$241 Cheap flights from Pierre Elliott Trudeau Intl. to Lambert-St. Louis Intl. (YUL to STL)

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Find The Best Dates To Fly from Pierre Elliott Trudeau Intl. to Lambert-St. Louis Intl.

Compare Flight Prices from Montreal to St. Louis

Affordable Airfare Tickets from YUL to STL Airport

The cheapest flights to Lambert-St. Louis Intl. found within the past 7 days were $422 round trip and $241 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Jun 18 - Tue, Jun 24
YUL
Montreal
STL
St. Louis
$422 Roundtrip, found 4 days ago
$422
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jun 18 from Montreal to St. Louis, returning Tue, Jun 24, priced at $422 found 4 days ago
Wed, Jun 18 - Sun, Jun 22
YUL
Montreal
STL
St. Louis
$443 Roundtrip, found 4 days ago
$443
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jun 18 from Montreal to St. Louis, returning Sun, Jun 22, priced at $443 found 4 days ago
Wed, Jun 18 - Fri, Jun 20
YUL
Montreal
STL
St. Louis
$454 Roundtrip, found 4 days ago
$454
Roundtrip
found 4 days ago
Select Delta flight, departing Wed, Jun 18 from Montreal to St. Louis, returning Fri, Jun 20, priced at $454 found 4 days ago
Thu, Jun 19 - Sun, Jun 22
YUL
Montreal
STL
St. Louis
$465 Roundtrip, found 4 days ago
$465
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Jun 19 from Montreal to St. Louis, returning Sun, Jun 22, priced at $465 found 4 days ago
Tue, Jun 17 - Fri, Jun 20
YUL
Montreal
STL
St. Louis
$473 Roundtrip, found 4 days ago
$473
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 17 from Montreal to St. Louis, returning Fri, Jun 20, priced at $473 found 4 days ago
Thu, Jun 19 - Sun, Jun 22
YUL
Montreal
STL
St. Louis
$476 Roundtrip, found 4 days ago
$476
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Jun 19 from Montreal to St. Louis, returning Sun, Jun 22, priced at $476 found 4 days ago
Fri, Jun 20 - Fri, Jun 20
YUL
Montreal
STL
St. Louis
$481 Roundtrip, found 4 days ago
$481
Roundtrip
found 4 days ago
Select Delta flight, departing Fri, Jun 20 from Montreal to St. Louis, returning Fri, Jun 20, priced at $481 found 4 days ago
Tue, Jun 17 - Thu, Jun 19
YUL
Montreal
STL
St. Louis
$485 Roundtrip, found 4 days ago
$485
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Jun 17 from Montreal to St. Louis, returning Thu, Jun 19, priced at $485 found 4 days ago
Thu, Jun 19 - Sun, Jun 22
YUL
Montreal
STL
St. Louis
$486 Roundtrip, found 4 days ago
$486
Roundtrip
found 4 days ago
Select American Airlines flight, departing Thu, Jun 19 from Montreal to St. Louis, returning Sun, Jun 22, priced at $486 found 4 days ago
Thu, Jun 19 - Sun, Jun 22
YUL
Montreal
STL
St. Louis
$488 Roundtrip, found 4 days ago
$488
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Jun 19 from Montreal to St. Louis, returning Sun, Jun 22, priced at $488 found 4 days ago

Lambert-St. Louis Intl. flight + hotel packages - economy flights

Price found within the past 48 hours. Click for updated prices.
The Knight Center at Washington University

The Knight Center at Washington University

2.5 out of 5
per person
Jun 5 - Jun 8
found 1 day ago
Roundtrip flight included
Montreal (YUL) to St. Louis (STL)
The Wildwood Hotel

The Wildwood Hotel

3.5 out of 5
per person
Jun 5 - Jun 8
found 1 day ago
Roundtrip flight included
Montreal (YUL) to St. Louis (STL)
Ameristar Casino Resort and Spa

Ameristar Casino Resort and Spa

4.5 out of 5
per person
Jun 5 - Jun 8
found 1 day ago
Roundtrip flight included
Montreal (YUL) to St. Louis (STL)
The Cheshire

The Cheshire

4 out of 5
per person
Jun 5 - Jun 8
found 1 day ago
Roundtrip flight included
Montreal (YUL) to St. Louis (STL)
Moonrise Hotel

Moonrise Hotel

4 out of 5
per person
Jun 5 - Jun 8
found 1 day ago
Roundtrip flight included
Montreal (YUL) to St. Louis (STL)
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Frequently asked questions

