Find Cheap Flights from Lambert-St Louis to Montreal (STL - YMQ)

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.
Compare vs. KAYAK all | none
Browse Origins:
Browse Destinations:

Dates flexible? Here are the best fares found in the past 48 hours...

Book cheap flights from Lambert-St Louis to Montreal

(Round-trip)
Depart: Mon Dec 4 2017 Return: Tue Dec 5 2017 Trip spans 2 days
American Airlines
American Airlines
STL
12:35p
YUL
3:26a
14h 51m
1 stop
YUL
6:50a
STL
1:09p
6h 19m
1 stop
Depart: Sun Sep 10 2017 Return: Fri Sep 15 2017 Trip spans 6 days
Delta
Delta
STL
11:13a
YUL
6:58p
7h 45m
1 stop
YUL
8:55a
STL
3:28p
6h 33m
1 stop
Depart: Mon Oct 2 2017 Return: Thu Oct 12 2017 Trip spans 11 days
WestJet
WestJet
STL
12:58p
YUL
5:10a
16h 12m
1 stop
YUL
3:01a
STL
9:10a
6h 09m
1 stop
Depart: Mon Nov 20 2017 Return: Thu Nov 23 2017 Trip spans 4 days
United
United
STL
8:26a
YUL
12:45p
4h 19m
1 stop
YUL
4:49a
STL
10:02a
5h 13m
1 stop
Depart: Fri Nov 17 2017 Return: Mon Nov 20 2017 Trip spans 4 days
Air Canada
Air Canada
STL
1:00a
YUL
7:13a
6h 13m
1 stop
YUL
8:00a
STL
1:17p
5h 17m
1 stop
Depart: Wed Sep 6 2017 Return: Sun Sep 10 2017 Trip spans 5 days
American Airlines
American Airlines
STL
2:00a
YUL
5:17p
15h 17m
1 stop
YUL
2:25a
STL
8:14a
5h 49m
1 stop
Depart: Thu Oct 12 2017 Return: Sun Oct 15 2017 Trip spans 4 days
Delta
Delta
STL
2:03a
YUL
9:21a
7h 18m
1 stop
YUL
2:00a
STL
8:25a
6h 25m
1 stop
Depart: Wed Nov 22 2017 Return: Thu Nov 23 2017 Trip spans 2 days
United
United
STL
8:30a
YUL
3:24p
6h 54m
1 stop
YUL
4:49a
STL
10:02a
5h 13m
1 stop
Depart: Thu Nov 16 2017 Return: Mon Nov 27 2017 Trip spans 12 days
WestJet
WestJet
STL
1:20a
YUL
6:20a
5h 00m
1 stop
YUL
8:00a
STL
5:56a
21h 56m
1 stop
Depart: Tue Nov 21 2017 Return: Tue Nov 28 2017 Trip spans 8 days
American Airlines
American Airlines
STL
11:14a
YUL
4:14p
5h 00m
1 stop
YUL
2:25a
STL
11:33a
9h 08m
1 stop
Depart: Thu Nov 23 2017 Return: Mon Nov 27 2017 Trip spans 5 days
Air Canada
Air Canada
STL
4:40a
YUL
11:13a
6h 33m
1 stop
YUL
2:55p
STL
7:59p
5h 04m
1 stop
Depart: Sun Nov 19 2017 Return: Mon Nov 27 2017 Trip spans 9 days
WestJet
WestJet
STL
1:59p
YUL
4:06a
14h 07m
1 stop
YUL
8:00a
STL
8:26a
24h 26m
1 stop
Depart: Thu Oct 5 2017 Return: Tue Oct 10 2017 Trip spans 6 days
Delta
Delta
STL
2:03a
YUL
9:21a
7h 18m
1 stop
YUL
5:50a
STL
10:14a
4h 24m
1 stop
Depart: Fri Nov 24 2017 Return: Mon Nov 27 2017 Trip spans 4 days
Air Canada
Air Canada
STL
12:50p
YUL
6:13p
5h 23m
1 stop
YUL
2:55p
STL
7:59p
5h 04m
1 stop
Depart: Tue Sep 19 2017 Return: Sun Sep 24 2017 Trip spans 6 days
American Airlines
American Airlines
STL
12:10p
YUL
5:18p
5h 08m
1 stop
YUL
2:25a
STL
8:14a
5h 49m
1 stop
Depart: Fri Oct 20 2017 Return: Mon Oct 23 2017 Trip spans 4 days
Delta
Delta
STL
10:50a
YUL
5:07p
6h 17m
1 stop
YUL
2:30p
STL
8:35p
6h 05m
1 stop
Depart: Sat Nov 25 2017 Return: Mon Nov 27 2017 Trip spans 3 days
Air Canada
Air Canada
STL
1:00a
YUL
6:13a
5h 13m
1 stop
YUL
2:55p
STL
7:59p
5h 04m
1 stop
Depart: Wed Oct 4 2017 Return: Fri Oct 13 2017 Trip spans 10 days
WestJet
WestJet
STL
6:30a
YUL
11:15a
4h 45m
1 stop
YUL
2:20p
STL
9:10a
18h 50m
1 stop
Depart: Sun Oct 1 2017 Return: Thu Oct 5 2017 Trip spans 5 days
United
United
STL
2:17p
YUL
6:57p
4h 40m
1 stop
YUL
2:00a
STL
6:49a
4h 49m
1 stop
Depart: Mon Sep 18 2017 Return: Thu Sep 21 2017 Trip spans 4 days
Delta
Delta
STL
1:09p
YUL
6:58p
5h 49m
1 stop
YUL
8:55a
STL
6:10p
9h 15m
2 stops
* Prices are per person and are for e–tickets and include all taxes & fees in USD.

We attempt to get accurate prices, however, prices are not guaranteed.

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.

We compile tonnes of data for you
Our service lets you quickly and easily compare results from hundreds of travel sites at once. In this sense, KAYAK is a search engine and we can't guarantee prices we find.

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.

If you have more questions or if you have a bad price to report to us,
please send us an email and someone from our team will get back to you promptly.

Airports
Origin

St. Louis
$283
Destination

Montreal
$283