Flights from Ontario Airport ONT to Seattle Airport SEA

We've found the cheapest flights to Seattle

Returns from £56.56

One-way from £31.07

If it is your first time travelling to Seattle-Tacoma International then check out the airliners Jet Linx Aviation, Alaska Horizon, Alaska SkyWest, Air France, Korean Air, Japan Airlines, WestJet, Alaska Airlines, Qatar Airways, KLM, Virgin Atlantic 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
Virgin Atlantic444444406:5021:44VIEW FLIGHTS
Delta Connection444444409:5021:44VIEW FLIGHTS
KLM344444406:5021:44VIEW FLIGHTS
Qatar Airways333443406:0019:59VIEW FLIGHTS
Alaska Airlines422442406:0022:37VIEW FLIGHTS
WestJet124324306:5021:44VIEW FLIGHTS
Korean Air111111106:5009:55VIEW FLIGHTS
Japan Airlines111111106:0008:45VIEW FLIGHTS
Air France011111118:4221:44VIEW FLIGHTS
Alaska SkyWest011000010:1513:01VIEW FLIGHTS
Jet Linx Aviation100000006:0006:00VIEW FLIGHTS
Alaska Horizon0000010VIEW FLIGHTS

Virgin Atlantic offer the highest number of flights for this route with departures times between 06:50 and 21:44.

