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

We've found the cheapest flights to Seattle

Returns from £71.40

One-way from £34.21

You have a choice of 12 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
Delta Connection444444406:4517:50VIEW FLIGHTS
Alaska Airlines444443406:0020:11VIEW FLIGHTS
Qatar Airways442243406:0020:11VIEW FLIGHTS
Virgin Atlantic333333311:5217:50VIEW FLIGHTS
KLM333333306:4513:35VIEW FLIGHTS
WestJet222222206:4513:35VIEW FLIGHTS
SAS220222206:4511:52VIEW FLIGHTS
Korean Air111111106:4506:45VIEW FLIGHTS
Jet Linx Aviation111111106:0006:00VIEW FLIGHTS
Icelandair111111112:0416:03VIEW FLIGHTS
Volaris100111116:0416:04VIEW FLIGHTS
Frontier100111116:0416:04VIEW FLIGHTS

The greatest amount of direct flights offered from Ontario International to Seattle-Tacoma International United States are by Delta Connection with around 28 flights a week. The earliest flight is available at 06:45 and the latest flights at 17:50 with the most popular flight number being DL3816, DL3840, DL4031 and DL4070.

www.google.com/search?q=Delta Connection is available for information regarding booking flights etc with Delta Connection.

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
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
Qatar AirwaysQR2131
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
Qatar AirwaysQR2036
16:04
AirlineFlightNo
VolarisY42358
FrontierF92275
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
20:11
AirlineFlightNo
Alaska AirlinesAS592
Qatar AirwaysQR3355
VIEW FLIGHTS
Tuesday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
Qatar AirwaysQR2131
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
Qatar AirwaysQR2036
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
19:41
AirlineFlightNo
Alaska AirlinesAS592
Qatar AirwaysQR3355
VIEW FLIGHTS
Wednesday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:06
AirlineFlightNo
Alaska AirlinesAS654
Qatar AirwaysQR2131
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
19:41
AirlineFlightNo
Alaska AirlinesAS592
VIEW FLIGHTS
Thursday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
Qatar AirwaysQR2036
16:04
AirlineFlightNo
VolarisY42358
FrontierF92275
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
19:41
AirlineFlightNo
Alaska AirlinesAS592
Qatar AirwaysQR3355
VIEW FLIGHTS
Friday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
Qatar AirwaysQR2127
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
Qatar AirwaysQR2036
16:04
AirlineFlightNo
VolarisY42358
FrontierF92275
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
19:41
AirlineFlightNo
Alaska AirlinesAS592
Qatar AirwaysQR3355
VIEW FLIGHTS
Saturday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
Qatar AirwaysQR2127
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
IcelandairFI7707
Qatar AirwaysQR2036
16:04
AirlineFlightNo
VolarisY42358
FrontierF92275
17:45
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
VIEW FLIGHTS
Sunday
06:00
AirlineFlightNo
Alaska AirlinesAS607
Qatar AirwaysQR2107
Jet Linx AviationJL6389
06:45
AirlineFlightNo
Korean AirKE3098
SASSK3675
WestJetWS7523
KLMKL6721
Delta ConnectionDL3816
11:52
AirlineFlightNo
SASSK3875
KLMKL6941
Delta ConnectionDL4070
Virgin AtlanticVS5467
12:04
AirlineFlightNo
Alaska AirlinesAS654
IcelandairFI7707
Qatar AirwaysQR2127
13:35
AirlineFlightNo
WestJetWS7763
KLMKL5993
Delta ConnectionDL3840
Virgin AtlanticVS4052
16:03
AirlineFlightNo
Alaska AirlinesAS625
Qatar AirwaysQR2036
16:04
AirlineFlightNo
VolarisY42358
FrontierF92275
17:50
AirlineFlightNo
Delta ConnectionDL4031
Virgin AtlanticVS3853
19:41
AirlineFlightNo
Alaska AirlinesAS592
Qatar AirwaysQR3355
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 Seattle01,510 km (938 miles)2 Hours 35 Minutes
Las Vegas to Seattle01,395 km (867 miles)2 Hours 27 Minutes
Los Angeles to Seattle01,537 km (955 miles)2 Hours 37 Minutes
Palm Springs Municipal to Seattle01,590 km (988 miles)2 Hours 41 Minutes
San Diego to Seattle01,692 km (1,051 miles)2 Hours 48 Minutes
Santa Barbara Municipal to Seattle01,463 km (909 miles)2 Hours 32 Minutes
San Bernardino Norton Afb to Seattle01,544 km (960 miles)2 Hours 38 Minutes
Santa Ana John Wayne to Seattle01,576 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 £34.21 ($46 €39.55)
£34.21
$46 | €39.55
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 £71.40 ($96 €82.53)
£71.40
$96 | €82.53
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, Frontier, Icelandair, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, SAS, 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

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