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

We've found the cheapest flights to Ontario

Returns from £65.94

One-way from £32.97

Airliners including Air Transport International, Volaris, Frontier, Japan Airlines, Aeromexico, Qatar Airways, Virgin Atlantic, Korean Air, WestJet, 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 Connection444444408:2019:59VIEW FLIGHTS
Hawaiian Airlines423443408:1323:59VIEW FLIGHTS
Alaska Airlines423443408:1321:22VIEW FLIGHTS
WestJet223244416:4422:43VIEW FLIGHTS
KLM333333308:2022:43VIEW FLIGHTS
Virgin Atlantic222222208:2022:43VIEW FLIGHTS
Korean Air222222216:4422:43VIEW FLIGHTS
Qatar Airways211221214:5623:59VIEW FLIGHTS
Japan Airlines111111112:5917:55VIEW FLIGHTS
Aeromexico111111108:2011:05VIEW FLIGHTS
Volaris100100118:5021:25VIEW FLIGHTS
Frontier100100118:5018:52VIEW FLIGHTS
Air Transport International000010016:1516:15VIEW FLIGHTS

Delta Connection is the most popular airliners who operate this route. They have around 28 a week with times that vary between 08:20 and 19:59.

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
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
18:52
AirlineFlight  No
VolarisY42603
FrontierF93163
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Tuesday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Japan AirlinesJL6388
Qatar AirwaysQR4277
19:59
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7598
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Qatar AirwaysQR4277
19:59
AirlineFlight  No
Korean AirKE3106
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
22:43
AirlineFlight  No
WestJetWS6551
VIEW FLIGHTS
Thursday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
11:05
AirlineFlight  No
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS8642
KLMKL6208
18:50
AirlineFlight  No
VolarisY42603
FrontierF93163
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Friday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
14:56
AirlineFlight  No
Alaska AirlinesAS1086
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
16:15
AirlineFlight  No
Air Transport International8C6711
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
19:59
AirlineFlight  No
Delta ConnectionDL4027
21:22
AirlineFlight  No
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:43
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Saturday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:20
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
14:00
AirlineFlight  No
Delta ConnectionDL4031
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
17:55
AirlineFlight  No
Alaska AirlinesAS1088
Hawaiian AirlinesHA4757
Qatar AirwaysQR4277
20:15
AirlineFlight  No
Delta ConnectionDL4027
22:57
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
WestJetWS6551
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS
Sunday
08:13
AirlineFlight  No
Alaska AirlinesAS1254
08:20
AirlineFlight  No
Delta ConnectionDL4070
10:51
AirlineFlight  No
Hawaiian AirlinesHA6814
11:05
AirlineFlight  No
AeromexicoAM4248
KLMKL7189
Virgin AtlanticVS3687
11:15
AirlineFlight  No
Delta ConnectionDL3946
12:59
AirlineFlight  No
Alaska AirlinesAS1097
14:00
AirlineFlight  No
Delta ConnectionDL4031
15:32
AirlineFlight  No
Hawaiian AirlinesHA6813
Japan AirlinesJL6388
15:56
AirlineFlight  No
Alaska AirlinesAS1086
16:44
AirlineFlight  No
Korean AirKE3070
WestJetWS7400
WestJetWS8642
KLMKL6208
18:30
AirlineFlight  No
Hawaiian AirlinesHA6668
Qatar AirwaysQR2108
18:50
AirlineFlight  No
FrontierF93163
19:59
AirlineFlight  No
Korean AirKE3106
WestJetWS5465
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:22
AirlineFlight  No
Alaska AirlinesAS1003
21:25
AirlineFlight  No
VolarisY42603
22:43
AirlineFlight  No
WestJetWS6551
23:59
AirlineFlight  No
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
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
Bellingham to Ontario 02 Hours 48 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.

Don't forget to book your car rental!

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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 £32.97 ($44 €38.72)
£32.97
$44 | €38.72
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 £65.94 ($88 €77.43)
£65.94
$88 | €77.43
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): Aeromexico, Air Transport International, Alaska Airlines, Delta Connection, Frontier, Hawaiian Airlines, Japan Airlines, 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.

Other Airports Connecting To Ontario Airport in united states

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Useful Information about Ontario Airport

Lounges at Ontario Airport

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

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Eating and Drinking at Ontario Airport

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

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Duty Free Shopping at Ontario Airport

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

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Ontario Tourist Attractions

Things to see and do in and around Ontario in Canada

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