Q: What is the typical price of a round-trip flight between Chicago and Montreal Pierre Elliott Trudeau Intl Airport?

Prices are currently low for flights on this route. Typical prices usually range from $315 to $577. The lowest price recently found on this route was $191.

Question 1

What cabin class options are available on Chicago to Montreal Pierre Elliott Trudeau Intl flights?

Accepted Answer

There are 4 cabin classes available to choose from on Chicago to Montreal Pierre Elliott Trudeau Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 2

Which layover airport offers the lowest fares from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Flights via Toronto (YTZ) offer the lowest average round-trip price of $220.

Question 3

What is the cheapest airline that flies from Chicago to Montreal Pierre Elliott Trudeau Intl?

Accepted Answer

United Airlines, Air Canada, and Porter Airlines are the most popular carriers operating from Chicago to Montreal Pierre Elliott Trudeau Intl

Question 4

What is the typical price of a round-trip flight between Chicago and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $315 to $577.
The lowest price recently found on this route was $191.

Question 5

What is the cheapest day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The cheapest day to depart from Chicago to Montreal Pierre Elliott Trudeau Intl Airport is on a Thursday. Travelers who choose to depart for Montreal Pierre Elliott Trudeau Intl Airport on a Thursday will often find tickets for as low as $624. Flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport on a Sunday will generally be more expensive and average around $830. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Question 6

How far in advance should I book a flight to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Montreal Pierre Elliott Trudeau Intl Airport from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Montreal Pierre Elliott Trudeau Intl Airport for around $398 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal Pierre Elliott Trudeau Intl Airport from Chicago for as low as $237 on momondo.

Question 7

How many flights depart from Chicago to Montreal Pierre Elliott Trudeau Intl Airport on average per week?

Accepted Answer

145 flights are operational weekly from Chicago to Montreal Pierre Elliott Trudeau Intl Airport as of December 2025. The most popular departure day for this route is Tue, with 15% of flights per week taking off on this day.

Question 8

What is the most punctual flight time for Chicago to Montreal flights?

Accepted Answer

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Question 9

Which airport is the most popular layover for flights between Chicago and Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Toronto (YTZ) was the most common stop: 67% of momondo users choosing 1-stop flights on this route connected there.

Question 10

What airlines fly to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Air Canada, United Airlines and American Airlines are the top three most popular airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport from Chicago according to our data. Air Canada is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Montreal Pierre Elliott Trudeau Intl Airport. Keep in mind that there are 4 different airlines that fly to Montreal Pierre Elliott Trudeau Intl Airport on a routine basis, so you have a few additional options to choose from.

Question 11

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Sunday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Question 12

How have Chicago to Montreal Pierre Elliott Trudeau Intl Airport flight prices changed over time?

Accepted Answer

As of December 2025, prices for Chicago to Montreal Pierre Elliott Trudeau Intl Airport flights are approximately 40% more expensive when compared to flights at the same time last year.

Question 13

Which airline has the best punctuality record on Chicago to Montreal flights?

Accepted Answer

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

Question 14

Which layover airport has the shortest connection time from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Toronto (YTZ) has the shortest average layover time for this route: 1h 07m.

Question 15

What is the cheapest Chicago to Montreal Pierre Elliott Trudeau Intl flight route?

Accepted Answer

Fly from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl for the best Chicago - Montreal Pierre Elliott Trudeau Intl flight prices

Question 16

How many flights depart from Chicago to Montreal Pierre Elliott Trudeau Intl Airport on average per day?

Accepted Answer

The number of flights available between Chicago and Montreal Pierre Elliott Trudeau Intl Airport is 20 per day as of December 2025. The most frequent departure time is 10:00AM, with 52% of daily flights leaving at noon.

Question 17

Can stopping save me money on Chicago to Montreal Pierre Elliott Trudeau Intl Airport flights?

Accepted Answer

You could potentially save up to 34% on your flight if you consider stops on a Chicago to Montreal Pierre Elliott Trudeau Intl Airport flight.

Question 18

How often are flights from Chicago to Montreal delayed?

Accepted Answer

Historically, on average around 15% of flights between Chicago and Montreal have experienced a delay on any given week. The average delay length over the past 12 months has been 134 minutes.

Question 19

What is the cheapest month to fly to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The month of September is another great option to travel to Montreal Pierre Elliott Trudeau Intl Airport, with average flight prices from Chicago averaging around $283.

Question 20

What is the cheapest time of day to depart on your flight to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

At noon is the cheapest time of day to fly from Chicago to Montreal Pierre Elliott Trudeau Intl Airport when you can find flight prices for as low as $588. Flying to Montreal Pierre Elliott Trudeau Intl Airport at noon is an ideal time because this is during off-peak travel hours. Flights in the morning are often more expensive with an average ticket price of $786.

Question 21

Which layover airport has the shortest travel time from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Flights connecting via Toronto (YTZ) have the shortest average one-way travel time: 3h 55m.

Question 22

When did momondo last update prices for flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

Prices for flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport refresh daily.

Question 23

How many operators does momondo search for flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

There are 4 operators available for flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport as of December 2025.

Question 24

How old do you have to be to fly from Chicago to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Montreal Pierre Elliott Trudeau Intl Airport.

Question 25

What documentation or ID do you need to fly to Montreal Pierre Elliott Trudeau Intl Airport?

Accepted Answer

The travel and health documents required for your trip to Montreal Pierre Elliott Trudeau Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Montreal Pierre Elliott Trudeau Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best Price Found	$201
Fastest flight time	2h 05m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $156	Free Cancellation	Rating 7.4 9,066 reviews	Search United Airlines flights
Air Canada	PriceFrom $163	Free Cancellation	Rating 7.1 10,500 reviews	Search Air Canada flights
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
Porter Airlines	PriceFrom $249	Free Cancellation	Rating 8.0 395 reviews	Search Porter Airlines flights

Cheap flights from Chicago to Montreal from $64

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Montreal departing on 2/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Chicago to Montreal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport

Our best United Airlines deals on Chicago to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

Porter Airlines flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport

Our best Porter Airlines deals on Chicago to Montreal Pierre Elliott Trudeau Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Chicago to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

See travel insights to Montreal from

How to get the cheapest flight ticket from Chicago to Montreal Pierre Elliott Trudeau Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip