All One Way Round Trip * All fares above were last found on: . Fares are one way or round trip as indicated above. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are based on historical data, are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.
Our Lowest Fare* All fares below were last found on: . Fares are round trip. Fares incl. all fuel surcharges, taxes & fees and our service fees. Displayed fares are based on historical data, are subject to change and cannot be guaranteed at the time of booking. See all booking terms and conditions.
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Search Cheap Flights from Ontario to SeattleBook your flights from Ontario to Seattle. Known for its vibrant art scene, scenic alleys, rich cultural heritage and plenty of travel worthy attractions make Seattle an exciting destination to visit. It is the largest city in the Pacific Northwest.To reach Seattle from Ontario, you should book airlines that include Alaska Airlines and United Airlines. The flights from Ontario to Seattle takes around two hours forty minutes that excludes the layover time. It covers the distance of 1811 miles. Listen to music to pass the time.
Ontario to Seattle Flight Route FactsWhat is the our cheapest return flight price from ONT to SEA?What is the fare range for flights from ONT to SEA?When does the earliest flight depart ONT?7:00AM - 8:00AMWhich is the busiest month to travel from Ontario to Seattle? NovemberWhich is the least-busy month to travel from ONT to SEA? AprilWhat is the travel distance between Ontario and Seattle?957 MilesWhat are the top airlines offering flights from ONT to SEA?Alaska Airlines, Japan Airlines, Southwest AirlinesHow many weekly flights operate between ONT and SEA?There are 45 weekly flights between ONT and SEA.How many daily flights fly between Ontario and Seattle?There are 6 daily flights between ONT and SEAWhich is the busiest day in terms of passengers flying from ONT to SEA?FridayWhat percentage of Ontario to Seattle travelers booked First or Business Class?1% of Seattle travelers booked First or Business Class.What percentage of Ontario to Seattle travelers traveled with their kids under 14?5% traveled with their kids under 14.What percentage of Ontario to Seattle travelers were millennials?29% of Seattle travelers were millenials.What percentage of Ontario to Seattle travelers were female?52% of Seattle travelers were female.What percentage of Ontario to Seattle travelers were over the age of 60?26% of Seattle travelers were over the age of 60.What was the average flight duration of flights from Ontario to Seattle?2.49 Hours
Ontario to Seattle Flight Route FactsWhat is the our cheapest return flight price from ONT to SEA?What is the fare range for flights from ONT to SEA?When does the earliest flight depart ONT?7:00AM - 8:00AMWhich is the busiest month to travel from Ontario to Seattle? NovemberWhich is the least-busy month to travel from ONT to SEA? AprilWhat is the travel distance between Ontario and Seattle?957 MilesWhat are the top airlines offering flights from ONT to SEA?Alaska Airlines, Japan Airlines, Southwest AirlinesHow many weekly flights operate between ONT and SEA?There are 45 weekly flights between ONT and SEA.How many daily flights fly between Ontario and Seattle?There are 6 daily flights between ONT and SEAWhich is the busiest day in terms of passengers flying from ONT to SEA?FridayWhat percentage of Ontario to Seattle travelers booked First or Business Class?1% of Seattle travelers booked First or Business Class.What percentage of Ontario to Seattle travelers traveled with their kids under 14?5% traveled with their kids under 14.What percentage of Ontario to Seattle travelers were millennials?29% of Seattle travelers were millenials.What percentage of Ontario to Seattle travelers were female?52% of Seattle travelers were female.What percentage of Ontario to Seattle travelers were over the age of 60?26% of Seattle travelers were over the age of 60.What was the average flight duration of flights from Ontario to Seattle?2.49 Hours
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Schedule Wide Open? Sneak-peek at what tickets cost month-to-month from ONT to SEAAvg. $423.9JanAvg. $494.05FebAvg. $487.14MarAvg. $415.66AprAvg. $462.5MayAvg. $675.72JunAvg. $879.83JulAvg. $768.24AugAvg. $537.07SepAvg. $352.57OctAvg. $466.75NovAvg. $535.79Dec
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