Find Deals on 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
Students
under 26
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 Jan 10 2017 Return: Wed Jan 18 2017 Trip spans 9 days
United
United
DEN
6:21a
ONT
8:44a
2h 23m
nonstop
ONT
12:38a
DEN
3:04a
2h 26m
nonstop
Depart: Mon Feb 13 2017 Return: Tue Mar 21 2017 Trip spans 36 days
Major Airline
Major Airline
DEN
8:35a
ONT
12:58a
16h 23m
1 stop
ONT
3:45a
DEN
10:20a
6h 35m
1 stop
Depart: Tue Jan 17 2017 Return: Sat Jan 21 2017 Trip spans 5 days
American Airlines
American Airlines
DEN
12:40a
ONT
7:46a
7h 06m
1 stop
ONT
1:15a
DEN
5:30a
4h 15m
1 stop
Depart: Tue Jan 31 2017 Return: Sat Feb 4 2017 Trip spans 5 days
Delta
Delta
DEN
1:00a
ONT
5:35a
4h 35m
1 stop
ONT
1:00a
DEN
6:40a
5h 40m
1 stop
Depart: Wed Jan 18 2017 Return: Sat Jan 21 2017 Trip spans 4 days
United
United
DEN
6:23a
ONT
8:47a
2h 24m
nonstop
ONT
12:38a
DEN
3:04a
2h 26m
nonstop
Depart: Mon Mar 6 2017 Return: Sat Mar 11 2017 Trip spans 6 days
Major Airline
Major Airline
DEN
9:00p
ONT
8:25a
11h 25m
1 stop
ONT
8:15a
DEN
10:44p
14h 29m
1 stop
Depart: Wed Feb 15 2017 Return: Tue Feb 21 2017 Trip spans 7 days
American Airlines
American Airlines
DEN
2:45a
ONT
7:46a
5h 01m
1 stop
ONT
7:45a
DEN
11:48a
4h 03m
1 stop
Depart: Sat Jan 21 2017 Return: Tue Jan 24 2017 Trip spans 4 days
United
United
DEN
6:24a
ONT
8:47a
2h 23m
nonstop
ONT
12:38a
DEN
3:04a
2h 26m
nonstop
Depart: Thu Jan 5 2017 Return: Wed Jan 18 2017 Trip spans 14 days
American Airlines
American Airlines
DEN
1:28p
ONT
5:49p
4h 21m
1 stop
ONT
1:15a
DEN
5:30a
4h 15m
1 stop
Depart: Wed Jan 25 2017 Return: Sat Feb 4 2017 Trip spans 11 days
United
United
DEN
6:21a
ONT
8:45a
2h 24m
nonstop
ONT
12:38a
DEN
3:04a
2h 26m
nonstop
Depart: Sat Feb 25 2017 Return: Fri Mar 3 2017 Trip spans 7 days
Major Airline
Major Airline
DEN
9:00p
ONT
8:25a
11h 25m
1 stop
ONT
5:25a
DEN
12:03p
6h 38m
1 stop
Depart: Wed Apr 26 2017 Return: Sat Apr 29 2017 Trip spans 4 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: Thu Mar 2 2017 Return: Thu Mar 9 2017 Trip spans 8 days
Delta
Delta
DEN
1:00a
ONT
5:40a
4h 40m
1 stop
ONT
1:00a
DEN
6:27a
5h 27m
1 stop
Depart: Sat Feb 11 2017 Return: Sat Feb 18 2017 Trip spans 8 days
United
United
DEN
6:20a
ONT
8:43a
2h 23m
nonstop
ONT
12:30a
DEN
2:56a
2h 26m
nonstop
Depart: Fri Jan 6 2017 Return: Wed Jan 18 2017 Trip spans 13 days
American Airlines
American Airlines
DEN
1:28p
ONT
5:49p
4h 21m
1 stop
ONT
1:15a
DEN
5:30a
4h 15m
1 stop
Depart: Sat Feb 18 2017 Return: Tue Feb 21 2017 Trip spans 4 days
United
United
DEN
6:22a
