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Find Deals on Flights 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: Tue Sep 1 2015 Return: Tue Sep 8 2015 Trip spans 8 days
Delta
Delta
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Sat Sep 12 2015 Return: Wed Sep 16 2015 Trip spans 5 days
US Airways
US Airways
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
Depart: Wed Sep 16 2015 Return: Sat Sep 26 2015 Trip spans 11 days
American Airlines
American Airlines
SEA
11:00a
ONT
4:57p
5h 57m
1 stop
ONT
8:35a
SEA
3:30p
6h 55m
1 stop
Depart: Wed Sep 2 2015 Return: Tue Sep 8 2015 Trip spans 7 days
Delta
Delta
SEA
6:20a
ONT
1:42p
7h 22m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Thu Sep 17 2015 Return: Sun Sep 20 2015 Trip spans 4 days
US Airways
US Airways
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Sat Sep 19 2015 Return: Sun Sep 20 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Tue Sep 22 2015 Return: Tue Sep 29 2015 Trip spans 8 days
Delta
Delta
SEA
12:32p
ONT
6:31p
5h 59m
1 stop
ONT
2:15a
SEA
8:23a
6h 08m
1 stop
Depart: Fri Sep 25 2015 Return: Sun Sep 27 2015 Trip spans 3 days
US Airways
US Airways
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Sat Sep 26 2015 Return: Sun Sep 27 2015 Trip spans 2 days
American Airlines
American Airlines
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Tue Sep 29 2015 Return: Tue Oct 6 2015 Trip spans 8 days
Delta
Delta
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
ONT
6:15a
SEA
2:03p
7h 48m
1 stop
Depart: Wed Sep 30 2015 Return: Sun Oct 4 2015 Trip spans 5 days
Delta
Delta
SEA
2:20p
ONT
6:31p
4h 11m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Thu Oct 1 2015 Return: Sat Oct 3 2015 Trip spans 3 days
US Airways
US Airways
SEA
1:15a
ONT
7:33a
6h 18m
1 stop
ONT
2:30a
SEA
9:29a
6h 59m
1 stop
Depart: Fri Oct 2 2015 Return: Sat Oct 3 2015 Trip spans 2 days
Delta
Delta
SEA
12:32p
ONT
6:31p
5h 59m
1 stop
ONT
2:15a
SEA
8:25a
6h 10m
1 stop
Depart: Sat Oct 3 2015 Return: Sun Oct 4 2015 Trip spans 2 days
Delta
Delta
SEA
12:32p
ONT
5:06p
4h 34m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Sun Oct 4 2015 Return: Thu Oct 8 2015 Trip spans 5 days
Delta
Delta
SEA
2:15p
ONT
6:31p
4h 16m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Mon Oct 5 2015 Return: Thu Oct 8 2015 Trip spans 4 days
American Airlines
American Airlines
SEA
7:25a
ONT
2:22p
6h 57m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Tue Oct 6 2015 Return: Thu Oct 8 2015 Trip spans 3 days
American Airlines
American Airlines
SEA
7:25a
ONT
2:06p
6h 41m
1 stop
ONT
3:25p
SEA
9:33p
6h 08m
1 stop
Depart: Wed Oct 7 2015 Return: Thu Oct 8 2015 Trip spans 2 days
Delta
Delta
SEA
2:15p
ONT
6:31p
4h 16m
1 stop
ONT
2:15a
SEA
7:00a
4h 45m
1 stop
Depart: Tue Jul 21 2015 Return: Tue Jul 28 2015 Trip spans 8 days
United
United
SEA
1:20a
ONT
6:01a
4h 41m
1 stop
ONT
1:08p
SEA
7:24p
6h 16m
1 stop
Depart: Tue Oct 20 2015 Return: Tue Oct 27 2015 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
4:25p
ONT
6:50p
2h 25m
nonstop
ONT
2:20p
SEA
4:54p
2h 34m
nonstop
Direct flights SEA to ONT on Delta
Flight # Depart SEA Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
7577 2:30 pm 5:15 pm Jun 27 - Aug 22
Airports
Origin

Seattle
$191
Destination

Ontario
$191