $95.99. The first bus of the day departs at 8:45 am and the last bus departs at 9:15 am . Greyhound runs daily buses Seattle to Ontario between Seattle and Ontario. Traveling with Greyhound guarantees free Wifi, access to power sockets, and a ..., Book your air tickets with us and, at CheapOair you can also choose from an extensive list of airlines flying on the route. Also, if you have to take flight immediately due to any emergency, you should explore last minute flight deals from Seattle to Redding. Book your plane tickets now! Try to book your flight at least 21 days in advance in ..., Book flights from Seattle/Tacoma to Ontario/LA with Southwest Airlines ®. It’s easy to find the Seattle-Tacoma International Airport to Ontario International Airport flight to make your booking and travel a breeze. Whether you’re traveling for business or pleasure, solo or with the whole family, you’ll enjoy flying Southwest ®., Find cheap flights from Seattle (SEA) to Ontario (ONT) with United Airlines. Compare fares, dates, and cabin classes for round trips or one-way flights., Find cheap fares from Las Vegas, NV (LAS) to Ontario/LA, CA (ONT) with Frontier Airlines. Enjoy unlimited savings all year with the Discount Den℠!, Flights between Seattle, WA and Ontario, CA starting at $55. Choose between Alaska Airlines, Frontier Airlines, or Spirit Airlines to find the best price. Search, compare, and book flights, trains, and buses. , Flights between Seattle, WA and Ontario, CA starting at $55. Choose between Alaska Airlines, Frontier Airlines, or Spirit Airlines to find the best price. Search, compare, and book flights, trains, and buses. , Find and book flights from Seattle (SEA) to Ontario (ONT) starting at CA $93 for one-way and CA $106 for round trip. Compare prices, dates, airlines and earn rewards with Expedia.ca. , 1 day ago · Searching for cheap flights from Seattle to Ontario? Enjoy comfort, premium cabin legroom and free movies with Alaska Airlines. Find the lowest fares today. , Flights from Seattle, WA to Ontario, CA cover the 964 miles (1555 km) long route taking on average 2 h 42 min with our travel partners like Alaska Airlines or United. …, What companies run services between Ontario, CA, USA and Seattle, WA, USA? Alaska Airlines, Inc., Frontier Airlines and three other airlines fly from Ontario to Seattle hourly. Alternatively, you can take a bus from Ontario to Seattle via Pomona Transit Center, Patsaouras Plaza Busway Station W, Los Angeles Union Station, and Sacramento Bus ..., The Gateway to Southern California. Just east of Los Angeles, head to Ontario to experience a little bit of that hustle and bustle of LA with a laid-back vibe. With a vibrant music scene, a huge art scene and a wide variety of foreign restaurants, Ontario is a great place to visit. Fly more and save even more when you travel to Ontario/LA, CA ..., Quick Answer: The cost to move from Ontario, CA to Seattle, WA averages from $914 to $7,113 depending on how much you're moving, your move date, and whether you hire a company or do the move yourself. Hiring a full-service Ontario moving company will be on the more expensive side, while renting a truck or moving container is usually …, 9:00 am leave from Saint Regis. drive for about 4 hours. 12:53 pm Bozeman. stay for about 1 hour. and leave at 1:53 pm. drive for about 6.5 hours. 8:13 pm Theodore Roosevelt National Park. stay overnight and leave the next day around 11:00 am. day 2 driving ≈ 10 hours., Fly from Seattle to Ontario on Sun Country Air from $125... Search for Ontario flights on KAYAK now to find the best deal., Ontario. $1,391. Flights from Kingston, Ontario to Seattle. $699. Flights from London, Ontario to Seattle. $507. Flights from Ottawa to Seattle. Flights from Toronto Pearson Intl Airport to Seattle. $323., Flight Arrivals information at Ontario Airport (ONT): Status and Estimated times - Today ... Seattle (SEA) 09:28 pm AS1088. QR2105. Alaska Airlines. Qatar Airways . 2. Terminal 2. Landed - On-time [+] Salt Lake City (SLC) 09:37 pm DL1628. AM3463. KL6678. VS3583. Delta Air Lines. Aeromexico . KLM Royal Dutch Airlines . Virgin Atlantic . 