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: Wed Sep 23 2015 Return: Sat Sep 26 2015 Trip spans 4 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 Sep 26 2015 Return: Tue Sep 29 2015 Trip spans 4 days
Alaska Airlines
Alaska Airlines
ONT
2:20p
SEA
4:45p
2h 25m
nonstop
SEA
3:05a
ONT
5:34a
2h 29m
nonstop
Depart: Tue Sep 15 2015 Return: Tue Sep 22 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: Wed Sep 16 2015 Return: Sat Sep 19 2015 Trip spans 4 days
United
United
ONT
1:00a
SEA
7:14a
6h 14m
1 stop
SEA
10:00a
ONT
2:31p
4h 31m
1 stop
Depart: Sat Sep 19 2015 Return: Sat Sep 26 2015 Trip spans 8 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 30 2015 Return: Sat Oct 3 2015 Trip spans 4 days
US Airways
US Airways
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Mon Sep 21 2015 Return: Tue Sep 29 2015 Trip spans 9 days
United
United
ONT
2:00p
SEA
9:10p
7h 10m
1 stop
SEA
1:15a
ONT
5:57a
4h 42m
1 stop
Depart: Tue Sep 22 2015 Return: Sat Sep 26 2015 Trip spans 5 days
United
United
ONT
5:07p
SEA
9:09p
4h 02m
1 stop
SEA
7:39a
ONT
12:30p
4h 51m
1 stop
Depart: Thu Sep 24 2015 Return: Thu Oct 1 2015 Trip spans 8 days
United
United
ONT
1:00p
SEA
7:36p
6h 36m
1 stop
SEA
1:19p
ONT
8:29p
7h 10m
1 stop
Depart: Mon Sep 28 2015 Return: Thu Oct 1 2015 Trip spans 4 days
United
United
ONT
1:00p
SEA
5:45p
4h 45m
1 stop
SEA
1:19p
ONT
8:29p
7h 10m
1 stop
Depart: Tue Sep 29 2015 Return: Thu Oct 1 2015 Trip spans 3 days
United
United
ONT
6:27a
SEA
12:38p
6h 11m
1 stop
SEA
1:19p
ONT
8:29p
7h 10m
1 stop
Depart: Thu Oct 1 2015 Return: Sat Oct 3 2015 Trip spans 3 days
United
United
ONT
1:00p
SEA
5:45p
4h 45m
1 stop
SEA
3:17a
ONT
8:09a
4h 52m
1 stop
Depart: Fri Oct 2 2015 Return: Sat Oct 3 2015 Trip spans 2 days
United
United
ONT
2:01p
SEA
9:29p
7h 28m
1 stop
SEA
3:17a
ONT
8:09a
4h 52m
1 stop
Depart: Sat Oct 3 2015 Return: Tue Oct 6 2015 Trip spans 4 days
US Airways
US Airways
ONT
6:00a
SEA
12:49p
6h 49m
1 stop
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
Depart: Tue Oct 20 2015 Return: Wed Oct 21 2015 Trip spans 2 days
United
United
ONT
4:57p
SEA
9:29p
4h 32m
1 stop
SEA
1:15a
ONT
5:57a
4h 42m
1 stop
Depart: Thu Sep 10 2015 Return: Tue Sep 15 2015 Trip spans 6 days
United
United
ONT
3:01p
SEA
7:43p
4h 42m
1 stop
SEA
1:25a
ONT
5:54a
4h 29m
1 stop
Depart: Sat Sep 12 2015 Return: Wed Sep 23 2015 Trip spans 12 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: Mon Oct 5 2015 Return: Wed Oct 7 2015 Trip spans 3 days
Alaska Airlines
Alaska Airlines
ONT
2:00a
SEA
4:40a
2h 40m
nonstop
SEA
4:25p
ONT
6:50p
2h 25m
nonstop
Depart: Wed Oct 21 2015 Return: Wed Oct 28 2015 Trip spans 8 days
Delta
Delta
ONT
2:15a
SEA
8:25a
6h 10m
1 stop
SEA
12:32p
ONT
5:01p
4h 29m
1 stop
Depart: Sat Oct 31 2015 Return: Sat Nov 7 2015 Trip spans 8 days
Southwest
Southwest
ONT
12:10p
SEA
3:50p
3h 40m
nonstop
SEA
12:55a
ONT
5:00a
4h 05m
nonstop
Direct flights ONT to SEA on Delta
Flight # Depart ONT Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
7503 6:00 am 8:49 am Sep 27 - Oct 1
7554 6:00 am 8:40 am Oct 8 - Oct 11
7554 6:00 am 8:40 am Oct 4 - Oct 9
7554 6:00 am 8:40 am Oct 2 - Oct 7
7558 6:00 am 8:40 am Oct 3 - Oct 3
7558 6:00 am 8:40 am Oct 10 - Oct 10
7611 6:00 am 8:44 am Sep 1 - Sep 26
7628 10:25 am 12:55 pm Sep 1 - Sep 13
7628 10:25 am 1:04 pm Oct 9 - Oct 9
7628 10:25 am 1:04 pm Oct 6 - Oct 13
7628 10:25 am 1:04 pm Oct 5 - Oct 14
7628 10:25 am 1:04 pm Sep 28 - Sep 28
7628 10:25 am 1:04 pm Sep 27 - Oct 4
7628 10:25 am 12:55 pm Sep 25 - Sep 26
7628 10:25 am 12:55 pm Sep 23 - Sep 24
7628 10:25 am 12:55 pm Sep 14 - Sep 21
7628 10:25 am 12:55 pm Sep 12 - Sep 22
Airports
Origin

Ontario
$168
Destination

Seattle
$168