Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £51.37

One-way from £27.54

A variety of 14 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Delta Air Lines, Air Transport International, Volaris, Frontier, Jet Linx Aviation, Virgin Atlantic, SAS, Qatar Airways, Korean Air, KLM, Hawaiian Airlines, Delta Connection, Alaska Airlines and WestJet. The distance covered when flying from Seattle-Tacoma International to Ontario International United States is 1,540 Km (957 Miles) with the travel time being around 2 Hours 37 Minutes. SEA is the Airport code for Seattle-Tacoma International and ONT is for Ontario International United States.

The cost of ticket prices to Ontario International United States can vary quite considerably if you travel at certain times of the week especially at weekends. It is normally worth booking flights well in advance if possible to get the best deal to Ontario International United States perhaps midweek or late evening. Please book in advance if you want to take advantage of the best prices airlines have to offer as prices normally increase as time goes on.

Below you can see a table that shows the airlines that fly from Seattle-Tacoma International (SEA) to Ontario International (ONT) and frequency of flights daily.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
WestJet334554414:2422:41VIEW FLIGHTS
Hawaiian Airlines333332300:0321:25VIEW FLIGHTS
Delta Connection333333208:1519:55VIEW FLIGHTS
Alaska Airlines333332309:5121:25VIEW FLIGHTS
Korean Air222222214:2422:41VIEW FLIGHTS
KLM222222214:2422:41VIEW FLIGHTS
Qatar Airways222221200:0321:25VIEW FLIGHTS
Virgin Atlantic111111119:5522:41VIEW FLIGHTS
SAS111111119:5522:41VIEW FLIGHTS
Jet Linx Aviation111110118:3318:33VIEW FLIGHTS
Volaris100010108:2812:30VIEW FLIGHTS
Frontier100010108:2812:30VIEW FLIGHTS
Delta Air Lines000000119:5519:55VIEW FLIGHTS
Air Transport International001000003:3003:30VIEW FLIGHTS

WestJet offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 28 flights a week. The earliest flights are operated at 14:24 and the latest flights operated at 22:41 and the most common flight numbers are WS5456, WS7572, WS8040 and WS8051

For more details regarding WestJet flight information and bookings you can visit them at westjet.com

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
08:15
AirlineFlightNo
Delta ConnectionDL4096
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:30
AirlineFlightNo
VolarisY42539
FrontierF93163
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8051
KLMKL6208
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
17:10
AirlineFlightNo
WestJetWS8373
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:41
AirlineFlightNo
WestJetWS5456
VIEW FLIGHTS
Tuesday
08:15
AirlineFlightNo
Delta ConnectionDL4096
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8051
KLMKL6208
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Korean AirKE3106
WestJetWS5456
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:41
AirlineFlightNo
SASSK3676
WestJetWS8040
VIEW FLIGHTS
Wednesday
03:30
AirlineFlightNo
Air Transport International8C6757
08:15
AirlineFlightNo
Delta ConnectionDL4096
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8051
KLMKL6208
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
17:10
AirlineFlightNo
WestJetWS8373
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS8040
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:41
AirlineFlightNo
WestJetWS5456
VIEW FLIGHTS
Thursday
08:15
AirlineFlightNo
Delta ConnectionDL4096
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6208
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
17:10
AirlineFlightNo
WestJetWS8051
WestJetWS8421
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Korean AirKE3106
WestJetWS5456
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:41
AirlineFlightNo
SASSK3676
WestJetWS8040
VIEW FLIGHTS
Friday
08:15
AirlineFlightNo
Delta ConnectionDL4096
08:28
AirlineFlightNo
VolarisY42539
FrontierF93163
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8421
KLMKL6208
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
17:10
AirlineFlightNo
WestJetWS8373
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS8040
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
22:41
AirlineFlightNo
WestJetWS5456
WestJetWS7572
VIEW FLIGHTS
Saturday
00:03
AirlineFlightNo
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
08:15
AirlineFlightNo
Delta ConnectionDL4096
09:51
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6208
Delta ConnectionDL4031
17:10
AirlineFlightNo
WestJetWS8421
19:55
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7572
WestJetWS8040
KLMKL6206
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS1003
VIEW FLIGHTS
Sunday
00:03
AirlineFlightNo
Hawaiian AirlinesHA6811
Qatar AirwaysQR4277
08:15
AirlineFlightNo
Delta ConnectionDL4096
08:28
AirlineFlightNo
FrontierF93163
09:51
AirlineFlightNo
Alaska AirlinesAS1254
11:08
AirlineFlightNo
VolarisY42539
12:37
AirlineFlightNo
Hawaiian AirlinesHA6814
14:24
AirlineFlightNo
Delta ConnectionDL4031
15:54
AirlineFlightNo
Alaska AirlinesAS1086
17:10
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
WestJetWS8421
KLMKL6208
18:33
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR3308
Jet Linx AviationJL6388
19:55
AirlineFlightNo
Delta Air LinesDL4027
21:25
AirlineFlightNo
Alaska AirlinesAS1003
22:41
AirlineFlightNo
Korean AirKE3106
SASSK3676
WestJetWS7572
WestJetWS8040
KLMKL6206
Virgin AtlanticVS5376
VIEW FLIGHTS

There may also be different routes to Ontario International, by an alternative nearby airport. Please see details below.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Seattle Boeing Field King County to Ontario01,549 km (962 miles)2 Hours 38 Minutes
Bremerton to Ontario01,554 km (965 miles)2 Hours 38 Minutes

Don’t forget that flight regulations are getting tight so we recommend you leave plenty of time to get through customs at Seattle-Tacoma International.

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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 £27.54 ($37 €31.65)
£27.54
$37 | €31.65
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 £51.37 ($69 €59.02)
£51.37
$69 | €59.02
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): Air Transport International, Alaska Airlines, Delta Air Lines, Delta Connection, Frontier, Hawaiian Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, SAS, 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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