Flights from Ontario Airport ONT to Seattle Airport SEA

We've found the cheapest flights to Seattle

Returns from £45.11

One-way from £22.95

If it is your first time travelling to Seattle-Tacoma International then check out the airliners Volaris, LATAM Airlines, ITA Airways, Frontier, Air France, Japan Airlines, WestJet, Korean Air, KLM, Delta Connection, Virgin Atlantic, Qatar Airways, Alaska Airlines and Hawaiian Airlines. These airliners all offer direct flights that depart from Ontario International, so you will find flying to Seattle-Tacoma International is quite easy. When travelling from Ontario International you will cover about 957 miles before you reach Seattle-Tacoma International. This journey will take 2 Hours 37 Minutes.

The price of the flight is dependent on the time of the day you fly and the day of the week with weekends being normally a higher price. 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. We advise all our viewers to book well in advance. This way you will get the low priced tickets available.

The table below displays the numbers of daily flights from Ontario International (ONT) to Seattle-Tacoma International (SEA) and the relevant airlines that fly.

Flights Chart
AirlinerMoTuWeThFrSaSuFirst FlightLast FlightFlights
Hawaiian Airlines744666806:0020:59VIEW FLIGHTS
Alaska Airlines533543506:0020:59VIEW FLIGHTS
Virgin Atlantic233343305:4017:25VIEW FLIGHTS
Qatar Airways422333406:0020:59VIEW FLIGHTS
Delta Connection333332305:4017:25VIEW FLIGHTS
Korean Air232332105:4017:25VIEW FLIGHTS
KLM232332105:4017:25VIEW FLIGHTS
WestJet322220111:1811:18VIEW FLIGHTS
Japan Airlines111111106:0006:00VIEW FLIGHTS
Air France012111017:2517:25VIEW FLIGHTS
Volaris100111107:5810:59VIEW FLIGHTS
LATAM Airlines011111017:2517:25VIEW FLIGHTS
ITA Airways011111017:2517:25VIEW FLIGHTS
Frontier100111107:5810:59VIEW FLIGHTS

Hawaiian Airlines offer the highest number of flights for this route with departures times between 06:00 and 20:59.

You can find the latest flight availability and prices from Hawaiian Airlines at hawaiianair.com. You can also book direct and get their 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
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Japan AirlinesJL6389
Qatar AirwaysQR2987
10:00
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
10:59
AirlineFlight  No
VolarisY42413
FrontierF93164
11:18
AirlineFlight  No
WestJetWS6897
WestJetWS6998
WestJetWS8152
Delta ConnectionDL4070
Virgin AtlanticVS5381
14:19
AirlineFlight  No
Alaska AirlinesAS1119
Hawaiian AirlinesHA6212
17:25
AirlineFlight  No
Korean AirKE3070
KLMKL6284
Delta ConnectionDL4031
18:30
AirlineFlight  No
Alaska AirlinesAS1399
Hawaiian AirlinesHA6137
Hawaiian AirlinesHA6169
Qatar AirwaysQR2009
20:59
AirlineFlight  No
Alaska AirlinesAS1007
Hawaiian AirlinesHA6174
Qatar AirwaysQR8852
VIEW FLIGHTS
Tuesday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Japan AirlinesJL6389
Qatar AirwaysQR2987
11:18
AirlineFlight  No
WestJetWS6897
WestJetWS6998
Delta ConnectionDL4070
Virgin AtlanticVS5381
11:29
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
16:15
AirlineFlight  No
Alaska AirlinesAS1099
Hawaiian AirlinesHA4816
17:25
AirlineFlight  No
Korean AirKE3070
Korean AirKE7360
Air FranceAF2133
KLMKL5455
KLMKL6284
ITA AirwaysAZ3408
LATAM AirlinesLA6297
Delta ConnectionDL4031
Virgin AtlanticVS4636
VIEW FLIGHTS
Wednesday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Japan AirlinesJL6389
Qatar AirwaysQR2987
11:18
AirlineFlight  No
WestJetWS6441
WestJetWS6897
Delta ConnectionDL4070
Virgin AtlanticVS5381
11:29
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
16:15
AirlineFlight  No
Alaska AirlinesAS1099
Hawaiian AirlinesHA4816
17:25
AirlineFlight  No
Korean AirKE7360
Air FranceAF2133
Air FranceAF8521
KLMKL5455
ITA AirwaysAZ3408
LATAM AirlinesLA6297
Delta ConnectionDL4031
Virgin AtlanticVS4636
VIEW FLIGHTS
Thursday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Japan AirlinesJL6389
Qatar AirwaysQR2987
07:58
AirlineFlight  No
VolarisY42413
FrontierF93164
10:00
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
11:18
AirlineFlight  No
WestJetWS6441
WestJetWS6897
Delta ConnectionDL4070
Virgin AtlanticVS5381
14:19
AirlineFlight  No
Alaska AirlinesAS1119
Hawaiian AirlinesHA6212
17:25
AirlineFlight  No
Korean AirKE3070
Korean AirKE7360
Air FranceAF8521
KLMKL5455
KLMKL6284
ITA AirwaysAZ3408
LATAM AirlinesLA6297
Delta ConnectionDL4031
Virgin AtlanticVS4636
18:30
AirlineFlight  No
Alaska AirlinesAS1399
Hawaiian AirlinesHA6137
20:59
AirlineFlight  No
Alaska AirlinesAS1007
Hawaiian AirlinesHA6174
Qatar AirwaysQR8852
VIEW FLIGHTS
Friday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Hawaiian AirlinesHA6191
Japan AirlinesJL6389
Qatar AirwaysQR2987
09:59
AirlineFlight  No
VolarisY42413
FrontierF93164
10:00
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
11:18
AirlineFlight  No
WestJetWS6441
WestJetWS6897
Delta ConnectionDL4070
Virgin AtlanticVS5381
14:19
AirlineFlight  No
Alaska AirlinesAS1119
Hawaiian AirlinesHA6212
17:25
AirlineFlight  No
Korean AirKE3070
Korean AirKE7360
Air FranceAF2133
KLMKL5455
KLMKL6284
ITA AirwaysAZ3408
LATAM AirlinesLA6297
Delta ConnectionDL4031
Virgin AtlanticVS4052
Virgin AtlanticVS4636
20:59
AirlineFlight  No
Alaska AirlinesAS1007
Hawaiian AirlinesHA6174
Qatar AirwaysQR8852
VIEW FLIGHTS
Saturday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Hawaiian AirlinesHA6191
Japan AirlinesJL6389
Qatar AirwaysQR2987
11:29
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
12:38
AirlineFlight  No
VolarisY42413
FrontierF93164
14:00
AirlineFlight  No
Korean AirKE7360
Air FranceAF2133
KLMKL5455
ITA AirwaysAZ3408
LATAM AirlinesLA6297
Delta ConnectionDL4031
Virgin AtlanticVS4052
Virgin AtlanticVS4636
18:30
AirlineFlight  No
Alaska AirlinesAS1399
Hawaiian AirlinesHA6159
Hawaiian AirlinesHA6169
Qatar AirwaysQR2009
VIEW FLIGHTS
Sunday
05:40
AirlineFlight  No
Korean AirKE3098
KLMKL6979
Delta ConnectionDL4042
Virgin AtlanticVS3853
06:00
AirlineFlight  No
Alaska AirlinesAS1091
Hawaiian AirlinesHA6185
Hawaiian AirlinesHA6191
Japan AirlinesJL6389
Qatar AirwaysQR2987
10:00
AirlineFlight  No
Alaska AirlinesAS1255
Hawaiian AirlinesHA6186
Hawaiian AirlinesHA6206
Qatar AirwaysQR2044
10:59
AirlineFlight  No
VolarisY42413
FrontierF93164
11:18
AirlineFlight  No
WestJetWS6734
Delta ConnectionDL4070
Virgin AtlanticVS5381
14:19
AirlineFlight  No
Alaska AirlinesAS1119
Hawaiian AirlinesHA6212
17:25
AirlineFlight  No
Delta ConnectionDL4031
Virgin AtlanticVS4052
19:27
AirlineFlight  No
Alaska AirlinesAS1399
Hawaiian AirlinesHA6159
Hawaiian AirlinesHA6169
Qatar AirwaysQR2009
20:59
AirlineFlight  No
Alaska AirlinesAS1007
Hawaiian AirlinesHA6174
Qatar AirwaysQR8852
VIEW FLIGHTS

