Cheap flights from Longueuil to St Louis Downtown-Parks

Round-trip
Economy
Montreal (YMQ)
St. Louis (STL)
Depart
Return
Any month
Compare vs. Cheapflights |

The best prices from Longueuil to St Louis Downtown-Parks 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 St Louis Downtown-Parks (STL)

YMQ - STL
Price
C$ 279 - C$ 463
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$ 450

Average for round-trip flights in February 2021

Round-trip from

C$ 279

From Longueuil to St Louis Downtown-Parks

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 St Louis Downtown-Parks?

Departing on a Monday is a good option for securing a great price. You can expect to save up to 48% when planning your travel around this day of the week.

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

Users have found that booking a flight from Longueuil to St Louis Downtown-Parks at least 39 days early can save you up to 26% on average compared to booking a flight this week. If booking 39 days before your flight isn’t an option for you, users have found flights from Longueuil to St Louis Downtown-Parks for as little as C$ 571 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as C$ 682 for flights departing within the next 3 days.

What is the cheapest month to fly from Longueuil to St Louis Downtown-Parks?

The best pricing can be found in the month of February. Prices to St Louis Downtown-Parks from Longueuil average C$ 537. You can even find prices in February for less than C$ 537, as users have found deals to St Louis Downtown-Parks from as low as C$ 216. The month of June appears to be one of the more expensive times to travel to St Louis Downtown-Parks from Longueuil. Flying in the targeted month can save you up to 29%.

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

It’s typically best to fly out from Longueuil to St Louis Downtown-Parks in the morning. Doing so could potentially save you 16% on the flight price compared to flying at noon, which is usually more expensive.

Cheap flights from Longueuil to St Louis Downtown-Parks in February, March 2021

26 Feb - 5 Mar
C$ 483pp
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
26 Feb - 5 Mar
C$ 570pp
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
26 Feb - 5 Mar
C$ 6,192pp
YUL
Montreal Pierre Elliott Trudeau Intl
Multiple Airlines
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Multiple Airlines
     
3 STOPS
YUL
Montreal Pierre Elliott Trudeau Intl

Longueuil to St Louis Downtown-Parks 2021 flight deals

7 Apr - 10 Apr
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
7 Apr - 10 Apr
C$ 362pp
YUL
Montreal Pierre Elliott Trudeau Intl
Delta
   
2 STOPS
STL
Lambert-St Louis
STL
Lambert-St Louis
Delta
 
1 STOP
YUL
Montreal Pierre Elliott Trudeau Intl
7 Apr - 10 Apr
C$ 363pp
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

Related info for your journey

Flight FAQs

From Longueuil to St Louis Downtown-Parks

Can I find flights from Longueuil to St Louis Downtown-Parks for under C$ 377 on Cheapflights?

Yes, there are multiple flights from Longueuil to St Louis Downtown-Parks for under C$ 377. The cheapest flight booked recently is on American Airlines for just C$ 360, but on average you can expect to pay C$ 362.

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 St Louis Downtown-Parks for under C$ 377 on Cheapflights?

There are no direct flights from Longueuil to St Louis Downtown-Parks, 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 St Louis Downtown-Parks?

For as low as C$ 362, Delta can have you in St Louis Downtown-Parks from Longueuil in 10h 52m. This flight may include one or multiple stops.

What are the cheapest airlines to flying from Longueuil to St Louis Downtown-Parks round-trip?

According to our current data, American Airlines (C$ 361), and Delta (C$ 362) offers the cheapest pricing from Longueuil to St Louis Downtown-Parks. American Airlines is currently priced 3% below the average price you’ll pay for this route.

Destination information for St Louis Downtown-Parks

Today's exchange rate
C$ 1 = $0.80
Average temperature for February in St Louis Downtown-Parks
9.0 °C
Avg rainfall for February in St Louis Downtown-Parks
57.0 mm

Airports servicing Montreal

Saint-Hubert Airport (YHU)

Airports servicing St. Louis

Top 5 airlines flying from Longueuil to St Louis Downtown-Parks

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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