Question 1

Which is the best airline for flights from St. Louis to Montreal, United Airlines or Air Canada?

Accepted Answer

The two airlines most popular with KAYAK users for flights from St. Louis to Montreal are United Airlines and Air Canada. With an average price for the route of $759 and an overall rating of 7.4, United Airlines is the most popular choice. Air Canada is also a great choice for the route, with an average price of $667 and an overall rating of 7.1.

Question 2

How long does a flight from St. Louis to Montreal take?

Accepted Answer

Direct flights cover the 967 miles separating St. Louis to Montreal in about 2h 31m.

Question 3

How many flights are there between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from St. Louis and lands in Montreal Pierre Elliott Trudeau Intl Airport, with an average flight time of 2h 32m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 7 flights.

Question 4

How many flights are there between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport per day?

Accepted Answer

There is a maximum of 1 nonstop flight a day that takes off from St. Louis and lands in Montreal Pierre Elliott Trudeau Intl Airport, with an average flight time of 2h 32m. The most common departure time is 12:00 pm and most flights take off in the morning. Each week, there are 7 flights.

Question 5

What is the cheapest flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

In the last 5 days, the lowest price for a flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport was $201 for a one-way ticket and $483 for a round-trip.

Question 6

Do I need a passport to fly between St. Louis and Montreal?

Accepted Answer

Yes, you'll most likely have to show a valid passport before boarding the plane in St. Louis and on arrival in Montreal.

Question 7

What’s the cheapest day of the week to fly from St. Louis to Montreal?

Accepted Answer

Your flight ticket price will generally be cheaper if you fly to Montreal on a Tuesday and more expensive on a Friday. On your return trip to St. Louis, you should consider flying back on a Thursday, and avoid Fridays for better deals.

Question 8

What’s the cheapest day of the week to fly from St. Louis to Montreal?

Accepted Answer

Your flight ticket price will generally be cheaper if you fly to Montreal on a Tuesday and more expensive on a Friday. On your return trip to St. Louis, you should consider flying back on a Thursday, and avoid Fridays for better deals.

Question 9

What’s the earliest departure time from St. Louis to Montreal?

Accepted Answer

Early birds can take the earliest flight from St. Louis at 12:10 pm and will be landing in Montreal Pierre Elliott Trudeau Intl Airport at 3:42 pm.

Question 10

What’s the latest departure time from St. Louis to Montreal?

Accepted Answer

If you prefer to fly at night, the latest flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport jets off at 12:10 pm and lands at 3:42 pm.

Question 11

Which airlines fly non-stop between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

There are 2 airlines that fly nonstop from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport. They are Air Canada and United Airlines. The cheapest airline for this route is Air Canada, with the best round-trip deal found costing $257. On average, the best prices for this route can be found at Air Canada.

Question 12

Which airlines fly non-stop between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

There are 2 airlines that fly nonstop from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport. They are Air Canada and United Airlines. The cheapest airline for this route is Air Canada, with the best round-trip deal found costing $257. On average, the best prices for this route can be found at Air Canada.

Question 13

Which airlines offer Wi-Fi service onboard planes from St. Louis to Montreal?

Accepted Answer

Air Canada, Lufthansa, and United Airlines offer inflight Wi-Fi service on the St. Louis to Montreal flight route.

Question 14

Which aircraft models fly most regularly from St. Louis to Montreal?

Accepted Answer

The Canadair (Bombardier) Regional Jet 900 is the aircraft model that flies most regularly on the St. Louis to Montreal flight route.

Question 15

Which airline alliances offer flights from St. Louis to Montreal?

Accepted Answer

Star Alliance is the only airline alliance operating flights between St. Louis and Montreal.

Question 16

On which days can I fly direct from St. Louis to Montreal?

Accepted Answer

There are nonstop flights from St. Louis to Montreal on a daily basis.

Question 17

What is the cheapest month to fly from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The cheapest month for flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are September and June, where the average cost of round-trip tickets is $997 and $759 respectively.

Question 18

What is the cheapest month to fly from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The cheapest month for flights from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport is February, where tickets cost $0 (return) on average. On the other hand, the most expensive months are September and June, where the average cost of round-trip tickets is $997 and $759 respectively.

Question 19

How does KAYAK find such low prices on flights from St. Louis to Montreal?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Montreal.

