Insights
Latest deals
FAQs

Cheap flights from St. Louis to Montreal from C$ 198

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Montreal departing on 23/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
From?
To?
Tue 2/4
Tue 9/4
"This year, momondo is the #1 place for airfares on the internet."

Cheap St. Louis to Montreal (STL to YMQ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Montreal

Best price found

C$ 198

Fastest flight time

2h 23m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun

Airports in Montreal

1 airport
The best one-way flight to Montreal from St. Louis in the past 72 hours is C$ 198. The best round-trip flight deal from St. Louis to Montreal found on momondo in the last 72 hours is C$ 632.
The fastest flight from St. Louis to Montreal takes 2h 23m
Direct flights go from St. Louis to Montreal on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Air Canada.
There is 1 airport near Montreal: Montreal Pierre Elliott Trudeau Intl (YUL)

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?

January. The cheapest time of year to fly to Montreal from St. Louis is January. The most expensive is August.

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

Monday. The cheapest day of the week is typically Monday. The most expensive is typically Monday

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

St. Louis to Montreal flights are currently only available in the afternoon

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

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

19 days before. The cheapest time to buy a flight from St. Louis to Montreal is approximately 19 days to departure

Can stopping save me money on St. Louis to Montreal flights?

You could potentially save up to 10% on your flight if you consider stops on a St. Louis to Montreal flight.

When you’re planning your trip from St. Louis to Montreal, the most popular airport-to-airport route is Lambert-St Louis Airport to Montreal Pierre Elliott Trudeau Intl Airport. The least expensive flight option from St. Louis to Montreal will typically be STL — YUL during the month of March with an average price of C$ 613 RT.

Lambert-St Louis Airport (STL) to Montreal Pierre Elliott Trudeau Intl Airport (YUL)C$ 613
Search

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
Multiple Airlines
7 Apr.
STL7:48 p.m.Lambert-St Louis
17h 52m
1 stop
YUL2:40 p.m.Montreal Pierre Elliott Trudeau Intl
9 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:40 p.m.Lambert-St Louis
Air Canada
9 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
12 May
YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl
7h 11m
1 stop
STL3:21 p.m.Lambert-St Louis
Delta
1 May
STL3:40 p.m.Lambert-St Louis
16h 27m
1 stop
YUL9:07 a.m.Montreal Pierre Elliott Trudeau Intl
4 May
YUL6:10 a.m.Montreal Pierre Elliott Trudeau Intl
12h 16m
1 stop
STL5:26 p.m.Lambert-St Louis
American Airlines
19 Apr.
STL4:01 p.m.Lambert-St Louis
16h 54m
1 stop
YUL9:55 a.m.Montreal Pierre Elliott Trudeau Intl
22 Apr.
YUL7:15 a.m.Montreal Pierre Elliott Trudeau Intl
16h 27m
1 stop
STL10:42 p.m.Lambert-St Louis
United Airlines
20 Jul.
STL6:16 a.m.Lambert-St Louis
6h 00m
1 stop
YUL1:16 p.m.Montreal Pierre Elliott Trudeau Intl
25 Jul.
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
WestJet
20 Jul.
STL5:25 p.m.Lambert-St Louis
36h 44m
2 stops
YUL7:09 a.m.Montreal Pierre Elliott Trudeau Intl
25 Jul.
YUL8:20 a.m.Montreal Pierre Elliott Trudeau Intl
25h 46m
2 stops
STL9:06 a.m.Lambert-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 Air Canada, Sun Country Air and United Airlines
Multiple Airlines
23 Apr.
STL7:16 p.m.Lambert-St Louis
19h 09m
2 stops
YUL3:25 p.m.Montreal Pierre Elliott Trudeau Intl
Sun Country Air
5 Jul.
STL6:10 p.m.Lambert-St Louis
25h 30m
1 stop
YUL8:40 p.m.Montreal Pierre Elliott Trudeau Intl
Air Canada
24 Apr.
STL6:00 a.m.Lambert-St Louis
15h 48m
2 stops
YUL10:48 p.m.Montreal Pierre Elliott Trudeau Intl