Instead of flying from Ontario International you could consider a few airports that are close by. Please see that table below of alternative routes.

Alternative Direct Routes
RouteStopsDistanceFlying Time
Burbank to Seattle02 Hours 35 Minutes
Las Vegas to Seattle02 Hours 27 Minutes
Los Angeles to Seattle02 Hours 37 Minutes
Palm Springs Municipal to Seattle02 Hours 41 Minutes
San Diego to Seattle02 Hours 48 Minutes
Santa Barbara Municipal to Seattle02 Hours 32 Minutes
San Bernardino Norton Afb to Seattle02 Hours 38 Minutes
Santa Ana John Wayne to Seattle02 Hours 40 Minutes

Whilst you will find a bureau de change at Seattle-Tacoma International, we recommend you change some money before you depart if you don’t have the local currency. The exchange rates within any airport are not very favorable, so exchanging money before hand is a good idea.

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Flight Price FAQ - Ontario (ONT) to Seattle (SEA)

DIRECT Frontier Airlines
What is the cheapest direct flight one way from Ontario ONT to Seattle SEA?
The cheapest direct flight one way from Ontario ONT to Seattle SEA is £22.95 ($29 €27.57)
£22.95
$29 | €27.57
Check Latest Price
DIRECT Frontier Airlines
What is the cheapest direct return flight from Ontario ONT to Seattle SEA?
The cheapest direct return flight from Ontario ONT to Seattle SEA is £45.11 ($57 €54.19)
£45.11
$57 | €54.19
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 ONT to SEA

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Flight Info FAQ - Ontario (ONT) to Seattle (SEA)

Who flies from Ontario to Seattle?
The following airlines fly from Ontario (ONT) to Seattle (SEA): Air France, Alaska Airlines, Delta Connection, Frontier, Hawaiian Airlines, ITA Airways, Japan Airlines, KLM, Korean Air, LATAM Airlines, Qatar Airways, Virgin Atlantic, Volaris, WestJet.
How far is the flight from Ontario to Seattle?
The flight from Ontario to Seattle is 1,540KM or 957 miles.
How long does the flight from Ontario to Seattle to take?
The flight from Ontario to Seattle takes 2 Hours 37 Minutes.

Alternative Airports in United States with Connections from Ontario Airport

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Useful Information about Ontario Airport

Lounges at Ontario Airport

See all the airport lounges, locations and opening times available at Ontario Airport

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Eating and Drinking at Ontario Airport

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Duty Free Shopping at Ontario Airport

See all shops available at Ontario Airport - plan your duty free shopping in advance

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Ontario Tourist Attractions

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