Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £64.19

One-way from £30.16

A variety of 12 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Japan Airlines, Jet Linx Aviation, Frontier, Aeromexico, WestJet, Qatar Airways, Virgin Atlantic, Korean Air, Alaska Airlines, Hawaiian Airlines, KLM and Delta Connection. 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
KLM333333308:1522:22VIEW FLIGHTS
Delta Connection333333308:1519:40VIEW FLIGHTS
Hawaiian Airlines422332308:0121:23VIEW FLIGHTS
Alaska Airlines322332308:0121:23VIEW FLIGHTS
Virgin Atlantic222222208:1522:22VIEW FLIGHTS
Korean Air222222213:5922:22VIEW FLIGHTS
Qatar Airways211221218:1921:23VIEW FLIGHTS
WestJet111122213:5916:42VIEW FLIGHTS
Aeromexico111111108:1511:02VIEW FLIGHTS
Jet Linx Aviation101110018:1918:23VIEW FLIGHTS
Frontier100110112:5212:52VIEW FLIGHTS
Japan Airlines010000118:2318:55VIEW FLIGHTS

KLM offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 21 flights a week. The earliest flights are operated at 08:15 and the latest flights operated at 22:22 and the most common flight numbers are KL6282, KL6284 and KL7189

For more details regarding KLM flight information and bookings you can visit them at klm.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
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
08:25
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
12:52
AirlineFlightNo
FrontierF93163
13:59
AirlineFlightNo
Korean AirKE3070
WestJetWS8534
KLMKL6284
Delta ConnectionDL4031
15:49
AirlineFlightNo
Alaska AirlinesAS1086
18:19
AirlineFlightNo
Hawaiian AirlinesHA6503
Hawaiian AirlinesHA6610
Qatar AirwaysQR2126
Jet Linx AviationJL6388
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
20:49
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6609
Qatar AirwaysQR4277
VIEW FLIGHTS
Tuesday
08:15
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
08:25
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
13:59
AirlineFlightNo
Korean AirKE3070
WestJetWS8534
KLMKL6284
Delta ConnectionDL4031
18:55
AirlineFlightNo
Alaska AirlinesAS1088
Hawaiian AirlinesHA6609
Japan AirlinesJL6388
Qatar AirwaysQR4277
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Wednesday
08:01
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:15
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
13:59
AirlineFlightNo
Korean AirKE3070
WestJetWS8534
KLMKL6284
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS1086
18:23
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2126
Jet Linx AviationJL6388
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
VIEW FLIGHTS
Thursday
08:01
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:15
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
11:02
AirlineFlightNo
Virgin AtlanticVS3687
12:52
AirlineFlightNo
FrontierF93163
13:59
AirlineFlightNo
Korean AirKE3070
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS1086
16:42
AirlineFlightNo
WestJetWS8534
KLMKL6284
18:23
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2126
Jet Linx AviationJL6388
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:23
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6667
Qatar AirwaysQR4277
VIEW FLIGHTS
Friday
08:01
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:15
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
12:52
AirlineFlightNo
FrontierF93163
13:59
AirlineFlightNo
Korean AirKE3070
WestJetWS8534
KLMKL6284
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS1086
16:42
AirlineFlightNo
WestJetWS7083
18:23
AirlineFlightNo
Hawaiian AirlinesHA6668
Qatar AirwaysQR2126
Jet Linx AviationJL6388
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:23
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6667
Qatar AirwaysQR4277
VIEW FLIGHTS
Saturday
08:01
AirlineFlightNo
Alaska AirlinesAS1254
Hawaiian AirlinesHA6814
08:15
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Delta ConnectionDL4070
Virgin AtlanticVS3687
13:59
AirlineFlightNo
Korean AirKE3070
WestJetWS7083
KLMKL6284
Delta ConnectionDL4031
16:42
AirlineFlightNo
WestJetWS8534
19:40
AirlineFlightNo
Korean AirKE3106
KLMKL6282
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:23
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6667
Qatar AirwaysQR4277
VIEW FLIGHTS
Sunday
08:01
AirlineFlightNo
Alaska AirlinesAS1254
08:15
AirlineFlightNo
Delta ConnectionDL4070
10:39
AirlineFlightNo
Hawaiian AirlinesHA6814
11:02
AirlineFlightNo
AeromexicoAM4248
KLMKL7189
Virgin AtlanticVS3687
12:52
AirlineFlightNo
FrontierF93163
13:59
AirlineFlightNo
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS1086
16:42
AirlineFlightNo
Korean AirKE3070
WestJetWS7083
WestJetWS8534
KLMKL6284
18:23
AirlineFlightNo
Hawaiian AirlinesHA6668
Japan AirlinesJL6388
Qatar AirwaysQR2126
19:40
AirlineFlightNo
Delta ConnectionDL4027
21:23
AirlineFlightNo
Alaska AirlinesAS1003
Hawaiian AirlinesHA6667
Qatar AirwaysQR4277
22:22
AirlineFlightNo
Korean AirKE3106
KLMKL6282
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
Bellingham to Ontario01,689 km (1,049 miles)2 Hours 48 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 £30.16 ($39 €36.20)
£30.16
$39 | €36.20
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 £64.19 ($83 €77.04)
£64.19
$83 | €77.04
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, Alaska Airlines, Delta Connection, Frontier, Hawaiian Airlines, Japan Airlines, Jet Linx Aviation, KLM, Korean Air, Qatar Airways, Virgin Atlantic, 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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