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

Depart
Return
1 adult
Adults
18-64
Seniors
65+
Youths
12-17
Children
2-11
Seat Infants
under 2
Lap Infants
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 Mar 5 2016 Return: Sun Mar 6 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
2:20p
SEA
9:01p
6h 41m
1 stop
SEA
12:00a
ONT
6:34a
6h 34m
1 stop
Depart: Sat Mar 12 2016 Return: Tue Mar 15 2016 Trip spans 3 days
United
United
ONT
9:54a
SEA
3:35p
5h 41m
1 stop
SEA
1:15a
ONT
8:19a
7h 04m
1 stop
Depart: Sat Feb 13 2016 Return: Tue Feb 16 2016 Trip spans 4 days
American Airlines
American Airlines
ONT
11:40a
SEA
6:10p
6h 30m
1 stop
SEA
9:55a
ONT
4:27p
6h 32m
1 stop
Depart: Sun Feb 14 2016 Return: Wed Feb 17 2016 Trip spans 4 days
American Airlines
American Airlines
ONT
1:15a
SEA
8:45a
7h 30m
1 stop
SEA
9:55a
ONT
4:27p
6h 32m
1 stop
Depart: Wed Feb 17 2016 Return: Thu Feb 18 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:10a
ONT
6:34a
6h 24m
1 stop
Depart: Thu Feb 18 2016 Return: Fri Feb 19 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:10a
ONT
6:34a
6h 24m
1 stop
Depart: Tue Feb 23 2016 Return: Wed Feb 24 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
9:55a
ONT
4:27p
6h 32m
1 stop
Depart: Wed Feb 24 2016 Return: Sat Feb 27 2016 Trip spans 4 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:10a
ONT
6:34a
6h 24m
1 stop
Depart: Thu Feb 25 2016 Return: Sat Feb 27 2016 Trip spans 3 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
9:55a
ONT
4:27p
6h 32m
1 stop
Depart: Fri Feb 26 2016 Return: Sat Feb 27 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
9:55a
ONT
4:27p
6h 32m
1 stop
Depart: Sat Feb 27 2016 Return: Wed Mar 2 2016 Trip spans 5 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:10a
ONT
6:34a
6h 24m
1 stop
Depart: Tue Mar 1 2016 Return: Wed Mar 2 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
1:15a
SEA
8:45a
7h 30m
1 stop
SEA
12:10a
ONT
6:34a
6h 24m
1 stop
Depart: Wed Mar 2 2016 Return: Sat Mar 5 2016 Trip spans 4 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:00a
ONT
6:34a
6h 34m
1 stop
Depart: Fri Mar 4 2016 Return: Sat Mar 5 2016 Trip spans 2 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:00a
ONT
6:34a
6h 34m
1 stop
Depart: Tue Mar 8 2016 Return: Sun Mar 13 2016 Trip spans 6 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:00a
ONT
7:34a
6h 34m
1 stop
Depart: Thu Mar 10 2016 Return: Sun Mar 13 2016 Trip spans 4 days
American Airlines
American Airlines
ONT
7:35a
SEA
2:39p
7h 04m
1 stop
SEA
12:00a
ONT
7:34a
6h 34m
1 stop
Depart: Sat Apr 16 2016 Return: Sat Apr 23 2016 Trip spans 8 days
Alaska Airlines
Alaska Airlines
ONT
2:00a
SEA
4:40a
2h 40m
nonstop
SEA
3:40a
ONT
6:07a
2h 27m
nonstop
Depart: Mon Mar 14 2016 Return: Tue Mar 15 2016 Trip spans 2 days
Delta
Delta
ONT
2:00a
SEA
8:10a
6h 10m
1 stop
SEA
12:32p
ONT
6:44p
6h 12m
1 stop
Depart: Fri May 6 2016 Return: Tue May 24 2016 Trip spans 19 days
Major Airline
Major Airline
ONT
11:42a
SEA
4:13p
4h 31m
1 stop
SEA
7:24a
ONT
12:16p
4h 52m
1 stop
Depart: Mon May 16 2016 Return: Sat May 21 2016 Trip spans 6 days
Southwest
Southwest
ONT
4:15p
SEA
7:50p
3h 35m
nonstop
SEA
10:55a
ONT
2:40p
3h 45m
nonstop
Direct flights ONT to SEA on Delta
Flight # Depart ONT Arrive SEA Sun Mon Tue Wed Thu Fri Sat Valid Between
9038 10:50 am 1:30 pm Jan 30 - Mar 12
9039 11:00 am 1:35 pm Mar 16 - Mar 27
9039 11:00 am 1:35 pm Mar 15 - Mar 29
9039 11:00 am 1:35 pm Mar 13 - Mar 14
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Ontario
$186
Destination

Seattle
$186