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: Mon Jul 17 2017 Return: Sat Jul 22 2017 Trip spans 6 days
United
United
SEA
1:32p
ONT
8:09p
6h 37m
1 stop
ONT
4:10p
SEA
9:00p
4h 50m
1 stop
Depart: Wed May 3 2017 Return: Wed May 10 2017 Trip spans 8 days
American Airlines
American Airlines
SEA
1:00a
ONT
7:41a
6h 41m
1 stop
ONT
8:45a
SEA
4:16p
7h 31m
1 stop
Depart: Thu Aug 3 2017 Return: Mon Aug 7 2017 Trip spans 5 days
Southwest
Southwest
SEA
1:35a
ONT
5:50a
4h 15m
1 stop
ONT
1:15a
SEA
5:35a
4h 20m
1 stop
Depart: Wed May 17 2017 Return: Wed May 31 2017 Trip spans 15 days
Major Airline
Major Airline
SEA
6:00a
ONT
12:10p
6h 10m
1 stop
ONT
3:00a
SEA
9:21a
6h 21m
1 stop
Depart: Wed May 31 2017 Return: Tue Jun 6 2017 Trip spans 7 days
Delta
Delta
SEA
7:29a
ONT
12:11p
4h 42m
1 stop
ONT
12:46p
SEA
7:10p
6h 24m
1 stop
Depart: Wed May 24 2017 Return: Wed May 31 2017 Trip spans 8 days
Alaska Airlines
Alaska Airlines
SEA
3:50p
ONT
6:15p
2h 25m
nonstop
ONT
1:30p
SEA
4:11p
2h 41m
nonstop
Depart: Tue May 9 2017 Return: Wed May 17 2017 Trip spans 9 days
United
United
SEA
2:00a
ONT
6:06a
4h 06m
1 stop
ONT
3:10p
SEA
9:13p
6h 03m
1 stop
Depart: Mon May 1 2017 Return: Tue May 23 2017 Trip spans 23 days
American Airlines
American Airlines
SEA
11:00a
ONT
5:45p
6h 45m
1 stop
ONT
2:20a
SEA
4:55a
2h 35m
nonstop
Depart: Wed May 10 2017 Return: Wed May 17 2017 Trip spans 8 days
United
United
SEA
11:30a
ONT
4:36p
5h 06m
1 stop
ONT
3:10p
SEA
9:13p
6h 03m
1 stop
Depart: Wed Aug 23 2017 Return: Sun Aug 27 2017 Trip spans 5 days
Major Airline
Major Airline
SEA
1:45a
ONT
8:20a
6h 35m
1 stop
ONT
12:45p
SEA
9:55p
9h 10m
1 stop
Depart: Thu Sep 7 2017 Return: Sat Sep 9 2017 Trip spans 3 days
Delta
Delta
SEA
7:15a
ONT
12:28p
5h 13m
1 stop
ONT
9:00a
SEA
2:00p
5h 00m
1 stop
Depart: Sat May 27 2017 Return: Wed May 31 2017 Trip spans 5 days
Alaska Airlines
Alaska Airlines
SEA
3:50p
ONT
6:15p
2h 25m
nonstop
ONT
1:30p
SEA
4:11p
2h 41m
nonstop
Depart: Sat May 13 2017 Return: Wed May 17 2017 Trip spans 5 days
United
United
SEA
3:10p
ONT
8:11p
5h 01m
1 stop
ONT
3:10p
SEA
9:13p
6h 03m
1 stop
Depart: Tue Sep 12 2017 Return: Sat Sep 16 2017 Trip spans 5 days
Delta
Delta
SEA
2:25p
ONT
6:44p
4h 19m
1 stop
ONT
9:00a
SEA
2:00p
5h 00m
1 stop
Depart: Sun May 28 2017 Return: Wed May 31 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
SEA
4:15p
ONT
6:40p
2h 25m
nonstop
ONT
1:30p
SEA
4:11p
2h 41m
nonstop
Depart: Sun Aug 6 2017 Return: Fri Aug 11 2017 Trip spans 6 days
Major Airline
Major Airline
SEA
12:40a
ONT
3:17a
2h 37m
nonstop
ONT
4:00a
SEA
6:38a
2h 38m
nonstop
Depart: Mon May 15 2017 Return: Wed May 17 2017 Trip spans 3 days
United
United
SEA
11:30a
ONT
3:36p
4h 06m
1 stop
ONT
6:40a
SEA
2:18p
7h 38m
1 stop
Depart: Tue May 30 2017 Return: Wed May 31 2017 Trip spans 2 days
Alaska Airlines
Alaska Airlines
SEA
10:00a
ONT
12:30p
2h 30m
nonstop
ONT
1:30p
SEA
4:11p
2h 41m
nonstop
Depart: Fri Jul 14 2017 Return: Sat Jul 22 2017 Trip spans 9 days
Major Airline
Major Airline
SEA
2:02p
ONT
11:15a
21h 13m
1 stop
ONT
2:58a
SEA
8:19a
5h 21m
1 stop
Depart: Sun Sep 17 2017 Return: Mon Sep 18 2017 Trip spans 2 days
American Airlines
American Airlines
SEA
4:25a
ONT
6:59a
2h 34m
nonstop
ONT
2:20a
SEA
5:00a
2h 40m
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 Apr 30 - May 7
7025 7:25 am 9:52 am May 8 - May 16
7025 7:25 am 9:59 am May 10 - May 12
7025 7:25 am 9:52 am May 11 - May 13
7025 7:25 am 9:52 am May 17 - May 17
7465 8:25 am 11:23 am May 18 - Jun 3
7465 8:40 am 11:17 am Jun 4 - Aug 26
7005 1:40 pm 4:17 pm Jun 4 - Jun 18
7005 2:00 pm 4:30 pm May 18 - May 25
7005 2:00 pm 4:30 pm May 19 - May 30
7005 2:00 pm 4:33 pm May 31 - May 31
7005 2:00 pm 4:30 pm Jun 1 - Jun 1
7005 2:00 pm 4:30 pm Jun 2 - Jun 2
7005 2:00 pm 4:27 pm May 2 - May 7
7005 2:00 pm 4:30 pm May 8 - May 17
7005 2:00 pm 4:30 pm May 11 - May 14
7005 2:00 pm 4:33 pm May 12 - May 12
7021 7:50 pm 10:15 pm May 9 - May 13
7021 7:50 pm 10:15 pm May 11 - May 18
7021 7:50 pm 10:15 pm May 19 - May 26
7021 7:50 pm 10:15 pm May 20 - May 27
7021 7:50 pm 10:15 pm May 29 - Jun 2
7021 7:50 pm 10:15 pm Jun 3 - Jun 3
7021 7:50 pm 10:16 pm Jun 4 - Jun 11
7021 7:50 pm 10:16 pm Jun 5 - Jun 9
7021 7:50 pm 10:14 pm Apr 27 - May 6
7021 8:15 pm 10:38 pm May 7 - May 7
7021 8:15 pm 10:39 pm May 8 - May 8
7021 8:15 pm 10:40 pm May 12 - May 14
7021 8:15 pm 10:40 pm May 15 - May 15
7021 8:15 pm 10:40 pm May 21 - May 21
7021 8:15 pm 10:40 pm May 28 - May 28
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Seattle
$144
Destination

Ontario
$144
Airlines Airline reviews

55 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
8.5
Food
7.9
Entertainment
7.4