Cheap flights from Ontario to Seattle

Search for the cheapest air tickets from Ontario to Seattle

Recently booked flights from Ontario to Seattle

From
Ontario
To
Seattle
Depart date
10.09.2025
Price
$408 / 1485ر.ق

Average ticket prices for flights from Ontario to Seattle by month

Find the cheapest time to fly from Ontario to Seattle.

September
October
December
January
February
April

Airlines Flying to Seattle from Ontario

Flight schedule Ontario to Seattle

06:00 → 08:45

direct

logo Alaska Airlines 1091
ONT — SEA
M T W T F S S
08:13 → 11:11

direct

logo Frontier Airlines 3164
ONT — SEA
- - - T - - S
08:43 → 11:41

direct

logo Frontier Airlines 3164
ONT — SEA
M - - - F - -
11:39 → 14:22

direct

logo Alaska Airlines 1111
ONT — SEA
- - W T F - S
11:39 → 14:19

direct

logo Alaska Airlines 1111
ONT — SEA
M T - T - S -
15:06 → 17:46

direct

logo Alaska Airlines 1119
ONT — SEA
M T W T F S S
19:40 → 22:30

direct

logo Alaska Airlines 1087
ONT — SEA
- - - T F - S
19:47 → 22:37

direct

logo Alaska Airlines 1087
ONT — SEA
M - - - - - -
05:20 → 11:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:20 → 15:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:20 → 12:35

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:25 → 10:15

1 stop

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

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
05:45 → 11:00

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
05:45 → 11:25

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
05:45 → 11:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
06:00 → 12:27

1 stop

United Airlines logo United Airlines
ONT — SEA
- T W - F S -
06:00 → 12:39

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M T W T F S S
06:00 → 12:33

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- - - T F S S
06:00 → 11:05

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- - - - - S -
06:00 → 12:07

1 stop

United Airlines logo United Airlines
ONT — SEA
M T W T F S S
06:00 → 11:35

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
06:00 → 08:45

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
M T W T F S S
06:20 → 12:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
06:25 → 10:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
06:50 → 11:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
08:05 → 13:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
08:13 → 11:11

direct

Frontier Airlines logo Frontier Airlines
ONT — SEA
- - - T - - S
08:15 → 13:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
08:15 → 13:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
08:43 → 11:41

direct

Frontier Airlines logo Frontier Airlines
ONT — SEA
M - - - F - -
09:15 → 15:35

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
09:16 → 15:31

1 stop

Frontier Airlines logo Frontier Airlines
ONT — SEA
- - - T - - -
09:20 → 15:15

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
09:25 → 14:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
09:36 → 14:24

1 stop

United Airlines logo United Airlines
ONT — SEA
M - - T F - -
09:36 → 16:06

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - T F - -
09:50 → 16:45

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M - - T F S -
09:50 → 14:39

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M - - T F - S
09:50 → 16:40

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M - - T F S S
09:50 → 14:48

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M - - - - - S
09:55 → 14:39

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- T W - - - -
09:55 → 15:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
09:55 → 15:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
09:55 → 16:40

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- T W - - - -
09:55 → 16:45

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- T W - - - -
10:00 → 14:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
10:00 → 15:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
10:25 → 21:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
11:39 → 14:19

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
M T - T - S -
11:39 → 14:22

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
- - W T F - S
12:35 → 18:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
13:10 → 20:54

1 stop

American Airlines logo American Airlines
ONT — SEA
M - W T F - S
13:15 → 18:24

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
M - - T F - S
13:15 → 18:36

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- - - - - S -
13:15 → 18:36

1 stop

Delta Air Lines logo Delta Air Lines
ONT — SEA
- T W - - - -
13:25 → 18:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
13:25 → 19:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
13:42 → 18:49

1 stop

United Airlines logo United Airlines
ONT — SEA
M T W - - S S
13:42 → 19:14

1 stop

United Airlines logo United Airlines
ONT — SEA
M - - - - S -
13:53 → 18:45

1 stop

United Airlines logo United Airlines
ONT — SEA
M T - T F - S
13:53 → 19:14

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - T F - -
13:55 → 19:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
14:10 → 19:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
14:35 → 18:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
14:55 → 21:15

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
15:00 → 19:55

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
15:05 → 19:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
15:06 → 17:46

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
M T W T F S S
15:15 → 20:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
15:15 → 21:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
15:45 → 21:45

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
16:40 → 21:00

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
16:55 → 23:10

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - S -
18:20 → 23:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
M - - T F - -
18:25 → 23:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
18:35 → 23:30

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
18:36 → 23:15

1 stop

United Airlines logo United Airlines
ONT — SEA
- T W T F - S
18:36 → 23:42

1 stop

United Airlines logo United Airlines
ONT — SEA
- - - T F - -
18:50 → 22:59

1 stop

United Airlines logo United Airlines
ONT — SEA
M T W - F S S
19:10 → 00:05

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- T W - - - -
19:15 → 23:40

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S
19:40 → 22:30

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
- - - T F - S
19:47 → 22:37

direct

Alaska Airlines logo Alaska Airlines
ONT — SEA
M - - - - - -
20:25 → 01:20

1 stop

Southwest Airlines logo Southwest Airlines
ONT — SEA
- - - - - - S