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: Tue May 9 2017 Return: Sat May 20 2017 Trip spans 12 days
United
United
DEN
2:55p
ONT
5:19p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Sat Apr 29 2017 Return: Tue May 2 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
1:55a
ONT
6:01a
4h 06m
1 stop
ONT
8:45a
DEN
12:54p
4h 09m
1 stop
Depart: Wed May 10 2017 Return: Sat May 20 2017 Trip spans 11 days
United
United
DEN
7:25a
ONT
9:46a
2h 21m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Tue Jun 13 2017 Return: Thu Jun 29 2017 Trip spans 17 days
Major Airline
Major Airline
DEN
8:46a
ONT
3:16p
6h 30m
1 stop
ONT
9:15a
DEN
3:42p
6h 27m
1 stop
Depart: Sat Oct 28 2017 Return: Tue Nov 7 2017 Trip spans 11 days
Delta
Delta
DEN
10:45a
ONT
6:02p
7h 17m
1 stop
ONT
5:20a
DEN
9:23a
4h 03m
1 stop
Depart: Tue May 2 2017 Return: Wed May 3 2017 Trip spans 2 days
American Airlines
American Airlines
DEN
1:55a
ONT
6:01a
4h 06m
1 stop
ONT
8:45a
DEN
12:54p
4h 09m
1 stop
Depart: Wed May 3 2017 Return: Sat May 6 2017 Trip spans 4 days
American Airlines
American Airlines
DEN
1:55a
ONT
6:01a
4h 06m
1 stop
ONT
12:30p
DEN
4:54p
4h 24m
1 stop
Depart: Tue May 16 2017 Return: Sat May 20 2017 Trip spans 5 days
United
United
DEN
3:10p
ONT
5:34p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Tue May 23 2017 Return: Tue May 30 2017 Trip spans 8 days
United
United
DEN
3:11p
ONT
5:35p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Wed May 24 2017 Return: Tue May 30 2017 Trip spans 7 days
United
United
DEN
3:11p
ONT
5:35p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Sun May 21 2017 Return: Tue May 23 2017 Trip spans 3 days
Major Airline
Major Airline
DEN
6:50a
ONT
3:40p
8h 50m
nonstop
ONT
10:20p
DEN
4:48a
6h 28m
nonstop
Depart: Sat May 27 2017 Return: Tue May 30 2017 Trip spans 4 days
United
United
DEN
7:25a
ONT
9:46a
2h 21m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Tue Oct 31 2017 Return: Sat Nov 4 2017 Trip spans 5 days
Delta
Delta
DEN
3:30p
ONT
7:44p
4h 14m
1 stop
ONT
2:00a
DEN
7:30a
5h 30m
1 stop
Depart: Mon May 8 2017 Return: Wed May 10 2017 Trip spans 3 days
American Airlines
American Airlines
DEN
11:00a
ONT
3:26p
4h 26m
1 stop
ONT
2:20a
DEN
6:27a
4h 07m
1 stop
Depart: Fri Jul 14 2017 Return: Mon Jul 17 2017 Trip spans 4 days
Alaska Airlines
Alaska Airlines
DEN
12:46p
ONT
7:16p
6h 30m
1 stop
ONT
1:15p
DEN
7:44p
6h 29m
1 stop
Depart: Wed Jun 7 2017 Return: Mon Jun 12 2017 Trip spans 6 days
Major Airline
Major Airline
DEN
10:45p
ONT
3:16p
16h 31m
1 stop
ONT
10:20p
DEN
2:23p
16h 03m
1 stop
Depart: Mon May 15 2017 Return: Sat May 20 2017 Trip spans 6 days
United
United
DEN
3:10p
ONT
5:34p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Sat Jul 22 2017 Return: Mon Jul 24 2017 Trip spans 3 days
Major Airline
Major Airline
DEN
1:00a
ONT
3:18p
14h 18m
1 stop
ONT
10:20p
DEN
2:24p
16h 04m
1 stop
Depart: Fri May 19 2017 Return: Sat May 20 2017 Trip spans 2 days
United
United
DEN
3:10p
ONT
5:34p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Depart: Mon May 22 2017 Return: Sat May 27 2017 Trip spans 6 days
United
United
DEN
3:11p
ONT
5:35p
2h 24m
nonstop
ONT
1:35a
DEN
3:55a
2h 20m
nonstop
Direct flights DEN to ONT on United
Flight # Depart DEN Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
74 11:15 am 12:36 pm Apr 23 - May 2
74 11:15 am 12:36 pm May 3 - May 4
2033 11:19 am 12:41 pm May 29 - May 29
2033 11:25 am 12:46 pm May 30 - Jun 7
2033 11:25 am 12:46 pm May 27 - Jun 3
2033 11:25 am 12:46 pm May 5 - May 14
2033 11:25 am 12:46 pm May 15 - May 26
2033 11:25 am 12:46 pm May 6 - May 6
2033 11:25 am 12:46 pm May 8 - May 10
2033 11:28 am 12:49 pm May 13 - May 13
2033 11:35 am 12:56 pm May 20 - May 20
1199 6:50 pm 8:11 pm May 2 - May 4
1199 6:50 pm 8:14 pm May 12 - May 12
1199 6:50 pm 8:11 pm Apr 23 - May 1
1199 6:55 pm 8:19 pm May 9 - May 9
1199 7:10 pm 8:34 pm May 5 - May 11
1199 7:10 pm 8:34 pm May 7 - May 14
1199 7:10 pm 8:34 pm May 8 - May 8
1199 7:10 pm 8:34 pm May 18 - May 19
1199 7:10 pm 8:34 pm May 15 - May 21
1199 7:10 pm 8:34 pm May 28 - Jun 4
1199 7:11 pm 8:35 pm May 22 - May 24
1199 7:11 pm 8:35 pm May 25 - May 26
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Denver
$112
Destination

Ontario
$112
Airlines Airline reviews

12 travelers who booked a flight from Denver to Ontario rated their chosen airlines with an average of 6.3.

Overall
6.8
Boarding
6.5
Crew
7.3
Comfort
6.8
Food
5.3
Entertainment
5.2