Find Deals on Flights from Ontario to Seattle/Tacoma Intl (ONT - SEA)

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youth
12-17
Child
2-11
Seat Infant
under 2
Lap Infant
under 2
The price shown for each flight will be the average for all passengers including any infants.
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Book cheap flights from Ontario to Seattle/Tacoma Intl

(Round-trip)
Depart: Sat Aug 22 2015 Return: Thu Aug 27 2015 Trip spans 6 days
US Airways
US Airways
ONT
6:00a
SEA
12:44p
6h 44m
1 stop
SEA
1:15a
ONT
7:31a
6h 16m
1 stop
Depart: Sat Aug 29 2015 Return: Sat Sep 19 2015 Trip spans 22 days
American Airlines
American Airlines
ONT
12:40p
SEA
7:05p
6h 25m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Mon Aug 31 2015 Return: Wed Sep 2 2015 Trip spans 3 days
Delta
Delta
ONT
12:30p
SEA
6:50p
6h 20m
1 stop
SEA
12:32p
ONT
6:31p
5h 59m
1 stop
Depart: Tue Aug 25 2015 Return: Sat Aug 29 2015 Trip spans 5 days
US Airways
US Airways
ONT
8:35a
SEA
3:25p
6h 50m
1 stop
SEA
1:15a
ONT
7:31a
6h 16m
1 stop
Depart: Tue Sep 1 2015 Return: Wed Sep 2 2015 Trip spans 2 days
Delta
Delta
ONT
2:15a
SEA
7:05a
4h 50m
1 stop
SEA
12:32p
ONT
6:31p
5h 59m
1 stop
Depart: Sat Sep 5 2015 Return: Sat Sep 12 2015 Trip spans 8 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:25p
6h 50m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Tue Sep 8 2015 Return: Tue Sep 15 2015 Trip spans 8 days
Delta
Delta
ONT
6:15a
SEA
10:53a
4h 38m
1 stop
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
Depart: Wed Sep 9 2015 Return: Fri Sep 11 2015 Trip spans 3 days
Delta
Delta
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
SEA
7:20a
ONT
1:34p
6h 14m
1 stop
Depart: Sat Sep 12 2015 Return: Mon Sep 28 2015 Trip spans 17 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Sun Sep 13 2015 Return: Fri Sep 18 2015 Trip spans 6 days
Delta
Delta
ONT
2:15a
SEA
8:23a
6h 08m
1 stop
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
Depart: Mon Sep 14 2015 Return: Tue Sep 15 2015 Trip spans 2 days
Delta
Delta
ONT
6:15a
SEA
10:53a
4h 38m
1 stop
SEA
7:20a
ONT
1:42p
6h 22m
1 stop
Depart: Tue Sep 15 2015 Return: Sat Sep 19 2015 Trip spans 5 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Wed Sep 16 2015 Return: Sat Sep 19 2015 Trip spans 4 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Sat Sep 19 2015 Return: Tue Sep 22 2015 Trip spans 4 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
7:25a
ONT
2:06p
6h 41m
1 stop
Depart: Sun Sep 20 2015 Return: Fri Oct 2 2015 Trip spans 13 days
Delta
Delta
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
SEA
12:32p
ONT
6:34p
6h 02m
1 stop
Depart: Mon Sep 21 2015 Return: Thu Sep 24 2015 Trip spans 4 days
Delta
Delta
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
Depart: Tue Sep 22 2015 Return: Tue Oct 6 2015 Trip spans 15 days
American Airlines
American Airlines
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
7:25a
ONT
2:06p
6h 41m
1 stop
Depart: Sun Sep 6 2015 Return: Sun Sep 13 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
ONT
2:20p
SEA
4:45p
2h 25m
nonstop
SEA
3:05a
ONT
5:35a
2h 30m
nonstop
Depart: Sat Aug 15 2015 Return: Fri Aug 28 2015 Trip spans 14 days
United
United
ONT
9:59a
SEA
5:23p
7h 24m
1 stop
SEA
3:21a
ONT
8:12a
4h 51m
1 stop
Depart: Wed Dec 9 2015 Return: Tue Dec 29 2015 Trip spans 21 days
Southwest
Southwest
ONT
12:05p
SEA
5:20p
5h 15m
1 stop
SEA
2:40a
ONT
6:40a
4h 00m
1 stop
Direct flights ONT to SEA on Delta
Flight # Depart ONT Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
7570 6:00 am 8:43 am Aug 15 - Aug 22
7611 6:00 am 8:44 am Aug 23 - Sep 26
7631 6:00 am 8:43 am Aug 1 - Aug 14
7631 6:00 am 8:43 am Aug 16 - Aug 21
7574 10:25 am 12:50 pm Aug 22 - Aug 22
7574 10:25 am 12:50 pm Aug 9 - Aug 15
7574 10:25 am 12:50 pm Aug 7 - Aug 14
7574 10:25 am 12:50 pm Aug 8 - Aug 13
7628 10:25 am 12:55 pm Aug 26 - Aug 29
7628 10:25 am 12:55 pm Sep 5 - Sep 5
7628 10:25 am 12:55 pm Sep 2 - Sep 14
7628 10:25 am 12:55 pm Aug 23 - Sep 1
7628 10:25 am 12:50 pm Aug 21 - Aug 21
7628 10:25 am 12:50 pm Aug 17 - Aug 19
7628 10:25 am 12:50 pm Aug 16 - Aug 20
Airports
Origin

Ontario
$191
Destination

Seattle
$191