Find Cheap Flights from Lambert-St Louis to Toronto (STL - YTO)

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Good to Know

Average price:
C$ 471
(avg. price over the last 2 weeks)
Good Deal:
C$ 230
or less (round trip)

When to Book Flights from Lambert-St Louis to Toronto

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 C$ 230 or less.
The cheapest flight from Lambert-St Louis to Toronto was found, on average, 32 days before departure.
Book at least 3 weeks before departure in order to get a below-average price.
Morning departure is around 4% 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 Toronto Flights

How long does a flight from Lambert-St Louis to Toronto take?
An average nonstop flight takes 3h 39m, covering a distance of 1067 km.
How many flights are there between Lambert-St Louis and Toronto?
There are 31 (nonstop) flights between Lambert-St Louis and Toronto per week, averaging 5 per day.
Which airlines provide the cheapest flights from Lambert-St Louis to Toronto?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines (C$ 381) and Delta (C$ 407)
Do I need a passport to fly between Lambert-St Louis and Toronto?
Yes.
Which airlines fly most frequently between Lambert-St Louis and Toronto?
Air Canada (2 times daily), United (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly from Lambert-St Louis to Toronto?
For Lambert-St Louis to Toronto, Monday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Toronto back to Lambert-St Louis, the best deals are generally found on Wednesday, with Friday being the most expensive.

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

Airports
Origin
St. Louis
C$ 381
only
C$ 381
Destination
Toronto
C$ 381
only
C$ 381
Mon, 19 Mar
STL
YYZ
12h 11m
Tue, 27 Mar
YYZ
STL
6h 00m
C$ 381
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 12 Jun
STL
YYZ
3h 54m
Tue, 19 Jun
YYZ
STL
6h 21m
C$ 407
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
DTW
Excellent 10.0

Pls see above

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

Tue, 20 Mar
STL
YYZ
6h 42m
Tue, 27 Mar
YYZ
STL
9h 29m
C$ 381
Trip: 8 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 17 Aug
STL
YYZ
3h 41m
Sat, 8 Sep
YYZ
STL
5h 32m
C$ 407
Trip: 23 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

Wed, 21 Mar
STL
YYZ
5h 47m
Tue, 27 Mar
YYZ
STL
8h 03m
C$ 381
Trip: 7 days
Overall 0.0 Poor
Based on 0 reviews
Thu, 31 May
STL
YYZ
7h 40m
Mon, 4 Jun
YYZ
STL
3h 31m
C$ 417
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

Thu, 22 Mar
STL
YYZ
8h 22m
Tue, 27 Mar
YYZ
STL
9h 29m
C$ 381
Trip: 6 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 23 Mar
STL
YYZ
13h 31m
Tue, 27 Mar
YYZ
STL
8h 03m
C$ 381
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 28 Feb
STL
YYZ
3h 39m
Wed, 7 Mar
YYZ
STL
3h 47m
C$ 433
Trip: 8 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

Sat, 24 Mar
STL
YYZ
5h 17m
Tue, 27 Mar
YYZ
STL
9h 29m
C$ 381
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Fri, 2 Mar
STL
YYZ
5h 49m
Tue, 6 Mar
YYZ
STL
3h 47m
C$ 433
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

SJC
SLC
Excellent 8.8

Good clean aircraft. Fairly comfortable seats. Even had a power outlet in my row. Not too bad for an aircraft from the late 70s.

for some reason, i had to pay to gate check a bag. It didnt seem like anyone else did while boarding my flight.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
DTW
Excellent 10.0

Pls see above

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

Thu, 12 Apr
STL
YYZ
6h 30m
Mon, 16 Apr
YYZ
STL
5h 12m
C$ 381
Trip: 5 days
Overall 0.0 Poor
Based on 0 reviews
Sun, 11 Mar
STL
YYZ
4h 52m
Fri, 16 Mar
YYZ
STL
4h 53m
C$ 433
Trip: 5 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

