Question 1

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 $597. 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 $772.

Question 2

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

Accepted Answer

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

Question 3

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 4

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 $385 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 $227 on momondo.

Question 5

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 6

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 135 minutes.

Question 7

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 8

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 9

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

Accepted Answer

No. A direct flight is the cheapest option for a flight between Chicago to Montreal Pierre Elliott Trudeau Intl Airport.

Question 10

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 11

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

Accepted Answer

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

Question 12

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 13

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 $613. 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 14

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 15

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 65% 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 16

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

Accepted Answer

82 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 27% of flights per week taking off on this day.

Question 17

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 12% of their flights experiencing any sort of delay.

Question 18

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 11 per day as of December 2025. The most frequent departure time is 5:00PM, with 55% of daily flights leaving at noon.

Question 19

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 34% more expensive when compared to flights at the same time last year.

Question 20

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 21

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 22

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 23

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 24

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	$322
Fastest flight time	2h 05m
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Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $148	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
Air Canada	PriceFrom $163	Free Cancellation	Rating 7.1 10,534 reviews	Search Air Canada flights
American Airlines	PriceFrom $192	Free Cancellation	Rating 7.2 11,055 reviews	Search American Airlines flights
Porter Airlines	PriceFrom $249	Free Cancellation	Rating 8.0 399 reviews	Search Porter Airlines flights

Cheap flights from Chicago to Montreal from $55

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