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)
Thu 9/2
Thu 9/9
Any month
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Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Lambert-St Louis to Montreal.
View current Canada travel restrictions

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$344The best flight deal from St. Louis to Montreal found on momondo in the last 72 hours is $344
Fastest flight time4h 9mThe fastest flight from St. Louis to Montreal takes 4h 9m
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
Jan 1
STL10:15 amLambert-St Louis
4h 46m
1 stop
YUL3:01 pmMontreal Pierre Elliott Trudeau Intl
Jan 9
YUL11:50 amMontreal Pierre Elliott Trudeau Intl
5h 14m
1 stop
STL5:04 pmLambert-St Louis
Air Canada
Aug 24
STL2:40 amLambert-St Louis
4h 29m
1 stop
YUL7:09 amMontreal Pierre Elliott Trudeau Intl
Aug 31
YUL4:00 amMontreal Pierre Elliott Trudeau Intl
8h 47m
2 stops
STL12:47 pmLambert-St Louis
Multiple Airlines
Oct 7
STL10:20 amLambert-St Louis
7h 06m
1 stop
YUL5:26 pmMontreal Pierre Elliott Trudeau Intl
Oct 11
YUL10:34 amMontreal Pierre Elliott Trudeau Intl
7h 26m
1 stop
STL6:00 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 United Airlines and Air Canada
Air Canada
Sep 8
STL4:20 amLambert-St Louis
4h 35m
1 stop
YUL8:55 amMontreal Pierre Elliott Trudeau Intl
United Airlines
Oct 3
STL2:30 amLambert-St Louis
6h 25m
1 stop
YUL8:55 amMontreal Pierre Elliott Trudeau Intl
Air Canada
Aug 22
STL4:39 amLambert-St Louis
9h 35m
2 stops
YUL2:14 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
8.2
8.3

Boarding

8.5

Comfort

8.3

Crew

7.9

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

7.8

Crew

7.0

Entertainment

6.8

Food

Reviews

Pros: Delayed flight no reasons seems like American Airlines don’t know what to do in these situations

Cons: I believe this airlines should have figured the answer to this question by now.

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

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Pros: Everything! From ticketing agent to all the crew on our flight back were awesome. Thank you!

1 / 10
Air Canada
PriceFrom $143
Free Cancellation
Rating
7.4
7.6

Boarding

7.2

Comfort

7.9

Crew

7.2

Entertainment

5.8

Food

Reviews

Cons: The air conditioning

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

Boarding

7.6

Comfort

8.0

Crew

7.5

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.

How far is Lambert-St Louis to Montreal by plane?

The distance between Lambert-St Louis and Montreal is about 973.0 mi. A reasonable flight in good conditions will take 4h 35m.

Can I fly to Montreal from Lambert-St Louis right now?

Information is based on travel restrictions from Lambert-St Louis to Montreal

Most visitors from Lambert-St Louis will not be allowed to enter Montreal.

COVID-19 testing requirements
Visitors from Lambert-St Louis must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Montreal.

Quarantine requirements
Visitors from Lambert-St Louis are not required to quarantine after entering Montreal.

Documents
Compassionate entry for travellers and limited release from quarantine - Foreign nationals traveling without an advance written approval for an exemption of a border restriction may be denied entry into Canada.


Can I fly back to Lambert-St Louis from Montreal?

Returning to Lambert-St Louis from Montreal

COVID-19 testing requirements
Visitors from Montreal must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Lambert-St Louis.

Quarantine requirements
Visitors from Montreal are not required to quarantine after entering Lambert-St Louis.

If you are planning to travel to Montreal at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

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