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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: Fri Jan 9 2015 Return: Thu Jan 15 2015 Trip spans 7 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Mon Jan 12 2015 Return: Wed Jan 14 2015 Trip spans 3 days
US Airways
US Airways
DEN
7:20a
ONT
2:21p
7h 01m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Wed Jan 14 2015 Return: Wed Jan 21 2015 Trip spans 8 days
US Airways
US Airways
DEN
9:50a
ONT
2:46p
4h 56m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Thu Jan 15 2015 Return: Tue Jan 20 2015 Trip spans 6 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Sat Jan 17 2015 Return: Tue Jan 20 2015 Trip spans 4 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: Thu Jan 22 2015 Return: Mon Jan 26 2015 Trip spans 5 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: Fri Jan 23 2015 Return: Mon Jan 26 2015 Trip spans 4 days
US Airways
US Airways
DEN
3:05a
ONT
7:34a
4h 29m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Feb 3 2015 Return: Tue Feb 10 2015 Trip spans 8 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Sat Feb 7 2015 Return: Tue Feb 10 2015 Trip spans 4 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: Sun Feb 8 2015 Return: Sat Feb 14 2015 Trip spans 7 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: Mon Feb 9 2015 Return: Wed Feb 11 2015 Trip spans 3 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Feb 10 2015 Return: Sat Feb 14 2015 Trip spans 5 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Wed Feb 11 2015 Return: Sat Feb 14 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: Sat Feb 14 2015 Return: Tue Feb 24 2015 Trip spans 11 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 15 2015 Return: Tue Feb 24 2015 Trip spans 10 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Feb 17 2015 Return: Tue Feb 24 2015 Trip spans 8 days
US Airways
US Airways
DEN
12:45a
ONT
5:04a
4h 19m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Mon Feb 2 2015 Return: Tue Feb 10 2015 Trip spans 9 days
Multiple Airlines
Multiple Airlines
DEN
2:20p
ONT
6:35p
4h 15m
1 stop
ONT
7:40a
DEN
11:39a
3h 59m
1 stop
Depart: Tue Mar 24 2015 Return: Tue Mar 31 2015 Trip spans 8 days
United
United
DEN
3:10p
ONT
5:27p
2h 17m
nonstop
ONT
9:05a
DEN
11:18a
2h 13m
nonstop
Depart: Tue Jan 6 2015 Return: Thu Jan 8 2015 Trip spans 3 days
Delta
Delta
DEN
1:55p
ONT
5:49p
3h 54m
1 stop
ONT
1:15a
DEN
5:11a
3h 56m
1 stop
Depart: Tue Apr 7 2015 Return: Tue Apr 14 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 11:22 am 12:44 pm Jan 6 - Feb 10
6281 11:22 am 12:40 pm Jan 7 - Feb 11
6477 11:22 am 12:44 pm Jan 12 - Jan 12
6477 11:22 am 12:44 pm Jan 19 - Jan 26
5518 11:31 am 12:51 pm Dec 30 - Jan 2
5518 11:31 am 12:55 pm Jan 1 - Jan 1
6281 11:31 am 12:51 pm Dec 26 - Dec 29
6281 11:31 am 12:51 pm Jan 5 - Jan 5
6477 11:31 am 12:55 pm Jan 3 - Jan 3
5518 11:33 am 12:57 pm Dec 28 - Dec 28
6281 11:33 am 12:57 pm Jan 4 - Jan 4
6281 11:33 am 12:57 pm Dec 27 - Dec 27
6281 11:37 am 1:01 pm Dec 24 - Dec 31
5208 6:45 pm 8:07 pm Jan 22 - Jan 23
5518 6:45 pm 8:07 pm Jan 25 - Feb 8
5518 6:45 pm 8:07 pm Jan 6 - Jan 21
5518 7:55 pm 9:19 pm Jan 4 - Jan 4
6195 7:55 pm 9:19 pm Dec 26 - Dec 29
6195 7:55 pm 9:19 pm Dec 30 - Jan 2
6195 7:55 pm 9:19 pm Jan 5 - Jan 5
6281 7:55 pm 9:19 pm Dec 28 - Dec 28
6375 7:55 pm 9:19 pm Dec 20 - Jan 3
Airports
Origin

Denver
$175
Destination

Ontario
$175