Cheap flights from Longueuil to Lambert-St Louis Intl

Round-trip
Economy
Montreal (YMQ)
St. Louis (STL)
Depart
Return
Any month
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The best prices from Longueuil to Lambert-St Louis Intl are usually found in August or April, booked 53 days in advance, depart on a Tuesday or Thursday and return on a Monday

How to find the cheapest flight from
Longueuil (YMQ) to Lambert-St Louis Intl (STL)

YMQ - STL
Price
C$ 283 - C$ 470
STL
Temperature
7 - 32 °C
STL
Rainfall
57 - 130 mm

Popular in

September

High demand for flights, 19% potential price rise

Cheapest in

August

Best time to find cheap flights, 26% potential price drop

Average price

C$ 390

Average for round-trip flights in March 2021

Round-trip from

C$ 283

From Longueuil to Lambert-St Louis Intl

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Longueuil to Lambert-St Louis Intl?

Saturday flights are generally found to be more expensive for flights from Longueuil to Lambert-St Louis Intl. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Lambert-St Louis Intl.

How far in advance should I book a flight from Longueuil to Lambert-St Louis Intl?

Travellers have found it’s best to book a flight 39 days in advance to save up to 26% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 39 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Longueuil to Lambert-St Louis Intl 1-2 weeks in advance for as low as C$ 579, or C$ 691 for flights within the next 24 hours.

What is the cheapest month to fly from Longueuil to Lambert-St Louis Intl?

Our data shows that February tends to be the cheapest month to fly to Lambert-St Louis Intl from Longueuil. Users have commonly found prices around C$ 545 for the month, but tickets can be as low as C$ 219. Due to multiple factors, prepare for potentially higher prices in June.

When is the cheapest time to fly from Longueuil to Lambert-St Louis Intl (YMQ - STL)?

One of the essential ways to save on airfare from Longueuil to Lambert-St Louis Intl is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.

Cheap flights from Longueuil to Lambert-St Louis Intl in February, March 2021

5 Mar - 12 Mar
C$ 467pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
5 Mar - 12 Mar
C$ 581pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
   
2 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl

Longueuil to Lambert-St Louis Intl 2021 flight deals

21 May - 22 May
C$ 354pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
21 May - 22 May
C$ 360pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
13 May - 19 May
C$ 363pp
YUL
Montreal Pierre Elliott Trudeau Intl
American Airlines
 
1 STOP
STL
Lambert-St Louis
STL
Lambert-St Louis
American Airlines
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl

Related info for your journey

Flight FAQs

From Longueuil to Lambert-St Louis Intl

Can I find flights from Longueuil to Lambert-St Louis Intl for under C$ 382 on Cheapflights?

Yes, there are multiple flights from Longueuil to Lambert-St Louis Intl for under C$ 382. The cheapest flight booked recently is on American Airlines for just C$ 354, but on average you can expect to pay C$ 418.

What safety measures are being taken by airlines flying from Montreal to Lambert-St Louis to control the spread of COVID-19?

Airlines globally have implemented additional safety measures to accommodate you. Delta is one of them. Airline carriers are regularly disinfecting and sanitizing their aircraft. Masks are provided and are mandatory while on board. Pre-flight testing for symptoms and antibodies, alongside socially-distanced seating (for a limited time) will work towards keeping travellers safer while flying from Montreal to Lambert-St Louis. Policies will vary by airline.

Which airlines flying from Montreal to Lambert-St Louis have flexible cancellations due to COVID-19?

Due to the rapidly changing circumstances due to COVID-19, airlines like American Airlines, Air Canada, and Delta flying from Montreal to Lambert-St Louis have implemented new flexible cancellation policies.

Are there direct flights from Longueuil to Lambert-St Louis Intl for under C$ 382 on Cheapflights?

There are no direct flights from Longueuil to Lambert-St Louis Intl, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Is Montreal weather warmer or cooler than St Louis?

We forecast the temperature to be around the 32 °C's in July, on average. The temperature in St Louis is generally hotter than in Montreal. Book flights in a timely manner in correlation to your departure date.

How long is the flight from Longueuil to Lambert-St Louis Intl?

Departing from Longueuil to Lambert-St Louis Intl will take you 7h 31m. Both multi-stop and direct flights can be found to your destination and back.

What are the cheapest airlines to flying from Longueuil to Lambert-St Louis Intl round-trip?

According to our current data, American Airlines (C$ 354), Delta (C$ 366), and WestJet (C$ 666) offers the cheapest pricing from Longueuil to Lambert-St Louis Intl. Users have found that American Airlines is 6% cheaper than the other options available to this destination.

Related searches

Flights to Lambert-St Louis Intl from Longueuil
Flights to Longueuil Flights to Lambert-St Louis Intl

Rent a Car

Car Rentals at Lambert-St Louis Intl Car Rentals in USA

Destination information for Lambert-St Louis Intl

Today's exchange rate
C$ 1 = $0.79
Average temperature for March in Lambert-St Louis Intl
15.0 °C
Avg rainfall for March in Lambert-St Louis Intl
83.0 mm

Airports servicing Montreal

Saint-Hubert Airport (YHU)

Airports servicing St. Louis

Top 5 airlines flying from Longueuil to Lambert-St Louis Intl

Airline Cheapest Average Flexibility On-time COVID-19 safety
WestJet
C$ 249 C$ 343 No cancel fee 60%
Search WestJet flights
Air Canada
C$ 267 C$ 345 No cancel fee 67%
Search Air Canada flights
Delta
C$ 135 C$ 368 No cancel fee N/A
Search Delta flights
American Airlines
C$ 214 C$ 370 No cancel fee 71%
Search American Airlines flights
United Airlines
C$ 181 C$ 437 No cancel fee 69%
Search United Airlines flights
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