Find Cheap Flights from Lambert-St Louis to Montreal Elliott Trudeau (STL - YUL)

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Mon 2/19
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Good to Know

Average Price:
$441
(avg. price over the last 2 weeks)
Good Deal:
$268
or less (round trip)

When to Book Flights from Lambert-St Louis to Montreal Elliott Trudeau

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 $268 or less.
The cheapest flight from Lambert-St Louis to Montreal Elliott Trudeau was found 81 days before departure, on average.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 12% 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 Elliott Trudeau Flights

How long does a flight from Lambert-St Louis to Montreal Elliott Trudeau take?
An average nonstop flight takes 4h 55m, covering a distance of 967 miles.
Which airlines provide the cheapest flights from Lambert-St Louis to Montreal Elliott Trudeau?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($268) and Delta ($287)
Do I need a passport to fly between Lambert-St Louis and Montreal Elliott Trudeau?
Yes.
What’s the cheapest day of the week to fly Lambert-St Louis to Montreal Elliott Trudeau?
For Lambert-St Louis to Montreal Elliott Trudeau, Monday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Montreal Elliott Trudeau back to Lambert-St Louis, the best deals are generally found on Monday, with Thursday being the most expensive.

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

Airports
Origin
St. Louis
$268
only
$268
Destination
Montreal
$268
only
$268
Mon, Mar 5
STL
YUL
5h 13m
Wed, Mar 7
YUL
STL
14h 19m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Mar 15
STL
YUL
5h 26m
Tue, Mar 20
YUL
STL
5h 58m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
AMS
Good 7.0

The vegan meal was not good

CUN
MSP
Excellent 10.0

The flights were on time and they did two drink and snack services. Great crew!

ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

GPT
ATL
Good 6.0

The crew was organized and made us all laugh, and had a great personality.

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average.

Sun, Mar 4
STL
YUL
6h 42m
Wed, Mar 7
YUL
STL
14h 19m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 3
STL
YUL
5h 41m
Tue, May 8
YUL
STL
8h 06m
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
GPT
ATL
Good 6.0

The crew was organized and made us all laugh, and had a great personality.

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average.

STL
ATL
Okay 4.6

They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware

ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

CUN
MSP
Excellent 10.0

The flights were on time and they did two drink and snack services. Great crew!

AMS
PDX
Mediocre 3.0

NOTHING

Tue, Mar 6
STL
YUL
6h 35m
Wed, Mar 7
YUL
STL
14h 19m
Trip: 2 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jun 19
STL
YUL
5h 19m
Tue, Jun 26
YUL
STL
6h 21m
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
AMS
Good 7.0

The vegan meal was not good

OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

Sun, Mar 4
STL
YUL
6h 42m
Fri, Mar 9
YUL
STL
4h 50m
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Mon, Mar 5
STL
YUL
6h 33m
Fri, Mar 9
YUL
STL
4h 50m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Mar 6
STL
YUL
4h 55m
Fri, Mar 9
YUL
STL
6h 02m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 30
STL
YUL
6h 23m
Sun, Apr 1
YUL
STL
4h 50m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
AMS
PDX
Mediocre 3.0

NOTHING

STL
ATL
Okay 4.6

They changed my flight to a different one departing 2 hours earlier and did not notify me! The original flight was still available & they would not let me take it despite my reservation paper work. CRAZY! I have a two hour drive to the airport this gave me the option to leave home at 2:30am or go the night before and pay for a hotel. Flight was managed by DELTA who also did not care! All involved blamed each other. Beware

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

ATL
EYW
Excellent 8.6

Once we hit the coast we skirted down the coas of Florida which provided a spectacular view. The approach and landing at Key West airport was thrilling and absolutely perfect. We’ve flown Delta many times but this was our first but not last time to Key West.

