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Cheap Flights from Seattle to Ontario $130.6

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Cheapest Flights from Seattle to Ontario (SEA to ONT)

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Interesting Facts About Flights from Seattle to Ontario (SEA to ONT)

Question : If having the most departure times is important to you, are there particular days that offer more options than others?
Answer : The day with the most departure times for this route is Wednesday with 39 options. Note that Friday offers the least number of options with 28 flight times.

Question : Do travelers from Seattle typically stay in Ontario for very long?
Answer : Over the next two months, travelers from SEA to ONT are planning on staying for eight days on average.

Question : In terms of overall promptness, how does SEA to ONT rank compared to the rest of the world?
Answer : The best way to measure a flight's promptness combines both on-time percentage and total delay minutes. SEA to ONT currently has 4.3 stars out of 5, earning the route one of the best ratings in the world. You can fly worry-free on this route.

Question : Which airline is struggling to get to Ontario on time?
Answer : Flights on United Airlines to Ontario from Seattle during the last month were delayed 100% of the time. If you should choose this airline, be sure to track the flight status to stay on top of the departure time.

Question : Do prices change more for this route than others?
Answer : Flight prices for SEA to ONT fluctuate much more than most. However, the sooner you book, the better price you tend to get.

Question : Interested in traveling in the next 30 days and want to get the lowest fare?
Answer : December 10th offers bookings (as of November 28th) that are 39% below the average price for this route. Saving on flight fares means you'll have more money in hand for the trip.

Question : Looking for the quickest flight from SEA to ONT?
Answer : The shortest direct flight is 2 hours and 25 minutes via Alaska Airlines. If you catch the 8:55 PM PST departure, you'll arrive at 11:20 PM PST.