You can find the latest flight availability and prices from Virgin Atlantic at www.google.com/search?q=Virgin Atlantic. 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
Qatar AirwaysQR2136
Jet Linx AviationJL6389
07:00
AirlineFlight  No
WestJetWS8420
Virgin AtlanticVS5467
08:45
AirlineFlight  No
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2106
09:55
AirlineFlight  No
Korean AirKE3098
KLMKL7569
Delta ConnectionDL4008
10:29
AirlineFlight  No
Alaska AirlinesAS1255
11:20
AirlineFlight  No
Delta ConnectionDL3995
13:15
AirlineFlight  No
Qatar AirwaysQR2025
14:00
AirlineFlight  No
KLMKL7203
Delta ConnectionDL3999
14:18
AirlineFlight  No
KLMKL6907
Virgin AtlanticVS3853
16:54
AirlineFlight  No
Virgin AtlanticVS5381
17:00
AirlineFlight  No
Alaska AirlinesAS1119
17:40
AirlineFlight  No
Delta ConnectionDL4015
Virgin AtlanticVS4052
22:37
AirlineFlight  No
Alaska AirlinesAS1087
VIEW FLIGHTS
Tuesday
06:00
AirlineFlight  No
Qatar AirwaysQR2106
08:45
AirlineFlight  No
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2136
09:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6607
KLMKL7203
Delta ConnectionDL3842
Virgin AtlanticVS5381
10:15
AirlineFlight  No
Alaska SkyWestAS3452
11:20
AirlineFlight  No
Delta ConnectionDL3881
13:01
AirlineFlight  No
Qatar AirwaysQR2025
14:21
AirlineFlight  No
KLMKL7569
Virgin AtlanticVS3853
17:10
AirlineFlight  No
KLMKL6907
Delta ConnectionDL3946
Virgin AtlanticVS5467
18:42
AirlineFlight  No
WestJetWS7196
Air FranceAF8544
KLMKL6361
Virgin AtlanticVS2108
19:38
AirlineFlight  No
Alaska AirlinesAS1119
21:44
AirlineFlight  No
Delta ConnectionDL3728
VIEW FLIGHTS
Wednesday
06:00
AirlineFlight  No
Japan AirlinesJL6389
Qatar AirwaysQR2106
Qatar AirwaysQR2136
06:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6315
WestJetWS6607
KLMKL7203
08:45
AirlineFlight  No
Alaska AirlinesAS1091
09:50
AirlineFlight  No
Delta ConnectionDL3842
Virgin AtlanticVS5381
13:01
AirlineFlight  No
Qatar AirwaysQR2025
Alaska SkyWestAS3452
14:13
AirlineFlight  No
KLMKL6907
Delta ConnectionDL3946
Virgin AtlanticVS5467
14:21
AirlineFlight  No
KLMKL7569
Delta ConnectionDL3881
Virgin AtlanticVS3853
17:00
AirlineFlight  No
Alaska AirlinesAS1119
18:42
AirlineFlight  No
WestJetWS7196
Air FranceAF8544
Delta ConnectionDL3728
21:44
AirlineFlight  No
WestJetWS8058
KLMKL6361
Virgin AtlanticVS2108
VIEW FLIGHTS
Thursday
06:00
AirlineFlight  No
Qatar AirwaysQR2106
06:50
AirlineFlight  No
WestJetWS6607
08:45
AirlineFlight  No
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2136
09:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6315
KLMKL7203
Delta ConnectionDL3842
Virgin AtlanticVS5381
13:15
AirlineFlight  No
Alaska AirlinesAS1255
Qatar AirwaysQR2025
14:21
AirlineFlight  No
KLMKL7569
Delta ConnectionDL3881
Virgin AtlanticVS3853
17:10
AirlineFlight  No
KLMKL6907
Delta ConnectionDL3946
Virgin AtlanticVS5467
18:42
AirlineFlight  No
WestJetWS8058
KLMKL6361
Delta ConnectionDL3728
Virgin AtlanticVS2108
19:38
AirlineFlight  No
Alaska AirlinesAS1119
19:59
AirlineFlight  No
Qatar AirwaysQR8793
21:44
AirlineFlight  No
Air FranceAF8544
22:37
AirlineFlight  No
Alaska AirlinesAS1087
VIEW FLIGHTS
Friday
06:00
AirlineFlight  No
Japan AirlinesJL6389
Qatar AirwaysQR2106
Qatar AirwaysQR2136
06:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6315
WestJetWS7912
KLMKL7203
Virgin AtlanticVS5381
08:45
AirlineFlight  No
Alaska AirlinesAS1091
09:50
AirlineFlight  No
Delta ConnectionDL3842
10:29
AirlineFlight  No
Qatar AirwaysQR2025
11:20
AirlineFlight  No
KLMKL7569
Virgin AtlanticVS3853
13:15
AirlineFlight  No
Alaska AirlinesAS1255
14:13
AirlineFlight  No
KLMKL6907
Delta ConnectionDL3946
Virgin AtlanticVS5467
14:21
AirlineFlight  No
Delta ConnectionDL3881
16:41
AirlineFlight  No
Alaska AirlinesAS1113
18:42
AirlineFlight  No
Air FranceAF8544
KLMKL6361
Delta ConnectionDL3728
Virgin AtlanticVS2108
19:59
AirlineFlight  No
Qatar AirwaysQR8793
22:37
AirlineFlight  No
Alaska AirlinesAS1087
VIEW FLIGHTS
Saturday
06:00
AirlineFlight  No
Japan AirlinesJL6389
Qatar AirwaysQR2106
Qatar AirwaysQR2136
06:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6315
WestJetWS6341
WestJetWS7912
KLMKL7203
Delta ConnectionDL3842
Virgin AtlanticVS5381
08:45
AirlineFlight  No
Alaska AirlinesAS1091
10:15
AirlineFlight  No
Qatar AirwaysQR2025
Alaska HorizonAS2055
11:22
AirlineFlight  No
KLMKL7569
Delta ConnectionDL3881
Virgin AtlanticVS3853
14:13
AirlineFlight  No
KLMKL6907
Virgin AtlanticVS5467
17:10
AirlineFlight  No
Delta ConnectionDL3946
18:42
AirlineFlight  No
KLMKL6361
Delta ConnectionDL3728
Virgin AtlanticVS2108
19:38
AirlineFlight  No
Alaska AirlinesAS1119
21:44
AirlineFlight  No
WestJetWS7191
Air FranceAF8544
VIEW FLIGHTS
Sunday
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2106
Qatar AirwaysQR2136
06:50
AirlineFlight  No
Korean AirKE3098
WestJetWS6341
WestJetWS7912
KLMKL7203
Virgin AtlanticVS5381
09:50
AirlineFlight  No
Delta ConnectionDL3842
10:29
AirlineFlight  No
Qatar AirwaysQR2025
11:20
AirlineFlight  No
KLMKL7569
Virgin AtlanticVS3853
13:15
AirlineFlight  No
Alaska AirlinesAS1255
14:21
AirlineFlight  No
Delta ConnectionDL3881
16:43
AirlineFlight  No
Alaska AirlinesAS1113
17:10
AirlineFlight  No
KLMKL6907
Delta ConnectionDL3946
Virgin AtlanticVS5467
18:42
AirlineFlight  No
WestJetWS7191
Air FranceAF8544
KLMKL6361
Virgin AtlanticVS2108
19:59
AirlineFlight  No
Qatar AirwaysQR8793
21:44
AirlineFlight  No
Delta ConnectionDL3728
22:37
AirlineFlight  No
Alaska AirlinesAS1087
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
Los Angeles Van Nuys to Seattle02 Hours 35 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 £31.07 ($39 €36.12)
£31.07
$39 | €36.12
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 £56.56 ($71 €65.76)
£56.56
$71 | €65.76
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): Air France, Alaska Airlines, Alaska Horizon, Alaska SkyWest, Delta Connection, Japan Airlines, 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

Lounges at Ontario Airport

See all the airport lounges, locations and opening times available at Ontario Airport

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Eating and Drinking at Ontario Airport

See all bars and restaurants at Ontario Airport, including locations and if they are before or after check-in

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Duty Free Shopping at Ontario Airport

See all shops available at Ontario Airport - plan your duty free shopping in advance

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Ontario Tourist Attractions

Things to see and do in and around Ontario in Canada

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