Find Cheap 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: Tue Dec 5 2017 Return: Wed Dec 13 2017 Trip spans 9 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:33a
2h 33m
nonstop
ONT
12:00a
SEA
2:49a
2h 49m
nonstop
Depart: Wed Nov 8 2017 Return: Tue Nov 14 2017 Trip spans 7 days
United
United
SEA
12:00a
ONT
4:42a
4h 42m
1 stop
ONT
12:00a
SEA
4:38a
4h 38m
1 stop
Depart: Wed Mar 7 2018 Return: Sun Mar 11 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ONT
2:34a
2h 34m
nonstop
ONT
12:00a
SEA
6:10a
5h 10m
1 stop
Depart: Tue Oct 31 2017 Return: Sun Nov 5 2017 Trip spans 6 days
Frontier
Frontier
SEA
12:00a
ONT
7:04p
19h 04m
1 stop
ONT
12:00a
SEA
3:59p
16h 59m
1 stop
Depart: Thu Mar 15 2018 Return: Tue Mar 20 2018 Trip spans 6 days
Delta
Delta
SEA
12:00a
ONT
5:31a
5h 31m
1 stop
ONT
12:00a
SEA
6:05a
6h 05m
1 stop
Depart: Wed Nov 29 2017 Return: Sat Dec 2 2017 Trip spans 4 days
United
United
SEA
12:00a
ONT
4:42a
4h 42m
1 stop
ONT
12:00a
SEA
5:28a
5h 28m
1 stop
Depart: Wed Jan 10 2018 Return: Sat Jan 13 2018 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:36a
2h 36m
nonstop
ONT
12:00a
SEA
2:44a
2h 44m
nonstop
Depart: Fri Dec 1 2017 Return: Sun Dec 3 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ONT
2:23a
2h 23m
nonstop
ONT
12:00a
SEA
6:53a
6h 53m
1 stop
Depart: Sat Jan 13 2018 Return: Wed Jan 17 2018 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:36a
2h 36m
nonstop
ONT
12:00a
SEA
2:44a
2h 44m
nonstop
Depart: Sat Feb 10 2018 Return: Tue Feb 13 2018 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:34a
2h 34m
nonstop
ONT
12:00a
SEA
2:40a
2h 40m
nonstop
Depart: Sat Nov 11 2017 Return: Thu Nov 23 2017 Trip spans 13 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ONT
4:45a
4h 45m
1 stop
ONT
12:00a
SEA
5:18a
5h 18m
1 stop
Depart: Wed Apr 11 2018 Return: Tue Apr 17 2018 Trip spans 7 days
Frontier
Frontier
SEA
12:00a
ONT
2:10p
14h 10m
1 stop
ONT
12:00a
SEA
1:49p
13h 49m
1 stop
Depart: Mon Oct 30 2017 Return: Thu Nov 2 2017 Trip spans 4 days
United
United
SEA
12:00a
ONT
4:49a
4h 49m
1 stop
ONT
12:00a
SEA
5:49a
5h 49m
1 stop
Depart: Tue Feb 13 2018 Return: Wed Feb 14 2018 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:34a
2h 34m
nonstop
ONT
12:00a
SEA
2:40a
2h 40m
nonstop
Depart: Thu Mar 8 2018 Return: Tue Mar 13 2018 Trip spans 5 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ONT
5:38a
5h 38m
1 stop
ONT
12:00a
SEA
4:36a
4h 36m
1 stop
Depart: Thu Nov 2 2017 Return: Sun Nov 5 2017 Trip spans 4 days
Frontier
Frontier
SEA
12:00a
ONT
6:34p
18h 34m
1 stop
ONT
12:00a
SEA
2:05p
15h 05m
1 stop
Depart: Thu Dec 14 2017 Return: Sun Dec 17 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
SEA
12:00a
ONT
6:27p
18h 27m
1 stop
ONT
12:00a
SEA
6:53a
6h 53m
1 stop
Depart: Thu Oct 26 2017 Return: Sat Oct 28 2017 Trip spans 3 days
Delta
Delta
SEA
12:00a
ONT
4:27a
4h 27m
1 stop
ONT
12:00a
SEA
5:17a
5h 17m
1 stop
Depart: Mon Feb 5 2018 Return: Sat Feb 10 2018 Trip spans 6 days
Alaska Airlines
Alaska Airlines
SEA
12:00a
ONT
2:34a
2h 34m
nonstop
ONT
12:00a
SEA
2:40a
2h 40m
nonstop
Depart: Thu Oct 26 2017 Return: Sat Oct 28 2017 Trip spans 3 days
Delta
Delta
SEA
12:00a
ONT
4:27a
4h 27m
1 stop
ONT
12:00a
SEA
5:17a
5h 17m
1 stop
Direct flights SEA to ONT on American Airlines
Flight # Depart SEA Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
7025 6:50 am 9:25 am Nov 14 - Nov 25
7025 6:50 am 9:25 am Nov 5 - Nov 13
7025 6:50 am 9:25 am Nov 7 - Nov 8
7025 6:50 am 9:25 am Nov 27 - Dec 2
7025 6:50 am 9:25 am Nov 26 - Nov 29
7025 7:30 am 10:00 am Oct 25 - Oct 31
7025 7:30 am 10:00 am Oct 26 - Nov 3
7025 7:30 am 10:00 am Nov 4 - Nov 4
7005 1:45 pm 4:11 pm Oct 24 - Oct 31
7005 1:45 pm 4:11 pm Oct 26 - Nov 2
7005 1:45 pm 4:11 pm Nov 3 - Nov 4
7005 3:35 pm 5:58 pm Nov 26 - Nov 27
7005 3:35 pm 5:58 pm Nov 5 - Nov 11
7005 3:35 pm 5:58 pm Nov 18 - Nov 25
7005 3:35 pm 5:58 pm Nov 17 - Nov 17
7005 3:35 pm 5:58 pm Nov 7 - Nov 16
7021 9:10 pm 11:37 pm Oct 21 - Oct 30
7021 9:10 pm 11:37 pm Oct 31 - Nov 2
7021 9:10 pm 11:37 pm Nov 3 - Nov 3
7021 9:25 pm 11:52 pm Nov 16 - Nov 26
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Seattle
$147
Destination

Ontario
$147
Airlines Airline reviews

86 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
8.8
Comfort
8.5
Food
7.7
Entertainment
7.4