2. Terminal 2. …, Find cheap flights from Seattle to Ontario from C$ 166. Return. 1 adult. Economy. 0 bags. sáb. 18/5. sáb. 25/5. Search. Nonstop flights only. Search hundreds of travel sites at …, 08/10/24 - 08/14/24. from. $ 274*. Viewed: 1 day ago. From. Ontario (ONT) To. Seattle (SEA) Roundtrip. , Direct (non-stop) flights from Ontario to Seattle All flight schedules from Ontario International Airport , California , USA to Seattle Tacoma International , Washington , USA. This route is operated by 3 airline(s), and the flight time is 3 hours and 01 minute. The distance is 962 miles. ONT Ontario International Airport. Ontario , CA , USA SEA …, There are many international destinations you can fly to non-stop from Ontario. The most popular international destinations from KAYAK users are Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Guadalajara at $202, while the most expensive was San Salvador, at $242., Fly Air Canada, voted "Best Airline in North America" by Skytrax and Global Traveler Magazine. Book your Toronto to Seattle flight today. Skip to content-Skip to footer. language Canada-English keyboard_arrow_down. Travel with Air Canada from Toronto to Seattle (YYZ - SEA) from CAD 359* Book with cash. arrow_drop_down. Round-trip. …, Currently, October is the cheapest month in which you can book a flight to Ontario (average of $237). Flying to Ontario in June will prove the most costly (average of $346). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down., Cheap Flights from Ontario to Seattle (ONT-SEA) Prices were available within the past 7 days and start at $39 for one-way flights and $78 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Ontario to Seattle with no change fee on selected flights. , Quick Answer: The cost to move from Ontario, CA to Seattle, WA averages from $914 to $7,113 depending on how much you're moving, your move date, and whether you hire a company or do the move yourself. Hiring a full-service Ontario moving company will be on the more expensive side, while renting a truck or moving container is usually …, Best Flights from Seattle to Ontario Today. Take a look at the list of non stop flights and flights with layovers from Seattle to Ontario with the lowest price of $79. The fastest direct flight takes 2h 38m and the fastest connecting – 3h 54m. Price. Departure., There are many international destinations you can fly to non-stop from Ontario. The most popular international destinations from KAYAK users are Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Guadalajara at $202, while the most expensive was San Salvador, at $242., Flights from Seattle to Ontario. Use Google Flights to plan your next trip and find cheap one way or round trip flights from Seattle to Ontario., Airfares from $69 One Way, $137 Round Trip from Seattle to Ontario. Prices starting at $137 for return flights and $69 for one-way flights to Ontario were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply. Wed, May 1 - Tue, May 7., For a quicker trip, book one of these direct flights from California to Seattle. Users seeking other options on flights from California to Seattle should update the search form at the top of the page. Thu 5/16 10:39 am ONT - SEA. Nonstop 2h 53m Frontier. Sun 5/19 2:25 pm SEA - ONT. Nonstop 2h 44m Frontier., Cheap flights from Seattle (SEA) to Toronto (YYZ) Prices were available within the past 7 days and start at CA $300 for one-way flights and CA $623 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Seattle to Toronto with no change fee on selected ..., On average, a flight to Ontario costs $139. The cheapest price found on KAYAK in the last 2 weeks cost $19 and departed from Phoenix Sky Harbor Intl Airport. The most popular routes on KAYAK are San Francisco to Ontario which costs $115 on average, and Seattle to Ontario, which costs $221 on average. See prices from:, There are many international destinations you can fly to non-stop from Ontario. The most popular international destinations from KAYAK users are Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Guadalajara at $202, while the most expensive was San Salvador, at $242.