BOS
ATL
Okay 4.0

Comfort Plus allowed us to board early, useful USB ports.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

Mon, 16 Apr
STL
YYZ
13h 26m
Thu, 19 Apr
YYZ
STL
10h 58m
C$ 381
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Tue, 20 Mar
STL
YYZ
5h 17m
Sun, 25 Mar
YYZ
STL
5h 10m
C$ 433
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

Fri, 20 Apr
STL
YYZ
6h 28m
Mon, 23 Apr
YYZ
STL
6h 32m
C$ 381
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Wed, 21 Mar
STL
YYZ
3h 44m
Mon, 26 Mar
YYZ
STL
5h 43m
C$ 433
Trip: 6 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
DTW
YOW
Excellent 9.3

Please see above. Sherry was amazing

Plane was small and older but it was a short flight

BOS
JFK
Excellent 9.3

The volume controls on the tv we’re pretty poor. Was either too loud or too soft with only 5-6 volume settings.

SMF
ATL
Excellent 8.6

The crew were so polite and happy!

Those seats! UGH!

ATL
JNB
Okay 4.0

Aircraft seemed shabby despite refresh of Comfort Plus, food was really mediocre. Steer clear of the Asian Veg option.

ECP
ATL
Excellent 9.6

We have been on 6 flights over the last 8 days, all with Delta and we have already started telling people how wonderful the service was. Sherry on this last flight was amazing, working so hard all by herself as our flight attendant. We were very impressed. And the pilots all came out to say goodbye and thank you. All very nice...esp for me who needed some wheelchair assistance. We will certainly fly with you again in the future.

Smaller plane but ok for short flight

Fri, 27 Apr
STL
YYZ
12h 06m
Mon, 30 Apr
YYZ
STL
5h 12m
C$ 381
Trip: 4 days
Overall 0.0 Poor
Based on 0 reviews
Thu, 22 Mar
STL
YYZ
3h 44m
Sun, 25 Mar
YYZ
STL
5h 10m
C$ 433
Trip: 4 days
7.8GoodShow reviews
Overall 7.8 Good
Based on 16027 reviews
Overall
8.0
Boarding
8.1
Comfort
7.8
Crew
8.4
Entertainment
7.5
Food
7.4
ATL
MEX
Excellent 10.0

Flight was on time, crew was friendly, plane was clean, and boarding was painless and efficient. Food was served which was a huge plus. I appreciate having a choice of almonds for a snack.

BOS
BNA
Excellent 8.0

Service vey Good. Nice choices. Comfort seating very nice

WiFi awful. Useless.

GDL
ATL
Excellent 9.0

Staff was great!

No TV for movies.

ATL
DTW
Excellent 10.0

Pls see above

DTW
MEX
Excellent 8.3

Even though I was disappointed by not being able to get the boarding passes from Delta for Aeromexico’s connecting flight to Bogota, I had an agent greet me after customs in Mexico to issue the boarding pass so I could use the transfer flight line. Excellent service throughout the entire trip.

Confusion over my boarding pass at the Delta terminal in Detroit.

Tue, 1 May
STL
YYZ
4h 02m
Wed, 9 May
YYZ
STL
9h 27m
C$ 381
Trip: 9 days
Overall 0.0 Poor
Based on 0 reviews
Show more results

Lambert-St Louis to Toronto Flight Information

Flights Arrive in Toronto
Flights Depart from Lambert-St Louis
Flight Price C$ 381
Distance 1067 km
Airlines Delta
*
Prices are per person, are for e–tickets and include all taxes & fees in CAD.

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Here's why:

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At KAYAK we don’t set the prices, so it’s not possible for us to guarantee what other companies are selling.

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Why aren’t prices accurate 100% of the time?
Prices on airline seats, hotel rooms and car rentals can change frequently. Several people may also be trying to buy the same travel option simultaneously. As a result, you may find, on occasion, that certain prices are no longer available.

If you have more questions or if you have a bad price to report to us,
please send us an and someone from our team will get back to you promptly.

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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.