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

We've found the cheapest flights to Ontario

Returns from £54.91

One-way from £21.06

Airliners including 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 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
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 is the most popular airliners who operate this route. They have around 28 a week with times that vary between 01:01 and 23:59.

To book your flight you can visit Hawaiian Airlines on their website hawaiianair.com. 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
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4096
10:30
AirlineFlight  No
Air Transport International8C6727
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlight  No
VolarisY42520
FrontierF93163
14:19
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
22:25
AirlineFlight  No
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
VIEW FLIGHTS
Tuesday
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4096
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlight  No
VolarisY42520
FrontierF93163
14:19
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:09
AirlineFlight  No
WestJetWS8373
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
22:25
AirlineFlight  No
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
VIEW FLIGHTS
Wednesday
01:01
AirlineFlight  No
Alaska AirlinesAS1468
Hawaiian AirlinesHA4709
Qatar AirwaysQR2102
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:15
AirlineFlight  No
Delta ConnectionDL4096
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlight  No
VolarisY42520
FrontierF93163
14:19
AirlineFlight  No
Korean AirKE3070
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
17:09
AirlineFlight  No
WestJetWS8373
20:05
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Delta ConnectionDL4027
Virgin AtlanticVS5376
21:25
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Thursday
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
15:30
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
VIEW FLIGHTS
Friday
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlight  No
VolarisY42528
FrontierF93163
15:30
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
15:50
AirlineFlight  No
Alaska AirlinesAS592
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
21:25
AirlineFlight  No
Alaska AirlinesAS489
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Saturday
07:15
AirlineFlight  No
Alaska AirlinesAS1364
Hawaiian AirlinesHA6836
08:17
AirlineFlight  No
Delta ConnectionDL4096
13:22
AirlineFlight  No
Alaska AirlinesAS664
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
14:17
AirlineFlight  No
VolarisY42528
FrontierF93163
14:19
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
Delta ConnectionDL4031
20:05
AirlineFlight  No
Delta Air LinesDL4027
21:25
AirlineFlight  No
Alaska AirlinesAS489
22:55
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Virgin AtlanticVS5376
23:59
AirlineFlight  No
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS
Sunday
07:15
AirlineFlight  No
Alaska AirlinesAS1364
08:17
AirlineFlight  No
Delta ConnectionDL4096
09:55
AirlineFlight  No
Hawaiian AirlinesHA6836
13:22
AirlineFlight  No
Alaska AirlinesAS664
14:17
AirlineFlight  No
FrontierF93163
14:19
AirlineFlight  No
Delta ConnectionDL4031
15:50
AirlineFlight  No
Alaska AirlinesAS592
15:54
AirlineFlight  No
Hawaiian AirlinesHA6834
Japan AirlinesJL6388
16:57
AirlineFlight  No
VolarisY42528
17:09
AirlineFlight  No
Korean AirKE3070
WestJetWS8373
KLMKL6436
18:27
AirlineFlight  No
Hawaiian AirlinesHA6829
Qatar AirwaysQR3336
20:05
AirlineFlight  No
Delta Air LinesDL4027
21:25
AirlineFlight  No
Alaska AirlinesAS489
22:55
AirlineFlight  No
Korean AirKE3106
KLMKL6435
Virgin AtlanticVS5376
23:59
AirlineFlight  No
Hawaiian AirlinesHA6828
Qatar AirwaysQR3331
VIEW FLIGHTS

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.

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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 £21.06 ($28 €24)
£21.06
$28 | €24
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 £54.91 ($73 €62.58)
£54.91
$73 | €62.58
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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