Search last-minute flights to Montreal from St. Louis

Find and compare round-trip flight prices for your last-minute flight from St. Louis to Montreal
Multiple Airlines
7 Apr.
STL7:48 p.m.Lambert-St Louis
17h 52m
1 stop
YUL2:40 p.m.Montreal Pierre Elliott Trudeau Intl
9 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:40 p.m.Lambert-St Louis
WestJet
10 Apr.
STL6:04 a.m.Lambert-St Louis
10h 26m
1 stop
YUL5:30 p.m.Montreal Pierre Elliott Trudeau Intl
14 Apr.
YUL7:10 a.m.Montreal Pierre Elliott Trudeau Intl
15h 13m
1 stop
STL9:23 p.m.Lambert-St Louis
American Airlines
7 Apr.
STL5:15 a.m.Lambert-St Louis
16h 29m
1 stop
YUL10:44 p.m.Montreal Pierre Elliott Trudeau Intl
9 Apr.
YUL10:35 a.m.Montreal Pierre Elliott Trudeau Intl
8h 27m
2 stops
STL6:02 p.m.Lambert-St Louis
C$ 1,091
Find similar
United Airlines
10 Apr.
STL10:10 a.m.Lambert-St Louis
10h 10m
2 stops
YUL9:20 p.m.Montreal Pierre Elliott Trudeau Intl
14 Apr.
YUL6:30 a.m.Montreal Pierre Elliott Trudeau Intl
8h 53m
2 stops
STL2:23 p.m.Lambert-St Louis
C$ 1,341
Find similar
Multiple Airlines
6 Apr.
STL11:39 a.m.Lambert-St Louis
26h 01m
1 stop
YUL2:40 p.m.Montreal Pierre Elliott Trudeau Intl
9 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:40 p.m.Lambert-St Louis
Multiple Airlines
7 Apr.
STL6:21 p.m.Lambert-St Louis
20h 04m
2 stops
YUL3:25 p.m.Montreal Pierre Elliott Trudeau Intl
9 Apr.
YUL6:45 a.m.Montreal Pierre Elliott Trudeau Intl
7h 55m
1 stop
STL1:40 p.m.Lambert-St Louis

Air Canada flights from St. Louis to Montreal

Our best Air Canada deals on St. Louis to Montreal flight tickets
Air Canada
9 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
12 May
YUL9:10 a.m.Montreal Pierre Elliott Trudeau Intl
7h 11m
1 stop
STL3:21 p.m.Lambert-St Louis
Air Canada
11 May
STL11:00 a.m.Lambert-St Louis
2h 23m
YUL2:23 p.m.Montreal Pierre Elliott Trudeau Intl
18 May
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
Air Canada
1 May
STL10:10 a.m.Lambert-St Louis
6h 08m
1 stop
YUL5:18 p.m.Montreal Pierre Elliott Trudeau Intl
4 May
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis

United Airlines flights from St. Louis to Montreal

Our best United Airlines deals on St. Louis to Montreal flight tickets
United Airlines
20 Jul.
STL6:16 a.m.Lambert-St Louis
6h 00m
1 stop
YUL1:16 p.m.Montreal Pierre Elliott Trudeau Intl
25 Jul.
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
United Airlines
1 Aug.
STL12:00 p.m.Lambert-St Louis
2h 23m
YUL3:23 p.m.Montreal Pierre Elliott Trudeau Intl
4 Aug.
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis
United Airlines
20 Jul.
STL12:00 p.m.Lambert-St Louis
2h 23m
YUL3:23 p.m.Montreal Pierre Elliott Trudeau Intl
25 Jul.
YUL7:30 p.m.Montreal Pierre Elliott Trudeau Intl
2h 35m
STL9:05 p.m.Lambert-St Louis

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

    The straight-line distance from Lambert-St Louis to Montreal is 1566.0 km. Flights usually cover this in 2h 23m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Montreal?

    Prices for flights from Lambert-St Louis Airport to Montreal were last updated today.

  • How old do you have to be to fly from Lambert-St Louis Airport to Montreal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Montreal.

  • What documentation or ID do you need to fly to Montreal?

    The necessary travel and health documents for your Montreal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.


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 time4h 53m
Cheapest priceC$ 560
St. Louis to Québec City Flights
Fastest flight time5h 55m
Cheapest priceC$ 791
Kansas City to Québec City Flights
Fastest flight time5h 18m
Cheapest priceC$ 834

Similar St. Louis to Montreal flights

Flexible with your destination? Broaden your search and find flights similar to your St. Louis to Montreal route

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Montreal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Montreal from St. Louis.

Can I find flights from St. Louis to Montreal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Montreal from St. Louis with this policy.

How can momondo help me find flights from St. Louis to Montreal?

Once you have performed a search for St. Louis to Montreal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from St. Louis to Montreal right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Montreal from St. Louis. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


An easier way to manage your Montreal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Early arrival? Instantly customize your results
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? Create a price alert to track prices.

Find better results for your stay in Canada

Fly into one of these airports located in Montreal
Airports listed have a maximum distance of 15.1 km from Montreal


Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 2/4
Tue 9/4
Email me momondo's favourite deals