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Flights to Lambert-St Louis

C$ 184 Cheap flights to St. Louis

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to St. Louis departing on 24/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Canada to St. Louis

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:15 a.m. - 11:33 p.m.
YYZ
-
STL
17h 18m1 stop
Multiple Airlines Logo
8:59 a.m. - 2:20 p.m.
STL
-
YYZ
28h 21m1 stop
C$ 304Multiple Airlines
Tue, 3 Feb - Sun, 8 Feb
Multiple Airlines Logo
3:40 p.m. - 6:51 a.m.
YYZ
-
STL
16h 11m2 stops
Multiple Airlines Logo
8:59 a.m. - 2:20 p.m.
STL
-
YYZ
28h 21m1 stop
C$ 319Multiple Airlines
Tue, 3 Feb - Sun, 8 Feb
Air Canada Logo
9:00 a.m. - 3:29 p.m.
YHZ
-
STL
8h 29m1 stop
Air Canada Logo
4:05 p.m. - 12:06 a.m.
STL
-
YHZ
6h 01m1 stop
C$ 381Air Canada
Tue, 27 Jan - Mon, 2 Feb
United Airlines Logo
3:15 p.m. - 10:58 p.m.
YHZ
-
STL
9h 43m2 stops
United Airlines Logo
6:40 p.m. - 2:31 p.m.
STL
-
YHZ
17h 51m2 stops
C$ 389United Airlines
Tue, 27 Jan - Mon, 2 Feb
Air Canada Logo
6:55 a.m. - 3:29 p.m.
YHZ
-
STL
10h 34m2 stops
Air Canada Logo
4:05 p.m. - 12:06 a.m.
STL
-
YHZ
6h 01m1 stop
C$ 394Air Canada
Tue, 27 Jan - Mon, 2 Feb
United Airlines Logo
5:11 p.m. - 10:58 p.m.
YOW
-
STL
6h 47m1 stop
United Airlines Logo
7:00 a.m. - 1:32 p.m.
STL
-
YOW
5h 32m1 stop
C$ 418United Airlines
Thu, 8 Jan - Mon, 12 Jan
WestJet Logo
6:00 a.m. - 8:06 p.m.
YHZ
-
STL
16h 06m2 stops
WestJet Logo
1:18 p.m. - 1:41 a.m.
STL
-
YHZ
10h 23m2 stops
C$ 502WestJet
Mon, 26 Jan - Wed, 28 Jan
WestJet Logo
6:00 a.m. - 8:06 p.m.
YHZ
-
STL
16h 06m2 stops
WestJet Logo
1:18 p.m. - 1:41 a.m.
STL
-
YHZ
10h 23m2 stops
C$ 531WestJet
Mon, 26 Jan - Wed, 28 Jan
Delta Logo
6:30 a.m. - 4:45 p.m.
YYC
-
STL
9h 15m1 stop
Delta Logo
5:25 p.m. - 8:54 p.m.
STL
-
YYC
28h 29m1 stop
C$ 535Delta
Thu, 22 Jan - Mon, 26 Jan
Delta Logo
6:30 a.m. - 4:45 p.m.
YYC
-
STL
9h 15m1 stop
Delta Logo
6:10 a.m. - 8:54 p.m.
STL
-
YYC
15h 44m1 stop
C$ 546Delta
Thu, 22 Jan - Mon, 26 Jan

momondo Fare Finder

 
Locate flights to Lambert-St Louis that fit your budget, with regularly updated fares and availability. In the last 7 days, momondo users made a total of 96,600 searches and data was last updated on 17 December 2025.
Use the filters below to find and compare flights to St. Louis that are best for you.

Fly from

Route

Depart

Return

Price

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 3/2

7:15 a.m.-11:33 p.m.

1 stop17h 18m

Lambert-St Louis

Sun 8/2

8:59 a.m.-2:20 p.m.

1 stop28h 21m

C$ 304

TorontoSt. Louis

YYZ - STL

YYZSTL

Toronto Pearson Intl

Tue 3/2

3:40 p.m.-6:51 a.m.

2 stops16h 11m

Lambert-St Louis

Sun 8/2

8:59 a.m.-2:20 p.m.

1 stop28h 21m

C$ 319

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

9:00 a.m.-3:29 p.m.

1 stop8h 29m

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

C$ 381

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

3:15 p.m.-10:58 p.m.

2 stops9h 43m

Lambert-St Louis

Mon 2/2

6:40 p.m.-2:31 p.m.

2 stops17h 51m

C$ 389

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Tue 27/1

6:55 a.m.-3:29 p.m.

2 stops10h 34m

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

C$ 394

OttawaSt. Louis

YOW - STL

YOWSTL

Ottawa

Thu 8/1

5:11 p.m.-10:58 p.m.

