27% OFF Cheap Flights from Ontario to Seattle (SEA)

Expected price increase 20%
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Average price per month


  • Low Season: February
  • High Season: August
  • Prices for this route are volatile and fluctuate from month to month.
  • The cheapest flights are usually bought in February, March and May.
  • High season months are July, September and August. However, it's not the rule and you should always search current flight deals.
  • For example, the flight from Ontario to Seattle is currently 27% cheaper than average.

Price increase as travel date approaches


  • Flight prices for this route increase by 49% if you book last minute. Hover on the graph above to see for yourself!.
  • To grab the lowest price possible, you should buy your flight around 29 days before departure!
  • Consider booking at least 22 days before departure to increase your chances of getting a low price.
  • Generally, it's safe to book between 90 and 60 days in advance.

Ontario to Seattle Flight Information

Flights Depart FromOntario (ONT)
Flights Arriving ToSeattle (SEA)
Distance1540.09 km
Current Discount27 %
Average Price $189.43
Good Deal $136.54
Cheapest AirlinesDelta Air Lines, JetBlue, United Airlines, American Airlines, Alaska Airlines
Popular AirlinesJetBlue, Alaska Airlines, Delta Air Lines, American Airlines, United Airlines, Spirit Airlines
Flight Duration02 hours 13 minutes
Flights Depart From
Ontario (ONT)
Flights Arrive In
Seattle (SEA)
Distance
1540.09 km
Flight Duration
02 hours 13 minutes
Current Discount
27 %
Average Price
$189.43
Good Deal
$136.54
Cheapest Airlines
Delta Air Lines, JetBlue, United Airlines, American Airlines, Alaska Airlines
Popular Airlines
JetBlue, Alaska Airlines, Delta Air Lines, American Airlines, United Airlines, Spirit Airlines

Most Reliable Airlines flying to Seattle

Airline Overall Rating On time arrival Check-in & Boarding Cleanliness Customer Service Food & Beverage Entertainment Legroom Seat Comfort
JetBlue JetBlue 4.2 4.0 4.5 4.5 4.0 4.0 4.0 4.5 4.0
Alaska Airlines Alaska Airlines 4.1 4.5 4.5 4.5 4.5 3.5 3.5 4.0 4.0
Delta Air Lines Delta Air Lines 3.8 4.5 4.0 4.0 4.0 3.5 4.0 3.5 3.5
American Airlines American Airlines 3.3 4.0 3.5 3.5 3.5 3.0 3.0 3.5 3.0
United Airlines United Airlines 3.3 4.0 3.5 3.5 3.5 3.0 3.0 3.0 3.0
Spirit Airlines Spirit Airlines 2.8 4.5 3.0 3.5 3.0 2.0 1.5 2.5 2.5
Overall Rating
4.0
On time arrival
4.0
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.0
Food & Beverage
4.0
Entertainment
4.0
Legroom
4.5
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.5
Cleanliness
4.5
Customer Service
4.5
Food & Beverage
3.5
Entertainment
3.5
Legroom
4.0
Seat Comfort
4.0
Overall Rating
4.0
On time arrival
4.5
Check-in & Boarding
4.0
Cleanliness
4.0
Customer Service
4.0
Food & Beverage
3.5
Entertainment
4.0
Legroom
3.5
Seat Comfort
3.5
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.5
Seat Comfort
3.0
Overall Rating
3.5
On time arrival
4.0
Check-in & Boarding
3.5
Cleanliness
3.5
Customer Service
3.5
Food & Beverage
3.0
Entertainment
3.0
Legroom
3.0
Seat Comfort
3.0
Overall Rating
3.0
On time arrival
4.5
Check-in & Boarding
3.0
Cleanliness
3.5
Customer Service
3.0
Food & Beverage
2.0
Entertainment
1.5
Legroom
2.5
Seat Comfort
2.5

Good to know:


  • Seattle-Tacoma International is the major airport in Seattle and surrounding area.

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How to get the cheapest flight to Seattle?

Currently there is a 27% discount on flights to Seattle. This price won't stay too long and you should consider buying now.

Flight prices for this route are expected to go up by 20%.

Search and compare flight options now!.

Awesome Deals

notifications_active In the past few days the following airlines offered the lowest prices from Ontario to Seattle: Delta Air Lines, JetBlue, United Airlines, American Airlines and Alaska Airlines..

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