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

We've found the cheapest flights to Seattle

Returns from £98.91

One-way from £49.06

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
Delta Connection444444409:5520:33VIEW FLIGHTS
Virgin Atlantic333333307:0016:55VIEW FLIGHTS
Qatar Airways333333306:0013:15VIEW FLIGHTS
KLM333333307:0016:55VIEW FLIGHTS
Alaska Airlines422442308:4522:37VIEW FLIGHTS
WestJet111111107:0009:55VIEW FLIGHTS
Korean Air111111107:0009:55VIEW FLIGHTS
Jet Linx Aviation111111106:0006:00VIEW FLIGHTS
Japan Airlines111111008:4508:45VIEW FLIGHTS
Alaska SkyWest011010013:0122:00VIEW FLIGHTS
Alaska Horizon000001119:2119:21VIEW 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 09:55 and the latest flights at 20:33 with the most popular flight number being DL3995, DL3999, DL4008 and DL4015.

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
Qatar AirwaysQR2136
Jet Linx AviationJL6389
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2106
09:55
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:15
AirlineFlightNo
Alaska AirlinesAS1255
Qatar AirwaysQR2025
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:38
AirlineFlightNo
Alaska AirlinesAS1119
20:33
AirlineFlightNo
Delta ConnectionDL4015
22:37
AirlineFlightNo
Alaska AirlinesAS1087
VIEW FLIGHTS
Tuesday
06:00
AirlineFlightNo
Qatar AirwaysQR2106
Jet Linx AviationJL6389
07:00
AirlineFlightNo
WestJetWS8420
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2136
09:55
AirlineFlightNo
Korean AirKE3098
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:01
AirlineFlightNo
Qatar AirwaysQR2025
Alaska SkyWestAS3452
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:38
AirlineFlightNo
Alaska AirlinesAS1119
20:33
AirlineFlightNo
Delta ConnectionDL4015
VIEW FLIGHTS
Wednesday
06:00
AirlineFlightNo
Qatar AirwaysQR2136
Jet Linx AviationJL6389
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2106
09:55
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:01
AirlineFlightNo
Qatar AirwaysQR2025
Alaska SkyWestAS3452
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:38
AirlineFlightNo
Alaska AirlinesAS1119
20:33
AirlineFlightNo
Delta ConnectionDL4015
VIEW FLIGHTS
Thursday
06:00
AirlineFlightNo
Qatar AirwaysQR2106
Jet Linx AviationJL6389
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2136
09:55
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:15
AirlineFlightNo
Alaska AirlinesAS1255
Qatar AirwaysQR2025
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:38
AirlineFlightNo
Alaska AirlinesAS1119
20:33
AirlineFlightNo
Delta ConnectionDL4015
22:37
AirlineFlightNo
Alaska AirlinesAS1087
VIEW FLIGHTS
Friday
06:00
AirlineFlightNo
Qatar AirwaysQR2136
Jet Linx AviationJL6389
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2106
09:55
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:15
AirlineFlightNo
Alaska AirlinesAS1255
Qatar AirwaysQR2025
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:19
AirlineFlightNo
Alaska AirlinesAS1113
20:33
AirlineFlightNo
Delta ConnectionDL4015
22:00
AirlineFlightNo
Alaska SkyWestAS9799
22:37
AirlineFlightNo
Alaska AirlinesAS1087
VIEW FLIGHTS
Saturday
06:00
AirlineFlightNo
Qatar AirwaysQR2106
Jet Linx AviationJL6389
08:45
AirlineFlightNo
Alaska AirlinesAS1091
Japan AirlinesJL6389
Qatar AirwaysQR2136
09:55
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Delta ConnectionDL4008
Virgin AtlanticVS5467
13:01
AirlineFlightNo
Qatar AirwaysQR2025
Alaska HorizonAS2055
14:19
AirlineFlightNo
KLMKL6907
Delta ConnectionDL3995
Virgin AtlanticVS3853
16:55
AirlineFlightNo
KLMKL7203
Delta ConnectionDL3999
Virgin AtlanticVS5381
19:38
AirlineFlightNo
Alaska AirlinesAS1119
20:33
AirlineFlightNo
Delta ConnectionDL4015
VIEW FLIGHTS
Sunday
06:00
AirlineFlightNo
Qatar AirwaysQR2106
Qatar AirwaysQR2136
Jet Linx AviationJL6389
07:00
AirlineFlightNo
Korean AirKE3098
WestJetWS8420
KLMKL7569
Virgin AtlanticVS5467
08:45
AirlineFlightNo
Alaska AirlinesAS1091
09:55
AirlineFlightNo
Delta ConnectionDL4008
10:29
AirlineFlightNo
Qatar AirwaysQR2025
11:20
AirlineFlightNo
KLMKL6907
Virgin AtlanticVS3853
13:15
AirlineFlightNo
Alaska AirlinesAS1255
14:00
AirlineFlightNo
KLMKL7203
Virgin AtlanticVS5381
14:19
AirlineFlightNo
Delta ConnectionDL3995
16:55
AirlineFlightNo
Delta ConnectionDL3999
19:21
AirlineFlightNo
Alaska HorizonAS2176
20:33
AirlineFlightNo
Delta ConnectionDL4015
22:37
AirlineFlightNo
Alaska AirlinesAS1087
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
San Bernardino Norton Afb to Seattle 01,544 km (960 miles)2 Hours 38 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 Alaska 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 £49.06 ($62 €57.93)
£49.06
$62 | €57.93
Check Latest Price
DIRECT Alaska 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 £98.91 ($125 €116.79)
£98.91
$125 | €116.79
Check Latest Price
1+ STOP(S)
What is the cheapest flight one way from Ontario ONT to Seattle SEA?
The cheapest flight one way from Ontario ONT to Seattle SEA is £44.31 ($56 €52.32)
£44.31
$56 | €52.32
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 £85.46 ($108 €100.91)
£85.46
$108 | €100.91
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, 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.

Other Airports Connecting To Seattle Airport in united states

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