Flights from Ontario Airport (ONT) to Seattle Airport Airport (SEA)

We've found the cheapest flights to Seattle

Returns from £82.54

One-way from £21.57

You have a choice of 11 airline companies when flying from Ontario International to Seattle-Tacoma International. The distance covered when flying from Ontario International to Seattle-Tacoma International United States is 1,540 Km (957 Miles) with the travel time being around 2 Hours 37 Minutes. ONT is the Airport code for Ontario International and SEA is for Seattle-Tacoma International United States.

Ticket prices are normally at a premium at weekends and can vary also with the time of day. It is normally worth booking flights well in advance if possible to get the best deal to Seattle-Tacoma International United States perhaps midweek or late evening. Flights to Seattle-Tacoma International United States normally go up in price the nearer the travel date, so it would be advisable to book as early as possible.

The table below shows the amount of daily flights in operation from Ontario International (ONT) to Seattle-Tacoma International (SEA).

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines443343406:0019:19VIEW FLIGHTS
Alaska Airlines443343406:0019:19VIEW FLIGHTS
Delta Connection332233306:3817:49VIEW FLIGHTS
Qatar Airways332232306:0019:19VIEW FLIGHTS
Virgin Atlantic222222206:3814:50VIEW FLIGHTS
WestJet110122206:3811:42VIEW FLIGHTS
Korean Air111111106:3806:38VIEW FLIGHTS
KLM111111106:3806:38VIEW FLIGHTS
Jet Linx Aviation111111106:0006:00VIEW FLIGHTS
Volaris110011114:2714:45VIEW FLIGHTS
Frontier110011114:2714:45VIEW FLIGHTS

The greatest amount of direct flights offered from Ontario International to Seattle-Tacoma International United States are by Hawaiian Airlines with around 25 flights a week. The earliest flight is available at 06:00 and the latest flights at 19:19 with the most popular flight number being HA6358, HA6361, HA6371 and HA6372.

hawaiianair.com is available for information regarding booking flights etc with Hawaiian Airlines.

Please see below the times of flights. These times and frequency may vary at different times of the year please visit the website for more information.

Flights Time In WeekDays
DayFlight TimesFlights
Monday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
11:42
AirlineFlightNo
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:45
AirlineFlightNo
VolarisY42380
FrontierF92275
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
17:49
AirlineFlightNo
Delta ConnectionDL3834
19:19
AirlineFlightNo
Alaska AirlinesAS594
Hawaiian AirlinesHA6358
Qatar AirwaysQR3345
VIEW FLIGHTS
Tuesday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
11:42
AirlineFlightNo
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:45
AirlineFlightNo
VolarisY42380
FrontierF92275
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
17:49
AirlineFlightNo
Delta ConnectionDL3834
19:19
AirlineFlightNo
Alaska AirlinesAS594
Hawaiian AirlinesHA6358
Qatar AirwaysQR3345
VIEW FLIGHTS
Wednesday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
14:50
AirlineFlightNo
Delta ConnectionDL4070
Virgin AtlanticVS5467
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
VIEW FLIGHTS
Thursday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
14:50
AirlineFlightNo
Delta ConnectionDL4070
Virgin AtlanticVS5467
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
VIEW FLIGHTS
Friday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
11:42
AirlineFlightNo
WestJetWS8396
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:45
AirlineFlightNo
VolarisY42380
FrontierF92275
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
17:49
AirlineFlightNo
Delta ConnectionDL3834
19:19
AirlineFlightNo
Alaska AirlinesAS594
Hawaiian AirlinesHA6358
Qatar AirwaysQR3345
VIEW FLIGHTS
Saturday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
11:00
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
11:42
AirlineFlightNo
WestJetWS8396
Delta ConnectionDL4070
Virgin AtlanticVS5467
15:50
AirlineFlightNo
VolarisY42380
FrontierF92275
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
17:49
AirlineFlightNo
Delta ConnectionDL3834
VIEW FLIGHTS
Sunday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Hawaiian AirlinesHA6361
Qatar AirwaysQR2182
Jet Linx AviationJL6389
06:38
AirlineFlightNo
Korean AirKE3098
WestJetWS6921
KLMKL5663
Delta ConnectionDL4042
Virgin AtlanticVS3853
10:44
AirlineFlightNo
Alaska AirlinesAS654
Hawaiian AirlinesHA6371
Qatar AirwaysQR2186
11:42
AirlineFlightNo
WestJetWS8396
Delta ConnectionDL4070
Virgin AtlanticVS5467
14:27
AirlineFlightNo
VolarisY42380
FrontierF92275
16:36
AirlineFlightNo
Alaska AirlinesAS665
Hawaiian AirlinesHA6372
17:49
AirlineFlightNo
Delta ConnectionDL3834
19:19
AirlineFlightNo
Alaska AirlinesAS594
Hawaiian AirlinesHA6358
Qatar AirwaysQR3345
VIEW FLIGHTS

You may instead fly from Ontario International and arrive at Seattle-Tacoma International by an alternative airport or airports. The summary of this is in the table below.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Burbank to Seattle 01,510 km (938 miles)2 Hours 35 Minutes
Las Vegas to Seattle 01,395 km (867 miles)2 Hours 27 Minutes
Los Angeles to Seattle 01,537 km (955 miles)2 Hours 37 Minutes
Palm Springs Municipal to Seattle 01,590 km (988 miles)2 Hours 41 Minutes
San Diego to Seattle 01,692 km (1,051 miles)2 Hours 48 Minutes
Santa Barbara Municipal to Seattle 01,463 km (909 miles)2 Hours 32 Minutes
Santa Ana John Wayne to Seattle 01,576 km (979 miles)2 Hours 40 Minutes

If you require a hire car at Seattle-Tacoma International be sure that you are in possession of a valid driving licence and also a current credit card.

Don't forget to book your hire car!

Search for a cheap rental car at SEA

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 £21.57 ($29 €24.72)
£21.57
$29 | €24.72
Check Latest Price
DIRECT Hawaiian 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 £82.54 ($111 €94.61)
£82.54
$111 | €94.61
Check Latest Price
1+ STOP(S)
What is the cheapest return flight from Ontario ONT to Seattle SEA?
The cheapest return flight from Ontario ONT to Seattle SEA is £73.62 ($99 €84.38)
£73.62
$99 | €84.38
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

Was your flight delayed or cancelled?

Was your flight delayed or cancelled?

You may be eligible to receive up to 600 EUR compensation per person in your party.

Claim Now!

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, Frontier, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Virgin Atlantic, Volaris, 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.

Other Airports Connecting To Seattle Airport in united states

Planning a trip? Save money on car hire by booking in advance

Search for a cheap rental car in Seattle

Useful Information about Seattle Airport

Lounges at Seattle Airport

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

View...
Eating and Drinking at Seattle Airport

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

View...
Duty Free Shopping at Seattle Airport

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

View...
Seattle Tourist Attractions

From wine tasting to a coffee & chocolate walking tour, just some of the things to see in Seattle..

View...