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Find Flight Deals from Denver International to Ontario (DEN - ONT)

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Denver International to Ontario

(Round-trip)
Depart: Sat Feb 21 2015 Return: Tue Feb 24 2015 Trip spans 4 days
US Airways
US Airways
DEN
12:45a
ONT
7:34a
6h 49m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Sun Feb 22 2015 Return: Tue Feb 24 2015 Trip spans 3 days
US Airways
US Airways
DEN
12:45a
ONT
5:06a
4h 21m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Feb 24 2015 Return: Sat Feb 28 2015 Trip spans 5 days
US Airways
US Airways
DEN
12:45a
ONT
5:06a
4h 21m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Wed Feb 25 2015 Return: Sat Feb 28 2015 Trip spans 4 days
US Airways
US Airways
DEN
12:45a
ONT
5:06a
4h 21m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Thu Feb 26 2015 Return: Tue Mar 3 2015 Trip spans 6 days
US Airways
US Airways
DEN
12:45a
ONT
5:06a
4h 21m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Sat Feb 28 2015 Return: Wed Mar 4 2015 Trip spans 5 days
US Airways
US Airways
DEN
1:20p
ONT
5:11p
3h 51m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Mar 10 2015 Return: Wed Mar 18 2015 Trip spans 9 days
US Airways
US Airways
DEN
1:45a
ONT
6:06a
4h 21m
1 stop
ONT
8:40a
DEN
12:39p
3h 59m
1 stop
Depart: Wed Mar 11 2015 Return: Wed Mar 18 2015 Trip spans 8 days
US Airways
US Airways
DEN
1:45a
ONT
6:06a
4h 21m
1 stop
ONT
8:40a
DEN
12:39p
3h 59m
1 stop
Depart: Wed Apr 1 2015 Return: Wed Apr 8 2015 Trip spans 8 days
United
United
DEN
2:00a
ONT
6:50a
4h 50m
1 stop
ONT
1:30a
DEN
9:24a
7h 54m
1 stop
Depart: Tue Mar 24 2015 Return: Wed Apr 1 2015 Trip spans 9 days
US Airways
US Airways
DEN
1:45a
ONT
6:06a
4h 21m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Wed Mar 25 2015 Return: Wed Apr 1 2015 Trip spans 8 days
US Airways
US Airways
DEN
1:45a
ONT
6:06a
4h 21m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Thu Apr 9 2015 Return: Mon Apr 13 2015 Trip spans 5 days
US Airways
US Airways
DEN
1:45a
ONT
6:07a
4h 22m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Fri Apr 10 2015 Return: Mon Apr 20 2015 Trip spans 11 days
US Airways
US Airways
DEN
1:45a
ONT
6:07a
4h 22m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Sat Apr 11 2015 Return: Mon Apr 20 2015 Trip spans 10 days
US Airways
US Airways
DEN
1:45a
ONT
6:07a
4h 22m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Wed Apr 15 2015 Return: Fri Apr 17 2015 Trip spans 3 days
US Airways
US Airways
DEN
4:00a
ONT
8:33a
4h 33m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Thu Apr 16 2015 Return: Fri Apr 17 2015 Trip spans 2 days
US Airways
US Airways
DEN
1:45a
ONT
8:33a
6h 48m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Sat Apr 18 2015 Return: Sun Apr 26 2015 Trip spans 9 days
US Airways
US Airways
DEN
8:17a
ONT
3:05p
6h 48m
1 stop
ONT
3:25p
DEN
7:35p
4h 10m
1 stop
Depart: Tue Feb 17 2015 Return: Tue Feb 24 2015 Trip spans 8 days
Delta
Delta
DEN
2:15p
ONT
6:45p
4h 30m
1 stop
ONT
11:30a
DEN
3:36p
4h 06m
1 stop
Depart: Wed Jan 28 2015 Return: Sat Feb 28 2015 Trip spans 32 days
Multiple Airlines
Multiple Airlines
DEN
8:00a
ONT
11:52a
3h 52m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue May 12 2015 Return: Tue May 19 2015 Trip spans 8 days
American Airlines
American Airlines
DEN
2:00a
ONT
8:31a
6h 31m
1 stop
ONT
3:30p
DEN
7:36p
4h 06m
1 stop
Change your search
Direct flights DEN to ONT on United
Flight # Depart DEN Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
6281 11:13 am 12:30 pm Mar 5 - Mar 6
5165 11:20 am 12:42 pm Feb 22 - Feb 22
5172 11:20 am 12:42 pm Mar 1 - Mar 1
5518 11:20 am 12:42 pm Feb 15 - Feb 15
6281 11:20 am 12:42 pm Feb 14 - Feb 28
6281 11:22 am 12:40 pm Jan 28 - Feb 11
6281 11:22 am 12:44 pm Jan 24 - Feb 10
6477 11:22 am 12:44 pm Feb 9 - Feb 9
6477 11:26 am 12:48 pm Feb 12 - Feb 24
6477 11:26 am 12:48 pm Feb 26 - Mar 3
6477 11:26 am 12:48 pm Feb 25 - Mar 4
5247 6:45 pm 8:07 pm Feb 9 - Feb 11
5518 6:45 pm 8:07 pm Jan 25 - Feb 8
5518 7:30 pm 8:52 pm Mar 3 - Mar 3
5518 7:30 pm 8:52 pm Feb 24 - Feb 24
5229 10:00 pm 11:20 pm Feb 15 - Feb 15
5518 10:00 pm 11:20 pm Feb 22 - Mar 4
5518 10:00 pm 11:20 pm Feb 12 - Feb 20
5518 10:07 pm 11:27 pm Mar 5 - Mar 6
Airports
Origin

Denver
$175
Destination

Ontario
$175