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 Oct 31 2017 Return: Tue Nov 7 2017 Trip spans 8 days
Frontier
Frontier
DEN
12:00a
ONT
2:24a
2h 24m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Wed Nov 1 2017 Return: Sat Dec 9 2017 Trip spans 39 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Sun Dec 3 2017 Return: Sat Dec 9 2017 Trip spans 7 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Sat Nov 4 2017 Return: Tue Nov 7 2017 Trip spans 4 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Wed Nov 15 2017 Return: Tue Nov 28 2017 Trip spans 14 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Fri Dec 8 2017 Return: Sun Dec 10 2017 Trip spans 3 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Thu Nov 2 2017 Return: Tue Nov 7 2017 Trip spans 6 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Depart: Thu Jan 11 2018 Return: Sat Jan 13 2018 Trip spans 3 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Sat Jan 13 2018 Return: Tue Jan 16 2018 Trip spans 4 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Wed Apr 11 2018 Return: Tue Apr 17 2018 Trip spans 7 days
Frontier
Frontier
DEN
12:00a
ONT
2:23a
2h 23m
nonstop
ONT
12:00a
DEN
2:20a
2h 20m
nonstop
Depart: Thu Feb 1 2018 Return: Sat Feb 3 2018 Trip spans 3 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Tue Feb 27 2018 Return: Mon Mar 5 2018 Trip spans 7 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Wed Mar 7 2018 Return: Wed Mar 14 2018 Trip spans 7 days
Frontier
Frontier
DEN
12:00a
ONT
2:26a
2h 26m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Sat Oct 28 2017 Return: Mon Oct 30 2017 Trip spans 3 days
Frontier
Frontier
DEN
12:00a
ONT
2:24a
2h 24m
nonstop
ONT
12:00a
DEN
2:19a
2h 19m
nonstop
Depart: Sun Oct 29 2017 Return: Tue Oct 31 2017 Trip spans 3 days
Frontier
Frontier
DEN
12:00a
ONT
2:24a
2h 24m
nonstop
ONT
12:00a
DEN
2:19a
2h 19m
nonstop
Depart: Sun Dec 10 2017 Return: Wed Dec 13 2017 Trip spans 4 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Fri Apr 20 2018 Return: Mon Apr 23 2018 Trip spans 4 days
Frontier
Frontier
DEN
12:00a
ONT
2:23a
2h 23m
nonstop
ONT
12:00a
DEN
2:20a
2h 20m
nonstop
Depart: Wed Jan 17 2018 Return: Sun Jan 21 2018 Trip spans 5 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Tue Mar 6 2018 Return: Fri Mar 9 2018 Trip spans 4 days
Frontier
Frontier
DEN
12:00a
ONT
2:27a
2h 27m
nonstop
ONT
12:00a
DEN
2:24a
2h 24m
nonstop
Depart: Mon Dec 4 2017 Return: Fri Dec 8 2017 Trip spans 5 days
Frontier
Frontier
DEN
12:00a
ONT
2:29a
2h 29m
nonstop
ONT
12:00a
DEN
2:18a
2h 18m
nonstop
Direct flights DEN to ONT on United
Flight # Depart DEN Arrive ONT Sun Mon Tue Wed Thu Fri Sat Valid Between
2033 11:15 am 12:33 pm Nov 4 - Nov 4
2033 11:15 am 12:34 pm Nov 26 - Nov 26
2033 11:16 am 12:34 pm Nov 5 - Nov 5
2033 11:16 am 12:35 pm Nov 11 - Nov 18
2033 11:16 am 12:34 pm Nov 25 - Dec 16
2033 11:16 am 12:34 pm Oct 29 - Oct 29
2033 11:18 am 12:36 pm Nov 19 - Nov 19
2033 11:19 am 12:37 pm Nov 1 - Nov 3
2033 11:19 am 12:37 pm Nov 12 - Nov 12
2033 11:21 am 12:39 pm Oct 30 - Oct 31
2033 11:21 am 12:41 pm Nov 17 - Nov 17
2033 11:21 am 12:38 pm Nov 27 - Nov 27
2033 11:21 am 12:38 pm Nov 6 - Nov 16
2033 11:21 am 12:38 pm Nov 20 - Nov 22
2033 11:21 am 12:39 pm Nov 23 - Nov 23
2033 11:21 am 12:40 pm Nov 24 - Nov 24
2033 11:22 am 12:42 pm Oct 28 - Oct 28
2033 11:22 am 12:42 pm Oct 22 - Oct 27
613 6:55 pm 8:15 pm Nov 26 - Nov 26
613 6:55 pm 8:15 pm Nov 4 - Nov 4
613 6:55 pm 8:15 pm Oct 30 - Oct 31
613 6:58 pm 8:17 pm Nov 27 - Dec 7
613 6:58 pm 8:18 pm Nov 6 - Nov 22
613 6:59 pm 8:19 pm Nov 1 - Nov 3
613 7:04 pm 8:24 pm Nov 25 - Nov 25
613 7:05 pm 8:25 pm Nov 11 - Nov 18
1199 7:15 pm 8:40 pm Oct 27 - Oct 27
613 7:15 pm 8:35 pm Oct 29 - Oct 29
613 7:15 pm 8:35 pm Nov 5 - Nov 19
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

Denver
$67
Destination

Ontario
$67
Airlines