Flights North America Canada Quebec Montreal St. Louis to Montreal

Cheap flights from St. Louis to Montreal

Round-trip
Economy
St. Louis (STL)
Montreal (YMQ)
Wed 6/16
Wed 6/23
Any month
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Flight information for St. Louis to Montreal
(STL to YMQ)

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal
Best Price Found$332The best flight deal from St. Louis to Montreal found on momondo in the last 72 hours is $332
Fastest flight time5h 23mThe fastest flight from St. Louis to Montreal takes 5h 23m
Direct flightsNoneThere are no direct flights from St. Louis to Montreal. Popular non-direct route for this connection is Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl.
Airports in Montreal2 airportsThere are 2 airports near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL), Montreal St Hubert (YHU)

How to get the cheapest flight ticket from St. Louis to Montreal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from St. Louis to Montreal?

March
The cheapest time of year to fly to Montreal from St. Louis is March. Most expensive is October

What is the cheapest day to depart St. Louis for Montreal?

Wednesday
The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday

When is the cheapest time to fly from St. Louis to Montreal?

in the afternoon
St. Louis to Montreal flights are approximately 18% more expensive at noon than in the afternoon

What is the cheapest airline that flies to Montreal from St. Louis?

United Airlines
United Airlines, Delta, and American Airlines are the most popular carriers operating from St. Louis to Montreal

What is the cheapest St. Louis to Montreal flight route?

Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl
Fly from Lambert-St Louis to Montreal Pierre Elliott Trudeau Intl for the best St. Louis - Montreal flight prices
STL
Lambert-St Louis
YUL
Montreal Pierre Elliott Trudeau Intl

How far in advance should you book St. Louis to Montreal flights?

33 days before
The cheapest time to buy a flight from St. Louis to Montreal is approximately 33 days to departure
60
Days before departure
0

Easily compare round-trip flights from St. Louis to Montreal

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from St. Louis to Montreal by changing tabs
United Airlines
Jun 11
STL7:45 amLambert-St Louis
5h 33m
1 stop
YUL1:18 pmMontreal Pierre Elliott Trudeau Intl
Jun 14
YUL4:30 amMontreal Pierre Elliott Trudeau Intl
4h 25m
1 stop
STL8:55 amLambert-St Louis
Multiple Airlines
Oct 13
STL12:16 pmLambert-St Louis
5h 06m
1 stop
YUL5:22 pmMontreal Pierre Elliott Trudeau Intl
Nov 27
YUL5:30 amMontreal Pierre Elliott Trudeau Intl
6h 00m
1 stop
STL11:30 amLambert-St Louis
American Airlines
Aug 23
STL10:25 amLambert-St Louis
6h 57m
1 stop
YUL5:22 pmMontreal Pierre Elliott Trudeau Intl
Aug 31
YUL10:22 amMontreal Pierre Elliott Trudeau Intl
5h 32m
1 stop
STL3:54 pmLambert-St Louis

Find the cheapest one-way flights from St. Louis to Montreal

If you're looking for one-way flights from St. Louis to Montreal, view some of our deals below provided by American Airlines
Multiple Airlines
Oct 13
STL5:25 amLambert-St Louis
8h 55m
3 stops
YUL2:20 pmMontreal Pierre Elliott Trudeau Intl
American Airlines
Oct 13
STL1:17 amLambert-St Louis
11h 31m
2 stops
YUL12:48 pmMontreal Pierre Elliott Trudeau Intl
American Airlines
Oct 13
STL1:17 amLambert-St Louis
16h 05m
1 stop
YUL5:22 pmMontreal Pierre Elliott Trudeau Intl

Best airlines flying from St. Louis to Montreal

Compare and see reviews for airlines that fly from St. Louis to Montreal with momondo
AirlineRatingFree CancellationPrice
Delta
PriceFrom $117
Free Cancellation
Rating
8.1
8.2

Boarding

8.4

Comfort

8.2

Crew

7.8

Entertainment

8.0

Food

Reviews

Cons: Wouldn't let us on the flight when there was plenty of time to get there. Manager was arrogant and slow - didn't care. Poor policies at that airport.

1 / 10
American Airlines
PriceFrom $130
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.9

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Yes made sure mask was in place

Cons: No

1 / 10
United Airlines
PriceFrom $131
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.0

Food

Reviews

Pros: Nothing

Cons: Very uncomfortable flight

1 / 10
Air Canada
PriceFrom $143
Free Cancellation
Rating
7.1
7.3

Boarding

7.2

Comfort

7.8

Crew

7.2

Entertainment

5.9

Food

Reviews

Pros: I managed to get a comfortable seating

1 / 10
WestJet
PriceFrom $183
Free Cancellation
Rating
7.6
7.7

Boarding

7.6

Comfort

8.0

Crew

7.6

Entertainment

6.7

Food

Reviews

Pros: It was on time and not overbooked

Cons: Nothing it was economy

1 / 10

Are airlines flying from Lambert-St Louis to Montreal offering flexible cancellation due to COVID-19?

Some of our partner airlines flying from Lambert-St Louis to Montreal are adopting new policies due to the global impact of COVID-19. Some of the airlines that may be waiving their cancellation fees are American Airlines, Delta, and Air Canada. You can search for the full list of airlines like American Airlines that are offering this flexibility.


Alternative routes for St. Louis to Montreal

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Kansas City to Montreal Flights
Fastest flight time
5h 42m
Cheapest price
$332

Flights from St. Louis to:

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