Find Cheap Flights from Lambert-St Louis to Ontario (STL - 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 Lambert-St Louis to Ontario

(Round-trip)
Depart: Sat Nov 4 2017 Return: Mon Nov 6 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
7:26a
7h 26m
1 stop
ONT
12:00a
STL
10:24p
22h 24m
1 stop
Depart: Thu Oct 26 2017 Return: Wed Nov 1 2017 Trip spans 7 days
Delta
Delta
STL
12:00a
ONT
6:25a
6h 25m
1 stop
ONT
12:00a
STL
5:40a
5h 40m
1 stop
Depart: Mon Dec 4 2017 Return: Sat Dec 9 2017 Trip spans 6 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:20a
5h 20m
1 stop
ONT
12:00a
STL
10:27p
22h 27m
1 stop
Depart: Wed Nov 1 2017 Return: Sat Nov 4 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:36a
5h 36m
1 stop
ONT
12:00a
STL
11:24p
23h 24m
1 stop
Depart: Tue Dec 26 2017 Return: Sat Dec 30 2017 Trip spans 5 days
Frontier
Frontier
STL
12:00a
ONT
5:12p
17h 12m
1 stop
ONT
12:00a
STL
10:22p
22h 22m
1 stop
Depart: Wed Dec 27 2017 Return: Mon Jan 1 2018 Trip spans 6 days
United
United
STL
12:00a
ONT
8:28a
8h 28m
1 stop
ONT
12:00a
STL
7:29a
7h 29m
1 stop
Depart: Wed Oct 18 2017 Return: Sun Oct 22 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
8:41a
8h 41m
1 stop
ONT
12:00a
STL
7:32p
19h 32m
1 stop
Depart: Thu Nov 2 2017 Return: Fri Nov 3 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
7:34p
19h 34m
1 stop
ONT
12:00a
STL
7:40a
7h 40m
1 stop
Depart: Sat Nov 4 2017 Return: Sun Nov 5 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
6:13a
6h 13m
1 stop
ONT
12:00a
STL
6:30p
19h 30m
1 stop
Depart: Thu Nov 2 2017 Return: Mon Nov 6 2017 Trip spans 5 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:56a
5h 56m
1 stop
ONT
12:00a
STL
10:24p
22h 24m
1 stop
Depart: Fri Sep 8 2017 Return: Mon Sep 11 2017 Trip spans 4 days
Delta
Delta
STL
12:00a
ONT
8:21a
8h 21m
2 stops
ONT
12:00a
STL
12:14p
12h 14m
2 stops
Depart: Fri Nov 3 2017 Return: Mon Nov 6 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:56a
5h 56m
1 stop
ONT
12:00a
STL
10:24p
22h 24m
1 stop
Depart: Thu Dec 28 2017 Return: Mon Jan 1 2018 Trip spans 5 days
Frontier
Frontier
STL
12:00a
ONT
5:12p
17h 12m
1 stop
ONT
12:00a
STL
10:22p
22h 22m
1 stop
Depart: Fri Nov 3 2017 Return: Sat Nov 4 2017 Trip spans 2 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:56a
5h 56m
1 stop
ONT
12:00a
STL
5:51a
5h 51m
1 stop
Depart: Sat Aug 19 2017 Return: Wed Aug 23 2017 Trip spans 5 days
United
United
STL
12:00a
ONT
5:58a
5h 58m
1 stop
ONT
12:00a
STL
3:41a
27h 41m
1 stop
Depart: Thu Nov 2 2017 Return: Sun Nov 5 2017 Trip spans 4 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
5:56a
5h 56m
1 stop
ONT
12:00a
STL
6:30p
19h 30m
1 stop
Depart: Fri Nov 3 2017 Return: Sun Nov 5 2017 Trip spans 3 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
8:16a
8h 16m
1 stop
ONT
12:00a
STL
6:30p
19h 30m
1 stop
Depart: Fri Aug 18 2017 Return: Mon Aug 21 2017 Trip spans 4 days
United
United
STL
12:00a
ONT
7:14a
7h 14m
1 stop
ONT
12:00a
STL
7:43a
7h 43m
1 stop
Depart: Sat Aug 19 2017 Return: Tue Aug 22 2017 Trip spans 4 days
United
United
STL
12:00a
ONT
5:58a
5h 58m
1 stop
ONT
12:00a
STL
7:57a
7h 57m
1 stop
Depart: Sat Dec 16 2017 Return: Mon Jan 15 2018 Trip spans 31 days
Multiple Airlines
Multiple Airlines
STL
12:00a
ONT
4:03p
16h 03m
1 stop
ONT
12:00a
STL
10:22p
22h 22m
1 stop
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

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Airports
Origin

St. Louis
$269
Destination

Ontario
$269