Cheap flights from Ontario to Seattle

Search for the cheapest air tickets from Ontario to Seattle
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Recently booked flights from Ontario to Seattle

From
Ontario
To
Seattle
Depart date
16.07.2026
Price
$95
From
Ontario
To
Seattle
Depart date
04.07.2026
Price
$139
From
Ontario
To
Seattle
Depart date
05.07.2026
Price
$139
From
Ontario
To
Seattle
Depart date
06.07.2026
Price
$139
From
Ontario
To
Seattle
Depart date
07.07.2026
Price
$139

Average ticket prices for flights from Ontario to Seattle by month

Find the cheapest time to fly from Ontario to Seattle.

June
July
August
September
October

Airlines Flying to Seattle from Ontario

Flight schedule Ontario to Seattle

16:03 → 18:57

direct

logo Frontier Airlines 2275
ONT — SEA
M T W T F S S
19:30 → 23:30

direct

logo Southwest Airlines 3082
ONT — SEA
M - - T F - -
12:55 → 17:55

direct

logo Southwest Airlines 3585
ONT — SEA
- - - - - - S
13:00 → 18:36

direct

logo Delta 3172
ONT — SEA
- - - - - S -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
- T - - F - -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
- - - - F - -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
M T W - F - S
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
- - - - - - S
13:00 → 18:36

direct

logo Delta 3172
ONT — SEA
- - - T - - -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
- - - T - - -
09:40 → 14:40

direct

logo Delta 1302
ONT — SEA
M T W - F - -
13:00 → 18:36

direct

logo Delta 3172
ONT — SEA
- - - T - - S
09:40 → 16:30

direct

logo Delta 1302
ONT — SEA
- - W - F - -
13:00 → 18:36

direct

logo Delta 3172
ONT — SEA
M T W - - - -
09:40 → 16:30

direct

logo Delta 1302
ONT — SEA
- - - T - - -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
- - - - - S -
06:00 → 12:52

direct

logo Delta 2708
ONT — SEA
M - - - - - -
09:40 → 14:40

direct

logo Delta 1302
ONT — SEA
- - - T - - -
13:00 → 18:36

direct

logo Delta 3172
ONT — SEA
M - W - F - -
06:00 → 12:34

direct

logo United Airlines 2363
ONT — SEA
- - - T - - -
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
- - - - - - S
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
M - - - - - -
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
- - - T - - -
06:00 → 12:34

direct

logo United Airlines 2363
ONT — SEA
M T - - - - S
06:00 → 12:34

direct

logo United Airlines 2363
ONT — SEA
- - - - - S -
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
- T - - - - -
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
- - - - - S -
06:00 → 12:34