Question 20

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Montreal?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Montreal from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

Question 21

What is the Hacker Fare option on flights from St. Louis to Montreal?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Montreal with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and YUL can sometimes prove cheaper using this method.

Question 22

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Montreal?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Montreal from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 23

What is the cheapest layover airport when flying from St. Louis to Montreal?

Accepted Answer

Flights via Toronto (YYZ) offer the most affordable fares, with an average round-trip price of $645.

Question 24

What is the most popular layover airport when flying from St. Louis to Montreal?

Accepted Answer

Chicago (ORD) is the top choice – 33% of KAYAK users who clicked on 1-stop flights from St. Louis to Montreal picked an itinerary connecting there.

Question 25

Which layover airport has the quickest connection when flying from St. Louis to Montreal?

Accepted Answer

If you prefer a quick connection, Detroit (DTW) often has the shortest layovers from St. Louis to Montreal, with an average of 1h 03m.

Question 26

Which layover airport offers the shortest total travel time from St. Louis to Montreal?

Accepted Answer

Consider flying via Detroit (DTW) for the shortest journey. The average one-way travel time for flights connecting there is 4h 31m.

Question 27

Which cabin class options are there for flights between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 28

Which cabin class options are there for flights between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 29

Which airlines provide the cheapest flights from St. Louis to Montreal?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from St. Louis to Montreal were found on American Airlines ($483) and WestJet ($542).

Question 30

Which airlines provide the cheapest flights from St. Louis to Montreal?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from St. Louis to Montreal were found on American Airlines ($483) and WestJet ($542).

Question 31

Can I save money by flying with a layover from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $636 on average.

Question 32

Can I save money by flying with a layover from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $636 on average.

Question 33

How much is a round-trip flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Flight prices are typical for this route right now.Flights to Montreal Pierre Elliott Trudeau Intl Airport from St. Louis usually cost between $300 and $746 in October.
The lowest price found in the past 5 days was $483 on American Airlines (Oct 24-Oct 27).

Question 34

What are the most popular airlines flying to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The most popular airline among KAYAK users flying to Montreal Pierre Elliott Trudeau Intl Airport is Air Canada, followed by United Airlines.

Low season	August
High season	August
Cheapest flight	$201

STL - YUL

$201 Find Cheap Flights from St. Louis to Montreal - Compare and Save

Everything you should know

Cheap Flights from St. Louis to Montreal (STL-YUL)

Recent round-trip flight deals from St. Louis to Montreal

Recent one-way flight deals from St. Louis to Montreal

Recent last minute flight deals from St. Louis to Montreal

Recent direct flight deals from St. Louis to Montreal

KAYAK's insights & trends for St. Louis to Montreal flights

How much is a round-trip flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

What’s the cheapest day of the week to fly from St. Louis to Montreal?

What is the cheapest month to fly from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Can I save money by flying with a layover from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport?

Which airlines provide the cheapest flights from St. Louis to Montreal?

Which airlines fly non-stop between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

What is the most popular layover airport when flying from St. Louis to Montreal?

What is the cheapest layover airport when flying from St. Louis to Montreal?

Which layover airport offers the shortest total travel time from St. Louis to Montreal?

Which layover airport has the quickest connection when flying from St. Louis to Montreal?

Which cabin class options are there for flights between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport?

How many flights are there between St. Louis and Montreal Pierre Elliott Trudeau Intl Airport per day?

How long does a flight from St. Louis to Montreal take?

What’s the earliest departure time from St. Louis to Montreal?

What’s the latest departure time from St. Louis to Montreal?

Expert advice for your flight from St. Louis to Montreal

Good to know

Low season

High season

Cheapest flight

When to book flights from St. Louis to Montreal

FAQs for booking St. Louis to Montreal flights

KAYAK’s top tips for finding a cheap flight from St. Louis to Montreal Pierre Elliott Trudeau Intl Airport

Prefer to fly direct from St. Louis to Montreal?

Everything you need to know for your flight from St. Louis to Montreal

Information on your arrival and departure airports

Cabin class types available on flights to Montreal

Complete your trip to Montreal with a hotel stay or car rental

Find direct flights to and from St. Louis and Montreal

Flights to other popular destinations

Flights from domestic origins to Montreal

Choose which airport to fly into in Montreal

Find deals for your return flight