Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £56.67

One-way from £24.61

A variety of 13 airline companies have direct flights to Ontario International to Seattle-Tacoma International, 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. 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
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 offer the most direct flights from Seattle-Tacoma International to Ontario International with an average of 27 flights a week. The earliest flights are operated at 00:14 and the latest flights operated at 21:35 and the most common flight numbers are HA6828, HA6829, HA6834 and HA6836

For more details regarding Hawaiian Airlines flight information and bookings you can visit them at hawaiianair.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
07:10
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4070
11:06
AirlineFlightNo
VolarisY42574
FrontierF93163
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlightNo
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Tuesday
07:10
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4070
11:06
AirlineFlightNo
VolarisY42574
FrontierF93163
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:08
AirlineFlightNo
WestJetWS7136
20:07
AirlineFlightNo
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Wednesday
07:10
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
09:45
AirlineFlightNo
Delta ConnectionDL4070
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
21:35
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Thursday
07:10
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
09:45
AirlineFlightNo
Delta ConnectionDL4070
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
KLMKL6436
Delta ConnectionDL3834
17:08
AirlineFlightNo
WestJetWS7136
21:35
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Friday
07:10
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4070
11:06
AirlineFlightNo
VolarisY42574
FrontierF93163
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:44
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlightNo
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5470
21:35
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Saturday
00:14
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
07:20
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4070
12:16
AirlineFlightNo
VolarisY42574
FrontierF93163
13:02
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
14:30
AirlineFlightNo
Korean AirKE3070
WestJetWS7136
KLMKL6436
Delta ConnectionDL3834
15:53
AirlineFlightNo
Alaska AirlinesAS752
Hawaiian AirlinesHA6476
Qatar AirwaysQR2100
18:33
AirlineFlightNo
Hawaiian AirlinesHA6862
Qatar AirwaysQR3348
Alaska SkyWestAS3285
20:07
AirlineFlightNo
Delta ConnectionDL4027
21:35
AirlineFlightNo
Alaska AirlinesAS489
22:49
AirlineFlightNo
KLMKL6435
Virgin AtlanticVS5470
VIEW FLIGHTS
Sunday
00:14
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
07:10
AirlineFlightNo
Alaska AirlinesAS1364
08:15
AirlineFlightNo
Delta ConnectionDL4070
09:50
AirlineFlightNo
Hawaiian AirlinesHA6836
11:06
AirlineFlightNo
FrontierF93163
13:02
AirlineFlightNo
Alaska AirlinesAS664
13:42
AirlineFlightNo
VolarisY42574
14:30
AirlineFlightNo
Delta ConnectionDL3834
15:42
AirlineFlightNo
Hawaiian AirlinesHA6834
Jet Linx AviationJL6388
15:50
AirlineFlightNo
Alaska AirlinesAS592
17:08
AirlineFlightNo
Korean AirKE3070
WestJetWS7136
KLMKL6436
18:25
AirlineFlightNo
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:07
AirlineFlightNo
Delta Air LinesDL4027
21:35
AirlineFlightNo
Alaska AirlinesAS489
22:49
AirlineFlightNo
KLMKL6435
Virgin AtlanticVS5470
VIEW FLIGHTS

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 £24.61 ($33 €28.34)
£24.61
$33 | €28.34
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 £56.67 ($76 €65.26)
£56.67
$76 | €65.26
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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