Flights from Ontario Airport ONT to Seattle Airport SEA

We've found the cheapest flights to Seattle

Returns from £79.20

One-way from £38.87

If it is your first time travelling to Seattle-Tacoma International then check out the airliners WestJet, Korean Air, Jet Linx Aviation, Icelandair, Qatar Airways, KLM, Virgin Atlantic, Alaska Airlines and Delta Connection. These airliners all offer direct flights that depart from Ontario International, so you will find flying to Seattle-Tacoma International is quite easy. When travelling from Ontario International you will cover about 957 miles before you reach Seattle-Tacoma International. This journey will take 2 Hours 37 Minutes.

The price of the flight is dependent on the time of the day you fly and the day of the week with weekends being normally a higher price. If you are on a tight budget then you should avoid flying at peak hours as the prices are more expensive. The cheapest flights are in the evenings and in mid week. We advise all our viewers to book well in advance. This way you will get the low priced tickets available.

The table below displays the numbers of daily flights from Ontario International (ONT) to Seattle-Tacoma International (SEA) and the relevant airlines that fly.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Delta Connection444444407:0017:55VIEW FLIGHTS
Alaska Airlines433443406:0019:59VIEW FLIGHTS
Virgin Atlantic333333311:5317:55VIEW FLIGHTS
KLM222222207:0011:53VIEW FLIGHTS
Qatar Airways322022206:0019:59VIEW FLIGHTS
WestJet111111114:2014:20VIEW FLIGHTS
Korean Air111111107:0007:00VIEW FLIGHTS
Jet Linx Aviation111111106:0006:00VIEW FLIGHTS
Icelandair111111110:3910:39VIEW FLIGHTS

Delta Connection offer the highest number of flights for this route with departures times between 07:00 and 17:55.

You can find the latest flight availability and prices from Delta Connection at www.google.com/search?q=Delta Connection. You can also book direct and get their latest discounts.

Flight times for the route are summarised in the table below. These time were correct at the time of writing, but please be aware that times may vary from time to time so please check their website for exact times and the dates you wish to fly.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
19:59
AirlineFlight  No
Alaska AirlinesAS594
Qatar AirwaysQR3345
VIEW FLIGHTS
Tuesday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
VIEW FLIGHTS
Wednesday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
VIEW FLIGHTS
Thursday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
19:59
AirlineFlight  No
Alaska AirlinesAS594
VIEW FLIGHTS
Friday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
19:59
AirlineFlight  No
Alaska AirlinesAS594
VIEW FLIGHTS
Saturday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
VIEW FLIGHTS
Sunday
06:00
AirlineFlight  No
Alaska AirlinesAS607
Qatar AirwaysQR2182
Jet Linx AviationJL6389
07:00
AirlineFlight  No
Korean AirKE3098
KLMKL5993
Delta ConnectionDL3690
10:39
AirlineFlight  No
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2186
11:53
AirlineFlight  No
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:20
AirlineFlight  No
WestJetWS6767
Delta ConnectionDL4170
Virgin AtlanticVS3853
15:26
AirlineFlight  No
Alaska AirlinesAS729
17:55
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
19:59
AirlineFlight  No
Alaska AirlinesAS594
VIEW FLIGHTS

Instead of flying from Ontario International you could consider a few airports that are close by. Please see that table below of alternative routes.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Burbank to Seattle02 Hours 35 Minutes
Las Vegas to Seattle02 Hours 27 Minutes
Los Angeles to Seattle02 Hours 37 Minutes
Palm Springs Municipal to Seattle02 Hours 41 Minutes
San Diego to Seattle02 Hours 48 Minutes
Santa Barbara Municipal to Seattle02 Hours 32 Minutes
San Bernardino Norton Afb to Seattle02 Hours 38 Minutes
Santa Ana John Wayne to Seattle02 Hours 40 Minutes

Whilst you will find a bureau de change at Seattle-Tacoma International, we recommend you change some money before you depart if you don’t have the local currency. The exchange rates within any airport are not very favorable, so exchanging money before hand is a good idea.

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Flight Price FAQ - Ontario (ONT) to Seattle (SEA)

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Ontario ONT to Seattle SEA?
The cheapest direct flight one way from Ontario ONT to Seattle SEA is £38.87 ($53 €44.95)
£38.87
$53 | €44.95
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Ontario ONT to Seattle SEA?
The cheapest direct return flight from Ontario ONT to Seattle SEA is £79.20 ($108 €91.60)
£79.20
$108 | €91.60
Check Latest Price
Important Note: Prices shown are taken from searches performed for flights operating during the current month. Please use the "Latest Price" buttons to get the most up to date airfares.

Compare Flight Prices from ONT to SEA

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Flight Info FAQ - Ontario (ONT) to Seattle (SEA)

Who flies from Ontario to Seattle?
The following airlines fly from Ontario (ONT) to Seattle (SEA): Alaska Airlines, Delta Connection, Icelandair, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Virgin Atlantic, WestJet.
How far is the flight from Ontario to Seattle?
The flight from Ontario to Seattle is 1,540KM or 957 miles.
How long does the flight from Ontario to Seattle to take?
The flight from Ontario to Seattle takes 2 Hours 37 Minutes.

Alternative Airports in United States with Connections from Ontario Airport

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Useful Information about Ontario Airport

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