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

We've found the cheapest flights to Ontario

Returns from £54.68

One-way from £20.97

Airliners including Solairus Aviation, Delta Air Lines, Volaris, Frontier, WestJet, Virgin Atlantic, Jet Linx Aviation, Qatar Airways, Korean Air, KLM, Hawaiian Airlines, Alaska Airlines and Delta Connection 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
Delta Connection333333208:3020:05VIEW FLIGHTS
Hawaiian Airlines322332308:4323:29VIEW FLIGHTS
Alaska Airlines322332308:4320:55VIEW FLIGHTS
Korean Air222222214:1922:47VIEW FLIGHTS
KLM222222214:1922:47VIEW FLIGHTS
Qatar Airways211221218:3323:29VIEW FLIGHTS
Virgin Atlantic111111120:0522:47VIEW FLIGHTS
Jet Linx Aviation111111118:3318:33VIEW FLIGHTS
WestJet110111114:1917:07VIEW FLIGHTS
Volaris000010110:5110:51VIEW FLIGHTS
Frontier000010110:5110:51VIEW FLIGHTS
Solairus Aviation0000010VIEW FLIGHTS
Delta Air Lines000000120:0520:05VIEW FLIGHTS

Delta Connection is the most popular airliners who operate this route. They have around 20 a week with times that vary between 08:30 and 20:05.

To book your flight you can visit Delta Connection on their website www.google.com/search?q=Delta Connection. 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
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
14:19
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:55
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Tuesday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
14:19
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
17:07
AirlineFlight  No
WestJetWS8373
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
14:19
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
14:19
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
17:07
AirlineFlight  No
WestJetWS8373
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:55
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Friday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
10:51
AirlineFlight  No
VolarisY42506
FrontierF93163
14:19
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:55
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Saturday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
11:30
AirlineFlight  No
Solairus AviationTWY201
14:19
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
08:30
AirlineFlight  No
Delta ConnectionDL4096
08:43
AirlineFlight  No
Alaska AirlinesAS1364
10:51
AirlineFlight  No
VolarisY42506
FrontierF93163
11:19
AirlineFlight  No
Hawaiian AirlinesHA6836
14:19
AirlineFlight  No
Delta ConnectionDL4031
15:57
AirlineFlight  No
Alaska AirlinesAS592
17:07
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
18:33
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
Jet Linx AviationJL6388
20:05
AirlineFlight  No
Delta Air LinesDL4027
20:55
AirlineFlight  No
Alaska AirlinesAS489
22:47
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Virgin AtlanticVS5376
23:29
AirlineFlight  No
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS

If the airlines stated don’t offer flights that suite your travel times, you could look at alternative options. Below we have summarised flights from alternative departures airports and flights that are not direct.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Seattle Boeing Field King County to Ontario 02 Hours 38 Minutes

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 £20.97 ($28 €23.89)
£20.97
$28 | €23.89
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 £54.68 ($73 €62.29)
£54.68
$73 | €62.29
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, Delta Air Lines, Delta Connection, Frontier, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Solairus Aviation, 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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