Can I catch a flight from YUL to St. Louis Lambert International Airport right now?
For info on any current STL quarantine requirements and travel advice, go to the Covid-19 Travel Advisor. Look before you arrange your flight, so you don’t get caught up.
Are there direct flights from Montreal Airport to Lambert Field?
If you’d prefer to travel quickly from Montreal Airport to Lambert Field, have a look at United Airlines, Air Canada and American Airlines. No airlines provide direct flights on this route, so you’ll have to make at least one stopover.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to St. Louis Lambert International Airport, please visit our Customer Service Portal.
How long is the flight from Montreal Airport to St. Louis Lambert International Airport?
The flight between Pierre Elliott Trudeau Intl. Airport (YUL) and Lambert-St. Louis Intl. Airport (STL) is approximately 4 hours and 35 minutes. Make your trip more enjoyable by saving a movie or a few TV shows on your tablet or laptop and enjoying them with your seat reclined.
What is the flight distance from Pierre Elliott Trudeau Intl. Airport (YUL) to STL?
The flight distance from YUL to STL is 970 mi. We suggest you bring along a magazine or a few puzzles to make your trip more relaxing.
What airlines fly from YUL to Lambert Field?
Unfortunately, there are no airlines currently offering direct flights between Montreal Airport and St. Louis Lambert International Airport. It’s in your best interest to plan well in advance to find the ideal price and route.
What airlines have practices regarding COVID-19 in place and use social distancing?
From the moment you enter the departure terminal to when you leave the arrivals terminal, if you’re flying with Southwest Airlines, American Airlines or Delta you can be sure that COVID-19 measures and social distancing rules have been adhered to. Many airlines have introduced capped capacity flights and keeping the middle seat empty.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Flight information from Montreal to St. Louis

 

Traveling From
Pierre Elliott Trudeau Intl.
Traveling To
Lambert-St. Louis Intl.
Shortest Flight Time
 hours mins
Earliest Departure Time
Latest Departure Time
Lowest Flight Price
$422

Route Info

Flight path for flights from Montreal-Pierre Elliott Trudeau International Airport to Lambert-St. Louis International Airport


Origin:
YUL - Montreal-Pierre Elliott Trudeau International Airport
Destination:
STL - Lambert-St. Louis International Airport
Distance:
1,009.00 miles


Airlines & Aircraft Used on YUL to STL Flight Routes


Airline Carrier
Aircraft
Air Canada
Airbus A319
Air Canada
Boeing 737 all pax models
Air Canada
Embraer EMB.110 Bandeirnate
American Airlines
Boeing 737-900 pax
United Airlines
Airbus A319
United Airlines
Airbus A319
United Airlines
Airbus A320-100/200
United Airlines
Embraer EMB.110 Bandeirnate

Discover our best flights from Montreal YUL to St. Louis STL. 

With 20 airlines to choose from on Travelocity, you can easily find the best option for you. Use our filters to sort by price, compare airlines, and find the most convenient flight times. 

 

Find our best return flights from Montreal YUL to St. Louis STL at the right price  

Airfares to St. Louis STL from Montreal YUL currently cost between $422 and $488. It’s usually cheaper to book a round trip than two separate one-way flights. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way flights from Montreal YUL to St. Louis STL 

If you want to be flexible about when you return, or keep your travel options open ended, a one-way flight could be just the ticket! You’ll find one-way airfares from Montreal YUL to St. Louis STL on Travelocity starting at $241. Prices and availability subject to change. Additional terms may apply. 

 

Get to St. Louis STL from Montreal YUL quicker with direct flights. 

Get to St. Louis faster, without the hassle of changing planes and moving baggage, by booking a direct flight. Expect your direct flight to STL from YUL to take around hour(s) min(s).  

 

Find our cheapest airfares for flights from Montreal YUL to St. Louis STL

Find cheap flight deals by using our search filters to sort results starting with the lowest price airfares to STL from YUL. Our Price Match Promise means if you find a lower rate on Travelocity.com or on another US-based website within 24 hours of booking, we’ll credit or refund the difference.  

 

Get our best airfare deals for your flight from Montreal YUL to St. Louis STL today 

If you’re flexible about when you travel, June is usually the cheapest month to fly from Montreal YUL to St. Louis STL. If you need to be more specific, search by date and arrival and departure times.Then, compare prices across different airlines, and sort results by lowest price first. 

 

Book flexible airline tickets for flights to St. Louis STL from Montreal YUL 

Some airlines let you change your travel dates without charging a fee. Use our ‘no change fee’ filter to see which flights to STL from YUL have this option.  

 

Travel with confidence when you book flights to St. Louis STL from Montreal YUL with Travelocity 

We’ve secured fantastic deals with all the main airline carriers and it’s easy to compare, choose, and book with Travelocity. With 24/7 customer service and our free 'App', we’ll always keep you moving. 

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.