1 stop6h 47m

Lambert-St Louis

Mon 12/1

7:00 a.m.-1:32 p.m.

1 stop5h 32m

C$ 418

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 26/1

6:00 a.m.-8:06 p.m.

2 stops16h 06m

Lambert-St Louis

Wed 28/1

1:18 p.m.-1:41 a.m.

2 stops10h 23m

C$ 502

HalifaxSt. Louis

YHZ - STL

YHZSTL

Halifax Intl

Mon 26/1

6:00 a.m.-8:06 p.m.

2 stops16h 06m

Lambert-St Louis

Wed 28/1

1:18 p.m.-1:41 a.m.

2 stops10h 23m

C$ 531

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 22/1

6:30 a.m.-4:45 p.m.

1 stop9h 15m

Lambert-St Louis

Mon 26/1

5:25 p.m.-8:54 p.m.

1 stop28h 29m

C$ 535

CalgarySt. Louis

YYC - STL

YYCSTL

Calgary

Thu 22/1

6:30 a.m.-4:45 p.m.

1 stop9h 15m

Lambert-St Louis

Mon 26/1

6:10 a.m.-8:54 p.m.

1 stop15h 44m

C$ 546

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to St. Louis from

St. Louis flights insights and trends

Explore insights for your St. Louis flight to craft the best travel plan

What is the cheapest month to fly to St. Louis?

The month of June is, on average, the cheapest month to fly to St. Louis from Canada, with most prices found around C$ 512. If you don’t want to visit St. Louis in June, then you should wait until August to fly from Canada, when ticket prices are also cheap, with an average price of C$ 546.

What is the absolute cheapest flight to St. Louis?

See prices from:

What is the cheapest day to depart on your flight to St. Louis?

Our data shows that Thursday is the least expensive day to fly to St. Louis. Tickets to fly out on this day can be as low as C$ 559. The most expensive day to fly to St. Louis is Monday, with ticket prices averaging around C$ 762.

What is the cheapest time of day to depart on your flight to St. Louis?

The cheapest time of day to fly to St. Louis is in the morning when flights can be purchased for as low as C$ 539. If you have a flexible travel schedule, then try to avoid flying at noon when prices are C$ 663 on average. Flights to St. Louis from Canada at noon are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to St. Louis?

You are more likely to see cheaper flights to St. Louis from Canada when booking weeks ahead of your departure date. In general, you can expect to find flights to St. Louis for around C$ 650 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to St. Louis from Canada for as low as C$ 495 on momondo.

Cheapest flights to Lambert-St Louis

Find the cheapest flights to Lambert-St Louis from your nearest city or airport
Find Flights from Toronto Pearson Intl Airport to St. Louis
CHEAPEST MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTJune17% cheaperFlying from Toronto Pearson Intl Airport to St. Louis costs on average just C$ 542 in June
MOST EXPENSIVE MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTFebruary12% more expensiveIt costs about C$ 731 for flights to St. Louis from Toronto Pearson Intl Airport in February
MOST POPULAR MONTH TO FLY TO ST. LOUIS FROM TORONTO PEARSON INTL AIRPORTMay393% more users visitedMore momondo users searched in flights to St. Louis from Toronto Pearson Intl Airport in May than any other month

Cheap St. Louis flight deals and tips

Summary info about St. Louis flight prices, duration and airlines

Best One-Way Price

C$ 184

Best Round-Trip Price

C$ 304

Fastest flight time

7h 04m

Popular in

June
The best one-way flight price to St. Louis from Canada in the last 72 hours is C$ 184 (Calgary to Lambert-St Louis).
Search Deals
The best round-trip flight price to St. Louis from Canada in the last 72 hours is C$ 304 (Toronto Pearson Intl to Lambert-St Louis).
Search Deals
The fastest flight to St. Louis from Canada takes 7h 04m (Ottawa to Lambert-St Louis).
Search Deals
June has the highest demand for flights to St. Louis, with a 2% price increase on average.
Search Deals

Frequently asked questions about flying to St. Louis

Is there an alternative airport near St. Louis?

Belleville Airport, Marion Williamson County Airport or Springfield Capital Airport can be an alternative airport used for travel to St. Louis.

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

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

How many operators does momondo search for flights to Lambert-St Louis Airport?

As of December 2025, there are 6 operators available to choose from for flights to Lambert-St Louis Airport.

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

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 to Lambert-St Louis Airport.

What documentation or ID do you need to fly to Lambert-St Louis Airport?

The travel and health documents you'll need for your trip to Lambert-St Louis Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Lambert-St Louis Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Chesterfield
Litchfield

Why use momondo?

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

It is quick and easy to find flights to St. Louis on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to St. Louis that suits you.

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

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

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight to St. Louis.

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

Of course. momondo tracks the price of St. Louis flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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