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Airports in Seattle
The cheapest time of year to fly to Seattle from Ontario is October. Most expensive is December
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday
in the evening
Ontario to Seattle flights are approximately 20% more expensive in the afternoon than in the evening
Alaska Airlines, Delta, and Frontier are the most popular carriers operating from Ontario to Seattle
Ontario - Seattle/Tacoma Intl
Fly from Ontario to Seattle/Tacoma Intl for the best Ontario - Seattle flight prices
59 days before
The cheapest time to buy a flight from Ontario to Seattle is approximately 59 days to departure
When traveling from Ontario to Seattle, the most popular airport to fly into is Seattle/Tacoma Intl Airport. The majority of travelers flying into Seattle/Tacoma Intl Airport from Ontario are departing from Ontario Airport. You may be looking for an airport near Ontario Airport to depart from when traveling to Seattle and luckily, there are options! You can try Los Angeles Airport which is located in Los Angeles, Santa Ana J. Wayne/Orange Cnty Airport which is located in Santa Ana, or Burbank Bob Hope Airport which is located in Burbank. When traveling from Ontario, it is helpful to have an alternative airport to fly into when you land in Seattle. The nearest airport to Seattle/Tacoma Intl Airport is Everett Paine Field Airport which is located in Everett. The cheapest route from Ontario to Seattle is SNA — SEA with an average price of $126 RT during the month of June.
|Los Angeles Airport (LAX) to Seattle/Tacoma Intl Airport (SEA)||$178|
|Ontario Airport (ONT) to Seattle/Tacoma Intl Airport (SEA)||$178|
|Santa Ana J. Wayne/Orange Cnty Airport (SNA) to Seattle/Tacoma Intl Airport (SEA)||$126|
|Burbank Bob Hope Airport (BUR) to Seattle/Tacoma Intl Airport (SEA)||$182|
|Santa Ana J. Wayne/Orange Cnty Airport (SNA) to Everett Paine Field Airport (PAE)||$218|
|Long Beach Municipal Airport (LGB) to Seattle/Tacoma Intl Airport (SEA)||$198|
|Juneyao Airlines||PriceFrom $14||Free Cancellation||Rating|
|JetBlue||PriceFrom $71||Free Cancellation||Rating|
The snacks could be better with the options.
1 / 10
|Frontier||PriceFrom $90||Free Cancellation||Rating|
Flight was delayed 2 hours and weren’t notified until we were at the gate. We found out later that the two flights before ours on our plane were delayed so they had plenty of time to tell us. Once we finally land we waited 45min for our checked bag- that cost $100 and it was 2:15 in the morning. Will never fly this airline again.
1 / 10
|Alaska Airlines||PriceFrom $92||Free Cancellation||Rating|
The plane was on time; arrived Seattle half an hour early. Cabin crews were well mannered and cordial. However, snacks served during flight could have been better considering flight duration
1 / 10
|Delta||PriceFrom $99||Free Cancellation||Rating|
One of the crew member weren’t to pleasant
1 / 10
|United Airlines||PriceFrom $116||Free Cancellation||Rating|
Couldn't make the flight because the Phoenix to Denver leg of our trip was cancelled by the airline.
1 / 10
|American Airlines||PriceFrom $178||Free Cancellation||Rating|
Overall, no major problems and all employees were great. The gate area was not large enough for the passengers, so people congregated in the walkway or sat in a different area, which is slightly burdensome because you can’t hear announcements elsewhere. But this is an airport not airline issue and nothing in the short term could address it.
1 / 10
Alaska Airlines flight deals from Ontario to Seattle start from $92 round-trip. Over the 5 Alaska Airlines flights for this route in a normal week, average airfare is usually $204 round-trip - but some users have found much cheaper deals with momondo.
$99 is the best Delta flight deal from Ontario to Seattle found on momondo over the last 72 hours. The average Delta ticket price found was closer to $247, however, with flight time and availability significantly affecting the price. Delta (7.8/10 from 392 user reviews) flies into Seattle from Ontario 21 times in an average week so prices can vary.
To ease the stress of booking flights, some of our airline partners flying from Ontario to Seattle/Tacoma Intl are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: Alaska Airlines, Delta, and Juneyao Airlines.
The straight-line distance from Ontario to Seattle/Tacoma Intl is 966.6 mi. By plane, this route typically takes 2h 35m.
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Seattle. momondo saves you time and could save you money on your trip.
Yes. momondo enables you to select and highlight flights to Seattle from Ontario with this policy.
momondo helps you find the best flight between Ontario and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
Price alerts on flights to Seattle from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.