Nothing

ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

Mon, Mar 19
STL
YUL
16h 10m
Thu, Mar 22
YUL
STL
4h 50m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, Apr 19
STL
YUL
5h 34m
Sat, Apr 21
YUL
STL
6h 40m
Trip: 3 days
Overall 0.0 Poor
Based on 0 reviews
Fri, Mar 23
STL
YUL
5h 26m
Sun, Mar 25
YUL
STL
5h 23m
Trip: 3 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

ATL
EYW
Excellent 8.6

Once we hit the coast we skirted down the coas of Florida which provided a spectacular view. The approach and landing at Key West airport was thrilling and absolutely perfect. We’ve flown Delta many times but this was our first but not last time to Key West.

Nothing

ATL
CUN
Good 6.3

The crew was outstanding, polite, and professional.

Seats were comfortable, but much too crowded. The seating would have been very good for children but for adults it was much too crowded. My knees were up against the seat in front and my back is sore from having to spend most of the trip twisted to try to fit into the small space. Also, my seat was is row 16 and was called a “premium” seat and I was charged an extra $24 for it. I did not find it any different than all the seats around me. What was the extra charge for?

OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

Tue, Jun 5
STL
YUL
8h 02m
Sat, Jun 9
YUL
STL
6h 03m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Mar 24
STL
YUL
5h 31m
Tue, Mar 27
YUL
STL
7h 40m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
AMS
PDX
Mediocre 3.0

NOTHING

MCI
LGA
Good 6.0

Too crowded overhead storage got filled right away. Had to place my bag under seat. Could not extend my legs.

ATL
EYW
Excellent 8.6

Once we hit the coast we skirted down the coas of Florida which provided a spectacular view. The approach and landing at Key West airport was thrilling and absolutely perfect. We’ve flown Delta many times but this was our first but not last time to Key West.

Nothing

GPT
ATL
Good 6.0

The crew was organized and made us all laugh, and had a great personality.

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average.

IND
MSP
Okay 4.3

Flight attendant from IND to Minneapolis must have had a rough evening or bad morning. Service in airplane is usually poor but this one was worse. Bumping most of the passenger when passing, handing drinks behind his back, not smiling.

Wed, Jun 6
STL
YUL
5h 41m
Thu, Jun 14
YUL
STL
6h 06m
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Thu, May 3
STL
YUL
5h 41m
Sun, May 6
YUL
STL
5h 15m
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

AMS
PDX
Mediocre 3.0

NOTHING

OKC
DTW
Excellent 10.0

As usual

Landing was a bit rough

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

CUN
MSP
Excellent 10.0

The flights were on time and they did two drink and snack services. Great crew!

Mon, Mar 5
STL
YUL
6h 33m
Thu, Mar 8
YUL
STL
6h 35m
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Sat, Jun 2
STL
YUL
5h 51m
Fri, Jun 15
YUL
STL
6h 08m
Trip: 14 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16068 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
ALB
Good 6.0

The crew was amazing. They were attentive and very professional

I upgraded my seat and paid extra for one with more room. And I wasn’t impressed with my upgrade, doesn’t feel like more leg than regular seats. Comfort was below average. The crew

IND
MSP
Okay 4.3

Flight attendant from IND to Minneapolis must have had a rough evening or bad morning. Service in airplane is usually poor but this one was worse. Bumping most of the passenger when passing, handing drinks behind his back, not smiling.

AMS
PDX
Mediocre 3.0

NOTHING

ATL
CUN
Good 6.3

The crew was outstanding, polite, and professional.

Seats were comfortable, but much too crowded. The seating would have been very good for children but for adults it was much too crowded. My knees were up against the seat in front and my back is sore from having to spend most of the trip twisted to try to fit into the small space. Also, my seat was is row 16 and was called a “premium” seat and I was charged an extra $24 for it. I did not find it any different than all the seats around me. What was the extra charge for?

AMS
JFK
Okay 5.6

Food was better than the usual airline food. We also got a Valentine's day chocolate.

seats too narrow, barely have room to sit and stand. No USB charger

Sun, Mar 4
STL
YUL
6h 42m
Thu, Mar 8
YUL
STL
6h 35m
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Lambert-St Louis to Montreal Elliott Trudeau Flight Information

Flights Arrive in Montreal Elliott Trudeau
Flights Depart from Lambert-St Louis
Flight Price $268
Distance 967 miles
Airlines Delta
*
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