ONT
8:45a
2h 23m
nonstop
ONT
12:30a
DEN
2:56a
2h 26m
nonstop
Depart: Wed Apr 19 2017 Return: Sun Apr 23 2017 Trip spans 5 days
Major Airline
Major Airline
DEN
11:00p
ONT
3:14p
16h 14m
nonstop
ONT
10:20p
DEN
6:42a
8h 22m
nonstop
Depart: Mon Jan 9 2017 Return: Wed Jan 18 2017 Trip spans 10 days
American Airlines
American Airlines
DEN
1:34p
ONT
5:39p
4h 05m
1 stop
ONT
1:15a
DEN
5:30a
4h 15m
1 stop
Depart: Tue Feb 21 2017 Return: Wed Feb 22 2017 Trip spans 2 days
United
United
DEN
2:00p
ONT
4:25p
2h 25m
nonstop
ONT
8:30a
DEN
10:51a
2h 21m
nonstop
Depart: Sun Mar 12 2017 Return: Sat Mar 18 2017 Trip spans 6 days
Delta
Delta
DEN
1:05a
ONT
6:40a
4h 35m
1 stop
ONT
2:00a
DEN
7:27a
5h 27m
1 stop
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 12:41 pm Dec 30 - Dec 30
74 11:15 am 12:42 pm Dec 27 - Dec 27
74 11:15 am 12:42 pm Dec 24 - Dec 24
74 11:15 am 12:42 pm Dec 19 - Dec 20
74 11:16 am 12:43 pm Dec 26 - Dec 26
74 11:16 am 12:42 pm Dec 18 - Dec 18
74 11:17 am 12:44 pm Dec 29 - Jan 3
74 11:18 am 12:45 pm Dec 23 - Dec 23
74 11:19 am 12:46 pm Jan 2 - Jan 2
74 11:19 am 12:45 pm Dec 25 - Dec 25
74 11:19 am 12:46 pm Dec 22 - Dec 22
74 11:20 am 12:47 pm Dec 21 - Dec 28
74 11:20 am 12:43 pm Jan 6 - Jan 15
74 11:20 am 12:43 pm Jan 7 - Jan 7
74 11:21 am 12:47 pm Dec 31 - Dec 31
74 11:21 am 12:44 pm Jan 14 - Jan 14
74 11:21 am 12:45 pm Jan 11 - Jan 11
74 11:21 am 12:44 pm Jan 10 - Jan 16
74 11:23 am 12:47 pm Jan 17 - Jan 18
74 11:23 am 12:46 pm Jan 5 - Jan 12
74 11:26 am 12:50 pm Jan 4 - Jan 4
1199 6:50 pm 8:15 pm Jan 15 - Jan 20
1199 6:50 pm 8:14 pm Jan 2 - Jan 2
1199 6:50 pm 8:15 pm Jan 5 - Jan 6
1199 6:51 pm 8:15 pm Jan 9 - Jan 9
1199 6:51 pm 8:16 pm Jan 12 - Jan 12
1199 6:51 pm 8:19 pm Jan 13 - Jan 13
1199 6:52 pm 8:15 pm Jan 8 - Jan 8
1199 6:52 pm 8:16 pm Dec 19 - Dec 19
1199 7:00 pm 8:24 pm Dec 28 - Dec 28
1199 7:04 pm 8:28 pm Dec 30 - Dec 30
1199 7:05 pm 8:29 pm Dec 26 - Jan 1
1199 7:05 pm 8:29 pm Dec 22 - Dec 29
1199 7:05 pm 8:28 pm Dec 20 - Dec 20
1199 7:05 pm 8:29 pm Dec 16 - Dec 23
1199 7:05 pm 8:29 pm Jan 3 - Jan 3
1199 7:35 pm 8:59 pm Dec 18 - Dec 18
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Here's why:

We’re not the seller.
At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

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Airports
Origin

Denver
$229
Destination

Ontario
$229
Airlines Airline reviews

6 travelers who booked a flight from Denver to Ontario rated their chosen airlines with an average of 5.3.

Overall
6.0
Boarding
5.0
Crew
6.7
Comfort
5.7
Food
4.3
Entertainment
4.3