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

We've found the cheapest flights to Ontario

Returns from £56.30

One-way from £24.45

Airliners including Delta Air Lines, Alaska SkyWest, Volaris, Virgin Atlantic, Frontier, WestJet, Korean Air, Jet Linx Aviation, KLM, Qatar Airways, Delta Connection, Alaska Airlines and Hawaiian Airlines all offer direct flights between Seattle-Tacoma International to Ontario International. When travelling from Seattle-Tacoma International you will cover about 957 miles before you reach Ontario International. This journey will take 2 Hours 37 Minutes.

The exact cost of the flight we vary quite significantly base on the dates you travel, the time of day you will depart and how long in advance you pre book the flights. 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. Flight to Ontario International will get more expensive the nearer you get the departure date, so it’s advisable to book in advance if it is possible.

To see all airliners that offer flights between Seattle-Tacoma International and Ontario International please see the table below.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines443345400:1421:35VIEW FLIGHTS
Alaska Airlines443344407:1021:35VIEW FLIGHTS
Delta Connection332233208:1520:07VIEW FLIGHTS
Qatar Airways221123200:1421:35VIEW FLIGHTS
KLM221122214:3022:49VIEW FLIGHTS
Korean Air111111114:3017:08VIEW FLIGHTS
Jet Linx Aviation111111113:0215:42VIEW FLIGHTS
WestJet110111114:3017:08VIEW FLIGHTS
Volaris110011111:0613:42VIEW FLIGHTS
Virgin Atlantic110011120:0722:49VIEW FLIGHTS
Frontier110011111:0611:06VIEW FLIGHTS
Delta Air Lines000000120:0720:07VIEW FLIGHTS
Alaska SkyWest0000010VIEW FLIGHTS

Hawaiian Airlines is the most popular airliners who operate this route. They have around 27 a week with times that vary between 00:14 and 21:35.

To book your flight you can visit Hawaiian Airlines on their website hawaiianair.com. You will find up to date information on availability and the 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
07:10
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4070
11:06
AirlineFlight  No
VolarisY42574
FrontierF93163
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlight  No
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Tuesday
07:10
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4070
11:06
AirlineFlight  No
VolarisY42574
FrontierF93163
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:08
AirlineFlight  No
WestJetWS7136
20:07
AirlineFlight  No
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Wednesday
07:10
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
09:45
AirlineFlight  No
Delta ConnectionDL4070
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
21:35
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Thursday
07:10
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
09:45
AirlineFlight  No
Delta ConnectionDL4070
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
17:08
AirlineFlight  No
WestJetWS7136
21:35
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Friday
07:10
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4070
11:06
AirlineFlight  No
VolarisY42574
FrontierF93163
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:44
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlight  No
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Saturday
00:14
AirlineFlight  No
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
07:20
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4070
12:16
AirlineFlight  No
VolarisY42574
FrontierF93163
13:02
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlight  No
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:53
AirlineFlight  No
Alaska AirlinesAS752
Hawaiian AirlinesHA6476
Qatar AirwaysQR2100
18:33
AirlineFlight  No
Hawaiian AirlinesHA6862
Qatar AirwaysQR3348
Alaska SkyWestAS3285
20:07
AirlineFlight  No
Delta ConnectionDL4027
21:35
AirlineFlight  No
Alaska AirlinesAS489
22:49
AirlineFlight  No
KLMKL6435
Virgin AtlanticVS5470
VIEW FLIGHTS
Sunday
00:14
AirlineFlight  No
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
07:10
AirlineFlight  No
Alaska AirlinesAS1364
08:15
AirlineFlight  No
Delta ConnectionDL4070
09:50
AirlineFlight  No
Hawaiian AirlinesHA6836
11:06
AirlineFlight  No
FrontierF93163
13:02
AirlineFlight  No
Alaska AirlinesAS664
13:42
AirlineFlight  No
VolarisY42574
14:30
AirlineFlight  No
Delta ConnectionDL3834
15:42
AirlineFlight  No
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
15:50
AirlineFlight  No
Alaska AirlinesAS592
17:08
AirlineFlight  No
Korean AirKE3070
WestJetWS7136
KLMKL6436
18:25
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlight  No
Delta Air LinesDL4027
21:35
AirlineFlight  No
Alaska AirlinesAS489
22:49
AirlineFlight  No
KLMKL6435
Virgin AtlanticVS5470
VIEW FLIGHTS

Please remember to leave plenty of time to get though customers when you are departing form the airports. Flights regulations are getting very strict these days so getting through customs can take in excess of 1 hour in some cases.

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

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Seattle SEA to Ontario ONT?
The cheapest direct flight one way from Seattle SEA to Ontario ONT is £24.45 ($33 €28.23)
£24.45
$33 | €28.23
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Seattle SEA to Ontario ONT?
The cheapest direct return flight from Seattle SEA to Ontario ONT is £56.30 ($76 €65.02)
£56.30
$76 | €65.02
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 SEA to ONT

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

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

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Useful Information about Ontario Airport

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