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

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 Seattle/Tacoma Intl to Ontario

(Round-trip)
Depart: Wed Mar 8 2017 Return: Tue Mar 14 2017 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
7:15a
ONT
9:44a
2h 29m
nonstop
ONT
7:45a
SEA
10:17a
2h 32m
nonstop
Depart: Sun Mar 12 2017 Return: Thu Mar 16 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
11:25p
ONT
1:52a
2h 27m
nonstop
ONT
3:45a
SEA
6:17a
2h 32m
nonstop
Depart: Thu Apr 27 2017 Return: Wed May 3 2017 Trip spans 7 days
United
United
SEA
1:57a
ONT
6:11a
4h 14m
1 stop
ONT
4:05p
SEA
9:13p
5h 08m
1 stop
Depart: Fri Mar 10 2017 Return: Tue Mar 14 2017 Trip spans 4 days
Delta
Delta
SEA
1:25p
ONT
5:51p
4h 26m
1 stop
ONT
2:00a
SEA
7:00a
5h 00m
1 stop
Depart: Sat Feb 25 2017 Return: Tue Feb 28 2017 Trip spans 4 days
American Airlines
American Airlines
SEA
12:00a
ONT
6:46a
6h 46m
1 stop
ONT
11:30a
SEA
6:34p
7h 04m
1 stop
Depart: Sat Mar 11 2017 Return: Tue Mar 14 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
SEA
7:15a
ONT
9:44a
2h 29m
nonstop
ONT
11:25a
SEA
2:03p
2h 38m
nonstop
Depart: Fri Mar 17 2017 Return: Mon Mar 20 2017 Trip spans 4 days
Major Airline
Major Airline
SEA
6:00a
ONT
8:31a
2h 31m
nonstop
ONT
3:45a
SEA
6:20a
2h 35m
nonstop
Depart: Mon Mar 13 2017 Return: Thu Mar 16 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
3:25a
ONT
5:52a
2h 27m
nonstop
ONT
7:45a
SEA
10:17a
2h 32m
nonstop
Depart: Wed Mar 22 2017 Return: Mon Mar 27 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
11:25p
ONT
1:52a
2h 27m
nonstop
ONT
3:45a
SEA
6:20a
2h 35m
nonstop
Depart: Tue Mar 14 2017 Return: Fri Mar 17 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
8:15a
ONT
10:44a
2h 29m
nonstop
ONT
7:45a
SEA
10:20a
2h 35m
nonstop
Depart: Sun Mar 26 2017 Return: Tue Apr 4 2017 Trip spans 10 days
Major Airline
Major Airline
SEA
11:25p
ONT
1:54a
2h 29m
nonstop
ONT
9:30a
SEA
12:12p
2h 42m
nonstop
Depart: Sun Mar 5 2017 Return: Tue Mar 14 2017 Trip spans 9 days
United
United
SEA
1:00a
ONT
5:13a
4h 13m
1 stop
ONT
1:45a
SEA
7:19a
5h 34m
1 stop
Depart: Wed Mar 15 2017 Return: Fri Mar 17 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
SEA
8:15a
ONT
10:44a
2h 29m
nonstop
ONT
1:30p
SEA
4:12p
2h 42m
nonstop
Depart: Thu Mar 16 2017 Return: Fri Mar 17 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
3:25a
ONT
5:52a
2h 27m
nonstop
ONT
1:30p
SEA
4:12p
2h 42m
nonstop
Depart: Mon Feb 27 2017 Return: Thu Mar 9 2017 Trip spans 11 days
United
United
SEA
12:55a
ONT
5:13a
4h 18m
1 stop
ONT
7:30a
SEA
1:15p
5h 45m
1 stop
Depart: Tue Mar 21 2017 Return: Wed Mar 22 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
3:25a
ONT
5:52a
2h 27m
nonstop
ONT
7:45a
SEA
10:17a
2h 32m
nonstop
Depart: Mon Mar 6 2017 Return: Wed Mar 8 2017 Trip spans 3 days
Major Airline
Major Airline
SEA
4:55a
ONT
7:25a
2h 30m
nonstop
ONT
1:00a
SEA
3:39a
2h 39m
nonstop
Depart: Thu Mar 2 2017 Return: Tue Mar 7 2017 Trip spans 6 days
Delta
Delta
SEA
1:26p
ONT
6:10p
4h 44m
1 stop
ONT
1:00a
SEA
7:26a
6h 26m
1 stop
Depart: Sat Mar 18 2017 Return: Tue Mar 21 2017 Trip spans 4 days
United
United
SEA
12:00p
ONT
4:49p
4h 49m
1 stop
ONT
4:10p
SEA
9:13p
5h 03m
1 stop
Depart: Tue Mar 28 2017 Return: Tue Apr 4 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
3:25a
ONT
5:54a
2h 29m
nonstop
ONT
1:30p
SEA
4:12p
2h 42m
nonstop
Direct flights SEA to ONT on American Airlines
Flight # Depart SEA Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
7025 7:25 am 9:52 am Mar 12 - Mar 19
7025 7:25 am 9:54 am Mar 17 - Mar 17
7025 7:25 am 9:52 am Mar 18 - Mar 25
7025 7:25 am 9:54 am Mar 15 - Mar 20
7025 7:25 am 9:52 am Mar 23 - Mar 30
7025 7:25 am 9:54 am Mar 24 - Mar 28
7025 7:25 am 9:52 am Mar 31 - Apr 7
7025 7:25 am 9:52 am Apr 1 - Apr 5
7025 7:30 am 9:58 am Feb 23 - Mar 1
7025 7:30 am 9:58 am Feb 24 - Mar 2
7025 7:30 am 9:58 am Mar 7 - Mar 10
7025 7:30 am 9:58 am Mar 11 - Mar 11
7025 7:30 am 9:58 am Mar 3 - Mar 8
7637 12:15 pm 2:44 pm Mar 12 - Mar 15
7637 12:15 pm 2:44 pm Mar 3 - Mar 11
7005 2:00 pm 4:31 pm Mar 20 - Mar 26
7005 2:00 pm 4:31 pm Mar 30 - Apr 6
7005 2:00 pm 4:31 pm Mar 29 - Apr 5
7005 2:00 pm 4:31 pm Mar 12 - Mar 19
7005 2:00 pm 4:31 pm Mar 13 - Mar 17
7005 2:00 pm 4:31 pm Mar 22 - Mar 28
7005 2:55 pm 5:25 pm Feb 25 - Mar 4
7005 2:55 pm 5:25 pm Mar 5 - Mar 10
7005 2:55 pm 5:24 pm Feb 23 - Mar 9
7005 2:55 pm 5:25 pm Mar 11 - Mar 11
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Seattle
$137
Destination

Ontario
$137
Airlines Airline reviews

49 travelers who booked a flight from Seattle to Ontario rated their chosen airlines with an average of 8.4.

Overall
8.7
Boarding
8.6
Crew
8.7
Comfort
8.4
Food
7.9
Entertainment
7.2