Cheap flights from Chicago to Montreal from $40
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 10/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Chicago to Montreal
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
Cheap direct flights
Delta flights from Chicago to Montreal
Our best Delta deals on Chicago to Montreal flight tickets
Porter Airlines flights from Chicago to Montreal
Our best Porter Airlines deals on Chicago to Montreal flight tickets
See travel insights to Montreal from
How to get the cheapest flight ticket from Chicago to Montreal
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
What is the cheapest month to fly to Montreal?
The cheapest month to fly to Montreal from Chicago is in September. Flight prices, which tend to average around $311, are often lower during this time because this is during the off-season. If you are unable to visit Montreal during the month of September, then departing from Chicago during the month April is also very affordable. Most momondo users find prices during this month for around $315.
What is the cheapest day to depart on your flight to Montreal?
The cheapest day to depart from Chicago to Montreal is on a Thursday when prices can be found for as low as $680. Flights from Chicago to Montreal 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.
What is the cheapest time of day to depart on your flight to Montreal?
Our most recent data shows that the best time of day to fly to Montreal is in the evening. Flights from Chicago to Montreal during this time can be as low as $305. In the morning is when there is more demand to fly to Montreal, so prices are often more expensive at around $830 per ticket.
What is the cheapest Chicago to Montreal flight route?
Fly from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl for the best Chicago - Montreal flight prices
How far in advance should I book a flight to Montreal?
You are more likely to see cheaper flights to Montreal from Chicago when booking 19 weeks ahead of your departure date. In general, you can expect to find flights to Montreal for around $408 when searching 19 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Montreal from Chicago for as low as $260 on momondo.
What cabin class options are available on Chicago to Montreal flights?
There are 4 cabin classes available to choose from on Chicago to Montreal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Chicago to Montreal flights?
No. A direct flight is the cheapest option for a flight between Chicago to Montreal.
How have Chicago to Montreal flight prices changed over time?
As of June 2025, prices for Chicago to Montreal flights are approximately 18% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Chicago to Montreal?
Air Canada, American Airlines, and Delta are the most popular carriers operating from Chicago to Montreal
What airlines fly to Montreal?
Air Canada, American Airlines and United Airlines are the top three most popular airlines that fly to Montreal 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. Keep in mind that there are 4 different airlines that fly to Montreal on a routine basis, so you have a few additional options to choose from.
How many flights depart from Chicago to Montreal on average per day?
As of June 2025, 25 flights take off from Chicago and land in Montreal each day. The most common flight departure time for this route is 5:00PM, with 66% of daily flights taking off in the afternoon.
How many flights depart from Chicago to Montreal on average per week?
178 flights are operational weekly from Chicago to Montreal as of June 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.
When to book flights from Chicago to Montreal
Cheap Chicago to Montreal (CHI to YMQ) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Chicago to Montreal
How far is Chicago to Montreal by plane?
Montreal is 744.2 mi away from Chicago. A reasonable flight in good conditions will take 2h 12m.
When did momondo last update prices for flights from Chicago to Montreal?
Prices for flights from Chicago to Montreal refresh daily.
How many operators does momondo search for flights from Chicago to Montreal?
As of June 2025, there are 4 operators available to choose from for flights from Chicago to Montreal.
How old do you have to be to fly from Chicago to Montreal?
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.
What documentation or ID do you need to fly to Montreal?
The necessary travel and health documents for your Montreal trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Chicago to Montreal?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Chicago to Montreal is Embraer 175 (Enhanced Winglets) (21.78% of total bookings). The next most popular plane models are Embraer 175 (16.96%), Boeing 737 MAX 8 (14.24%), and Boeing 787 Dreamliner (6.51%).
What is the most popular airline from Chicago to Montreal?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Chicago to Montreal is Air Canada (61% of total bookings). The next most popular airlines are Porter Airlines (16%), United Airlines (11%), and American Airlines (11%).
Best airlines flying from Chicago to Montreal
Compare and see reviews for airlines that fly from Chicago to Montreal with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $151 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $187 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $215 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $249 | Free Cancellation | Rating 8.0 288 reviews |
United Airlines Flights From Chicago to Montreal
United Airlines flight deals from Chicago to Montreal start from $215 round-trip. Over the 41 United Airlines flights for this route in a normal week, average airfare is usually $353 round-trip - but some users have found much cheaper deals with momondo.
American Airlines Flights From Chicago to Montreal
American Airlines (7.2/10 from 10,000 reviews) operates around 13 flights from Chicago to Montreal in any given week. The average American Airlines airfare for this route is around $405, with deals from around $187 rare but found on momondo. Referenced prices are for round-trip Chicago to Montreal flight searches in the last 72 hours.
Why use momondo?
Why should I use momondo to find a flight deal from Chicago to Montreal?
It is quick and easy to find Chicago to Montreal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Montreal that suits you.
Can I find flights from Chicago to Montreal with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Chicago to Montreal flights to just show those with flexible booking policies.
How can momondo help me find flights from Chicago to Montreal?
momondo provides multiple filters to help you find the best flight to Montreal from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Chicago to Montreal right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Chicago to Montreal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.