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

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Tue 12/19
Tue 12/26
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Good to Know

Average Price:
$371
(avg. price over the last 2 weeks)
Good Deal:
$234
or less (round trip)

When to Book Flights from Lambert-St Louis to Montreal

Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $233 or less.
The cheapest flight from Lambert-St Louis to Montreal was found 47 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 5% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Lambert-St Louis to Montreal Flights

How long does a flight from Lambert-St Louis to Montreal take?
An average nonstop flight takes 5h 13m, covering a distance of 976 miles.
Which airlines provide the cheapest flights from Lambert-St Louis to Montreal?
In the past 3 days, the cheapest round-trip tickets were found on Air Canada ($268) and Multiple Airlines ($319)
Do I need a passport to fly between Lambert-St Louis and Montreal?
Yes.

Book cheap flights from Lambert-St Louis to Montreal (round-trip)

Airports
Origin
St. Louis
$268
only
$268
Destination
Montreal
$268
only
$268
Sat, Mar 24
STL
YUL
6h 13m
Tue, Mar 27
YUL
STL
7h 16m
Trip: 4 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20300 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
PHX
YYZ
Okay 5.5

The pilot made the flight a fast time. The airfare was a good price.

The seat leg room was too cramped and the plane was older with a noisy cabin in the rear third area

YVR
LHR
Mediocre 2.0

...because Air Canada screwed each of them up. Truly my worst flying experience in every way possible, and it isn't even close.

ORD
YYZ
Excellent 10.0

I got upgraded to first class!

YUL
YHZ
Mediocre 2.0

Nothing

The fact air canada booted me and my year and a half year old off the plane. They gave me no compensation for the fact that they did this. So not impressed I never made it to Montreal

NRT
YVR
Good 6.0

Air Canada crew is always courteous

I have taken this same flight once a year for the last three years and it is always late to depart from NRT to YVR making the costumes and immigration process a hurried hassle for this of us with connecting flights. YVR crew got me and another couple to our next flight on time, but it has already boarded.

Wed, Feb 21
STL
YUL
7h 11m
Sun, Feb 25
YUL
STL
6h 36m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 16
STL
YUL
6h 13m
Sun, Jan 21
YUL
STL
7h 16m
Trip: 6 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20300 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YVR
LAS
Good 7.0

Crew is always courteous

I barely made it on time because my prior flight was delayed

LGA
YUL
Excellent 9.0

Flight attendant very pleased

Can't use the entertainment, the jack to connect the headset was broken

YVR
LHR
Mediocre 2.0

...because Air Canada screwed each of them up. Truly my worst flying experience in every way possible, and it isn't even close.

LAS
YYZ
Excellent 10.0

Video not working

YUL
YHZ
Mediocre 2.0

Nothing

The fact air canada booted me and my year and a half year old off the plane. They gave me no compensation for the fact that they did this. So not impressed I never made it to Montreal

Wed, Feb 21
STL
YUL
5h 33m
Sun, Feb 25
YUL
STL
6h 16m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20300 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
NRT
YVR
Good 6.0

Air Canada crew is always courteous

I have taken this same flight once a year for the last three years and it is always late to depart from NRT to YVR making the costumes and immigration process a hurried hassle for this of us with connecting flights. YVR crew got me and another couple to our next flight on time, but it has already boarded.

PHX
YYZ
Okay 5.5

The pilot made the flight a fast time. The airfare was a good price.

The seat leg room was too cramped and the plane was older with a noisy cabin in the rear third area

YYZ
YUL
Mediocre 2.0

Nothing

The fact air canada booted me and my year and a half year old off the plane. They gave me no compensation for the fact that they did this. So not impressed

YYC
EWR
Good 7.3

After landing in Newar. One had to exit into the terminal and in order to connect, I had to go through TSA again, and the line was way too long. I had 2 hrs between flights and was able to make the connection, but I'm not sure if I only had one hour... I would have probably missed my connection.

LGA
YUL
Excellent 9.0

Flight attendant very pleased

Can't use the entertainment, the jack to connect the headset was broken

Fri, Dec 22
STL
YUL
6h 35m
Tue, Dec 26
YUL
STL
5h 36m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Dec 29
STL
YUL
5h 13m
Tue, Jan 2
YUL
STL
9h 06m
Trip: 5 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20300 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
YUL
Mediocre 2.0

Nothing

The fact air canada booted me and my year and a half year old off the plane. They gave me no compensation for the fact that they did this. So not impressed

YVR
LAS
Good 7.0

Crew is always courteous

I barely made it on time because my prior flight was delayed

PBI
YUL
Good 7.2

My first flight with Air Canada (TCA) was 64 years ago in 1953 and the airline still feels safe and solid.

Food seemed OK but we both suffered severe stomach upset after the flight. From gate to gate in Montreal was many thousand steps. Crazy.

YVR
LHR
Mediocre 2.0

...because Air Canada screwed each of them up. Truly my worst flying experience in every way possible, and it isn't even close.

ORD
YYZ
Excellent 10.0

I got upgraded to first class!

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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.