Flights from Seattle Airport SEA to Ontario Airport ONT

We've found the cheapest flights to Ontario

Returns from £40.75

One-way from £21.88

A variety of 13 airline companies have direct flights to Ontario International to Seattle-Tacoma International, Air Transport International, Delta Air Lines, Virgin Atlantic, Volaris, Frontier, WestJet, Japan Airlines, Korean Air, KLM, Qatar Airways, Delta Connection, Hawaiian Airlines and Alaska 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 Airlines555243401:0123:59VIEW FLIGHTS
Alaska Airlines555243401:0122:25VIEW FLIGHTS
Delta Connection333112208:1520:05VIEW FLIGHTS
Qatar Airways333021201:0123:59VIEW FLIGHTS
Korean Air222112214:1922:55VIEW FLIGHTS
KLM222112214:1922:55VIEW FLIGHTS
WestJet111111114:1917:09VIEW FLIGHTS
Japan Airlines111111113:2215:54VIEW FLIGHTS
Volaris111011114:1716:57VIEW FLIGHTS
Frontier111011114:1714:17VIEW FLIGHTS
Virgin Atlantic111001120:0522:55VIEW FLIGHTS
Delta Air Lines000001120:0520:05VIEW FLIGHTS
Air Transport International100000010:3010:30VIEW FLIGHTS

Hawaiian Airlines 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 01:01 and the latest flights operated at 23:59 and the most common flight numbers are HA4709, HA6828, HA6829 and HA6834

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
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4096
10:30
AirlineFlightNo
Air Transport International8C6727
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlightNo
VolarisY42520
FrontierF93163
14:19
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:05
AirlineFlightNo
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
22:25
AirlineFlightNo
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
VIEW FLIGHTS
Tuesday
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4096
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlightNo
VolarisY42520
FrontierF93163
14:19
AirlineFlightNo
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:09
AirlineFlightNo
WestJetWS8373
20:05
AirlineFlightNo
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
22:25
AirlineFlightNo
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
VIEW FLIGHTS
Wednesday
01:01
AirlineFlightNo
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlightNo
Delta ConnectionDL4096
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlightNo
VolarisY42520
FrontierF93163
14:19
AirlineFlightNo
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:09
AirlineFlightNo
WestJetWS8373
20:05
AirlineFlightNo
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Thursday
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
15:30
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
VIEW FLIGHTS
Friday
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlightNo
VolarisY42528
FrontierF93163
15:30
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
21:25
AirlineFlightNo
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Saturday
07:15
AirlineFlightNo
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:17
AirlineFlightNo
Delta ConnectionDL4096
13:22
AirlineFlightNo
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlightNo
VolarisY42528
FrontierF93163
14:19
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
20:05
AirlineFlightNo
Delta Air LinesDL4027
21:25
AirlineFlightNo
Alaska AirlinesAS489
22:55
AirlineFlightNo
Korean AirKE3106
KLMKL6435
Virgin AtlanticVS5376
23:59
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Sunday
07:15
AirlineFlightNo
Alaska AirlinesAS1364
08:17
AirlineFlightNo
Delta ConnectionDL4096
09:55
AirlineFlightNo
Hawaiian AirlinesHA6836
13:22
AirlineFlightNo
Alaska AirlinesAS664
14:17
AirlineFlightNo
FrontierF93163
14:19
AirlineFlightNo
Delta ConnectionDL4031
15:50
AirlineFlightNo
Alaska AirlinesAS592
15:54
AirlineFlightNo
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
16:57
AirlineFlightNo
VolarisY42528
17:09
AirlineFlightNo
Korean AirKE3070
WestJetWS8373
KLMKL6436
18:27
AirlineFlightNo
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:05
AirlineFlightNo
Delta Air LinesDL4027
21:25
AirlineFlightNo
Alaska AirlinesAS489
22:55
AirlineFlightNo
Korean AirKE3106
KLMKL6435
Virgin AtlanticVS5376
23:59
AirlineFlightNo
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
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 £21.88 ($29 €25.01)
£21.88
$29 | €25.01
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 £40.75 ($54 €46.57)
£40.75
$54 | €46.57
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, 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.

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