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

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Seattle/Tacoma Intl to Ontario

(Round-trip)
Depart: Sat May 2 2015 Return: Fri May 8 2015 Trip spans 7 days
United
United
SEA
9:05a
ONT
2:47p
5h 42m
1 stop
ONT
1:50p
SEA
6:02p
4h 12m
1 stop
Depart: Wed Jun 10 2015 Return: Tue Jun 16 2015 Trip spans 7 days
American Airlines
American Airlines
SEA
1:15a
ONT
7:31a
6h 16m
1 stop
ONT
3:25p
SEA
9:29p
6h 04m
1 stop
Depart: Tue Sep 1 2015 Return: Tue Sep 8 2015 Trip spans 8 days
Delta
Delta
SEA
6:15a
ONT
1:39p
7h 24m
1 stop
ONT
2:15p
SEA
6:55p
4h 40m
1 stop
Depart: Mon May 4 2015 Return: Tue May 5 2015 Trip spans 2 days
United
United
SEA
2:40p
ONT
8:09p
5h 29m
1 stop
ONT
1:30a
SEA
8:41a
7h 11m
1 stop
Depart: Tue May 5 2015 Return: Fri May 8 2015 Trip spans 4 days
United
United
SEA
1:28a
ONT
6:15a
4h 47m
1 stop
ONT
12:40p
SEA
6:02p
5h 22m
1 stop
Depart: Wed May 6 2015 Return: Fri May 8 2015 Trip spans 3 days
United
United
SEA
1:24a
ONT
6:13a
4h 49m
1 stop
ONT
1:50p
SEA
7:41p
5h 51m
1 stop
Depart: Thu May 7 2015 Return: Fri May 8 2015 Trip spans 2 days
United
United
SEA
1:24a
ONT
6:13a
4h 49m
1 stop
ONT
1:50p
SEA
7:41p
5h 51m
1 stop
Depart: Sat May 9 2015 Return: Mon May 11 2015 Trip spans 3 days
United
United
SEA
5:10a
ONT
12:08p
6h 58m
1 stop
ONT
1:50p
SEA
7:01p
5h 11m
1 stop
Depart: Sun May 10 2015 Return: Mon May 11 2015 Trip spans 2 days
United
United
SEA
4:50a
ONT
12:10p
7h 20m
1 stop
ONT
1:50p
SEA
6:02p
4h 12m
1 stop
Depart: Mon May 11 2015 Return: Tue May 12 2015 Trip spans 2 days
United
United
SEA
9:55a
ONT
2:47p
4h 52m
1 stop
ONT
3:17p
SEA
8:44p
5h 27m
1 stop
Depart: Tue May 12 2015 Return: Thu May 14 2015 Trip spans 3 days
United
United
SEA
6:50a
ONT
1:20p
6h 30m
1 stop
ONT
1:50p
SEA
7:01p
5h 11m
1 stop
Depart: Wed May 13 2015 Return: Thu May 14 2015 Trip spans 2 days
United
United
SEA
9:56a
ONT
2:47p
4h 51m
1 stop
ONT
12:40p
SEA
6:02p
5h 22m
1 stop
Depart: Thu May 14 2015 Return: Sat May 16 2015 Trip spans 3 days
United
United
SEA
1:24a
ONT
6:13a
4h 49m
1 stop
ONT
1:50p
SEA
6:40p
4h 50m
1 stop
Depart: Sat May 16 2015 Return: Sat May 23 2015 Trip spans 8 days
United
United
SEA
1:24a
ONT
6:13a
4h 49m
1 stop
ONT
1:50p
SEA
8:44p
6h 54m
1 stop
Depart: Mon May 18 2015 Return: Wed May 20 2015 Trip spans 3 days
United
United
SEA
11:44a
ONT
4:25p
4h 41m
1 stop
ONT
1:50p
SEA
7:01p
5h 11m
1 stop
Depart: Tue May 19 2015 Return: Sat May 23 2015 Trip spans 5 days
United
United
SEA
1:58p
ONT
8:10p
6h 12m
1 stop
ONT
1:50p
SEA
8:44p
6h 54m
1 stop
Depart: Wed May 20 2015 Return: Sat May 23 2015 Trip spans 4 days
United
United
SEA
1:24a
ONT
6:13a
4h 49m
1 stop
ONT
1:50p
SEA
8:44p
6h 54m
1 stop
Depart: Sat May 23 2015 Return: Wed May 27 2015 Trip spans 5 days
United
United
SEA
2:54p
ONT
8:10p
5h 16m
1 stop
ONT
3:17p
SEA
8:44p
5h 27m
1 stop
Depart: Sun May 3 2015 Return: Thu May 14 2015 Trip spans 12 days
US Airways
US Airways
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
3:25p
SEA
9:36p
6h 11m
1 stop
Depart: Tue Jun 30 2015 Return: Tue Jul 7 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
ONT
6:51p
2h 26m
nonstop
ONT
2:00a
SEA
4:45a
2h 45m
nonstop
Direct flights SEA to ONT on Delta
Flight # Depart SEA Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
7535 2:20 pm 4:58 pm May 4 - Jun 6
Airports
Origin

Seattle
$185
Destination

Ontario
$185