Find Cheap Flights from Denver International to Ontario (DEN - 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 Denver International to Ontario

(Round-trip)
Depart: Sat Aug 19 2017 Return: Sat Aug 26 2017 Trip spans 8 days
United
United
DEN
12:10p
ONT
2:30p
2h 20m
nonstop
ONT
1:35a
DEN
3:52a
2h 17m
nonstop
Depart: Sat Sep 9 2017 Return: Tue Sep 12 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
11:00a
ONT
3:28p
4h 28m
1 stop
ONT
8:45a
DEN
12:48p
4h 03m
1 stop
Depart: Sun Jul 16 2017 Return: Sat Jul 22 2017 Trip spans 7 days
Southwest
Southwest
DEN
3:00a
ONT
8:00a
5h 00m
1 stop
ONT
3:35p
DEN
7:20p
3h 45m
1 stop
Depart: Wed Oct 18 2017 Return: Sat Oct 21 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
11:00a
ONT
3:28p
4h 28m
1 stop
ONT
8:45a
DEN
12:48p
4h 03m
1 stop
Depart: Wed Nov 22 2017 Return: Mon Nov 27 2017 Trip spans 6 days
Major Airline
Major Airline
DEN
12:55a
ONT
7:30a
6h 35m
1 stop
ONT
7:30a
DEN
12:22p
28h 52m
1 stop
Depart: Tue Jun 6 2017 Return: Sat Jun 10 2017 Trip spans 5 days
United
United
DEN
3:10p
ONT
5:34p
2h 24m
nonstop
ONT
1:35a
DEN
3:52a
2h 17m
nonstop
Depart: Fri Oct 20 2017 Return: Sun Oct 22 2017 Trip spans 3 days
Alaska Airlines
Alaska Airlines
DEN
3:00a
ONT
1:11p
10h 11m
1 stop
ONT
2:05a
DEN
8:25a
6h 20m
1 stop
Depart: Tue Aug 22 2017 Return: Sat Aug 26 2017 Trip spans 5 days
American Airlines
American Airlines
DEN
3:45a
ONT
8:46a
5h 01m
1 stop
ONT
12:30p
DEN
4:47p
4h 17m
1 stop
Depart: Thu Jun 8 2017 Return: Sat Jun 10 2017 Trip spans 3 days
United
United
DEN
7:20a
ONT
9:39a
2h 19m
nonstop
ONT
1:35a
DEN
3:52a
2h 17m
nonstop
Depart: Wed Aug 23 2017 Return: Sat Aug 26 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
11:00a
ONT
3:28p
4h 28m
1 stop
ONT
8:45a
DEN
12:48p
4h 03m
1 stop
Depart: Fri Jun 9 2017 Return: Sat Jun 10 2017 Trip spans 2 days
United
United
DEN
3:25p
ONT
5:45p
2h 20m
nonstop
ONT
1:35a
DEN
3:52a
2h 17m
nonstop
Depart: Thu Sep 7 2017 Return: Wed Sep 13 2017 Trip spans 7 days
American Airlines
American Airlines
DEN
3:45a
ONT
8:46a
5h 01m
1 stop
ONT
8:45a
DEN
12:48p
4h 03m
1 stop
Depart: Sat Jun 17 2017 Return: Thu Jun 22 2017 Trip spans 6 days
United
United
DEN
12:10p
ONT
2:30p
2h 20m
nonstop
ONT
1:35a
DEN
3:53a
2h 18m
nonstop
Depart: Thu Aug 24 2017 Return: Sat Aug 26 2017 Trip spans 3 days
American Airlines
American Airlines
DEN
3:45a
ONT
8:46a
5h 01m
1 stop
ONT
12:30p
DEN
4:47p
4h 17m
1 stop
Depart: Tue Jun 20 2017 Return: Thu Jun 22 2017 Trip spans 3 days
United
United
DEN
3:25p
ONT
5:42p
2h 17m
nonstop
ONT
1:35a
DEN
3:53a
2h 18m
nonstop
Depart: Tue Aug 15 2017 Return: Sat Aug 19 2017 Trip spans 5 days
American Airlines
American Airlines
DEN
4:10a
ONT
8:42a
4h 32m
1 stop
ONT
8:45a
DEN
12:57p
4h 12m
1 stop
Depart: Sat Jun 24 2017 Return: Mon Jun 26 2017 Trip spans 3 days
Southwest
Southwest
DEN
2:55p
ONT
7:00p
4h 05m
1 stop
ONT
2:55p
DEN
7:20p
4h 25m
1 stop
Depart: Fri Aug 18 2017 Return: Sat Aug 26 2017 Trip spans 9 days
United
United
DEN
3:30p
ONT
5:50p
2h 20m
nonstop
ONT
1:35a
DEN
3:52a
2h 17m
nonstop
Depart: Wed Aug 16 2017 Return: Sat Aug 19 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
11:00a
ONT
3:26p
4h 26m
1 stop
ONT
8:45a
DEN
12:57p
4h 12m
1 stop
Depart: Sat Oct 28 2017 Return: Tue Nov 7 2017 Trip spans 11 days
United
United
DEN
7:20a
ONT
9:38a
2h 18m
nonstop
ONT
8:15a
DEN
10:20a
2h 05m
nonstop
Direct flights DEN to ONT on United
Flight # Depart DEN Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
2033 11:20 am 12:39 pm Jun 8 - Jun 30
5191 11:20 am 12:43 pm Jun 11 - Jun 25
2033 11:25 am 12:46 pm May 27 - Jun 3
2033 11:25 am 12:46 pm May 30 - Jun 7
275 4:10 pm 5:30 pm Jun 10 - Jun 24
1199 6:50 pm 8:14 pm Jun 7 - Jun 7
1199 7:10 pm 8:34 pm Jun 6 - Jun 6
1199 7:10 pm 8:34 pm Jun 5 - Jun 5
1199 7:10 pm 8:34 pm May 29 - Jun 4
1199 7:25 pm 8:42 pm Jun 16 - Jun 30
1199 7:25 pm 8:42 pm Jun 18 - Jun 25
1199 7:25 pm 8:45 pm Jun 9 - Jun 9
1199 7:25 pm 8:42 pm Jun 8 - Jun 15
1199 7:25 pm 8:45 pm Jun 11 - Jun 11
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Denver
$187
Destination

Ontario
$187
Airlines Airline reviews

15 travelers who booked a flight from Denver to Ontario rated their chosen airlines with an average of 7.0.

Overall
7.5
Boarding
7.2
Crew
7.9
Comfort
7.5
Food
6.3
Entertainment
6.2