direct

logo United Airlines 2363
ONT — SEA
- - - - F - -
06:00 → 12:34

direct

logo United Airlines 2363
ONT — SEA
- - W - - - -
13:50 → 18:47

direct

logo United Airlines 1375
ONT — SEA
- - W - - - -
13:50 → 19:03

direct

logo United Airlines 1375
ONT — SEA
- - - - F - -
05:15 → 11:40

direct

logo Southwest Airlines 864
ONT — SEA
M - - T F - -
18:40 → 23:55

direct

logo Southwest Airlines 3170
ONT — SEA
- - - - - - S
12:55 → 18:15

direct

logo Southwest Airlines 2433
ONT — SEA
- - - - - - S
05:30 → 10:30

direct

logo Southwest Airlines 3150
ONT — SEA
- T W - - - -
18:15 → 23:10

direct

logo Southwest Airlines 3170
ONT — SEA
- - - - - S -
08:00 → 13:45

direct

logo Southwest Airlines 3166
ONT — SEA
- - - - - - S
10:50 → 16:20

direct

logo Southwest Airlines 3162
ONT — SEA
M - - T F - -
05:15 → 11:15

direct

logo Southwest Airlines 864
ONT — SEA
- T W - - - -
06:15 → 10:20

direct

logo Southwest Airlines 833
ONT — SEA
- - - - - - S
19:20 → 00:40

direct

logo Southwest Airlines 3160
ONT — SEA
- T W - - - -
08:00 → 13:50

direct

logo Southwest Airlines 4421
ONT — SEA
M - - T F - -
05:30 → 10:25

direct

logo Southwest Airlines 3150
ONT — SEA
M - - T F - -
18:30 → 00:35

direct

logo Southwest Airlines 3159
ONT — SEA
- - - - - S -
05:30 → 11:15

direct

logo Southwest Airlines 4460
ONT — SEA
- - - - - S -
18:25 → 23:30

direct

logo Southwest Airlines 3170
ONT — SEA
- T W - - - -
19:00 → 01:10

direct

logo Southwest Airlines 5082
ONT — SEA
- - - - - - S
05:15 → 13:35

direct

logo Southwest Airlines 864
ONT — SEA
- T W - - - -
18:30 → 23:50

direct

logo Southwest Airlines 3170
ONT — SEA
M - - T F - -
06:15 → 11:05

direct

logo Southwest Airlines 3042
ONT — SEA
M - - T F - -
09:20 → 13:55

direct

logo Southwest Airlines 3162
ONT — SEA
- - - - - S -
16:35 → 23:30

direct

logo Southwest Airlines 4538
ONT — SEA
- T W - - - -
20:45 → 01:40

direct

logo Southwest Airlines 3160
ONT — SEA
M - - T F - -
18:35 → 00:05

direct

logo Southwest Airlines 3164
ONT — SEA
M - - T F - -
15:40 → 21:00

direct

logo Southwest Airlines 670
ONT — SEA
M - - T F - -
05:40 → 10:25

direct

logo Southwest Airlines 3150
ONT — SEA
- - - - - S -
14:35 → 19:25

direct

logo Southwest Airlines 300
ONT — SEA
- - - - - - S
18:35 → 00:30

direct

logo Southwest Airlines 2213
ONT — SEA
- T W - - - -
16:55 → 21:50

direct

logo Southwest Airlines 3845
ONT — SEA
- - - - - S -
20:30 → 01:05

direct

logo Southwest Airlines 2949
ONT — SEA
- - - - - - S
05:15 → 11:15

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
05:15 → 11:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:15 → 13:35

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
05:30 → 10:25

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:30 → 10:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
05:30 → 11:15

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
05:40 → 10:25

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
06:00 → 12:34

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - T - - -
06:00 → 12:34

1 stop

United Airlines logo United Airlines
ONT — SEA
- - W - - - -
06:00 → 12:34

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - - F - -
06:00 → 12:34

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - - - S -
06:00 → 12:34

1 stop

United Airlines logo United Airlines
ONT — SEA
M T - - - - S
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
- - - T - - -
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
- T - - F - -
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
- - - - - S -
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
M - - - - - -
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
- - - - F - -
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
M T W - F - S
06:00 → 12:52

1 stop

Delta logo Delta
ONT — SEA
- - - - - - S
06:15 → 10:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
06:15 → 11:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
08:00 → 13:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
08:00 → 13:50

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
09:20 → 13:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
09:40 → 14:40

1 stop

Delta logo Delta
ONT — SEA
M T W - F - -
09:40 → 14:40

1 stop

Delta logo Delta
ONT — SEA
- - - T - - -
09:40 → 16:30

1 stop

Delta logo Delta
ONT — SEA
- - W - F - -
09:40 → 16:30

1 stop

Delta logo Delta
ONT — SEA
- - - T - - -
10:50 → 16:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
12:55 → 17:55

direct

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
12:55 → 18:15

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
13:00 → 18:36

1 stop

Delta logo Delta
ONT — SEA
- - - T - - -
13:00 → 18:36

1 stop

Delta logo Delta
ONT — SEA
M T W - - - -
13:00 → 18:36

1 stop

Delta logo Delta
ONT — SEA
- - - T - - S
13:00 → 18:36

1 stop

Delta logo Delta
ONT — SEA
M - W - F - -
13:00 → 18:36

1 stop

Delta logo Delta
ONT — SEA
- - - - - S -
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
- - W - - - -
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - T - - -
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - - - - S
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
M - - - - - -
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
- T - - - - -
13:50 → 18:47

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - - - S -
13:50 → 19:03

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - - F - -
14:35 → 19:25

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
15:40 → 21:00

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
16:03 → 18:57

direct

Frontier Airlines logo Frontier Airlines
ONT — SEA
M T W T F S S
16:35 → 23:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
16:55 → 21:50

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
18:15 → 23:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
18:25 → 23:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
18:30 → 00:35

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
18:30 → 23:50

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
18:35 → 00:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
18:35 → 00:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
18:40 → 23:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
19:00 → 01:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
19:20 → 00:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
19:30 → 23:30

direct

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
20:30 → 01:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
20:45 → 01:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -