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$156+ Cheap flights from Illinois to Montreal (YMQ)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YMQ
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap flight deals from Illinois to Montreal

Cheapest flights from Illinois to Montreal
Explore the most affordable flight options available from Illinois to Montreal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This Flightnetwork deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:25 am
ORD
-
YUL
1 stop5h 22m
Air Canada
Thu 7/232:30 pm
YUL
-
ORD
1 stop6h 46m
Air Canada
Deal found 6/7$298
This Mytrip deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:45 am
ORD
-
YUL
Nonstop2h 15m
Air Canada
Sat 8/222:30 pm
YUL
-
ORD
1 stop6h 59m
Air Canada
Deal found 6/8$302
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:20 pm
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Mon 9/76:30 am
YUL
-
ORD
1 stop5h 30m
Porter Airlines
Deal found 6/8$304
This Trip.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2110:25 am
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Fri 7/2410:35 am
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 6/7$305
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:25 am
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Tue 7/2110:35 am
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 6/8$306
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:20 pm
ORD
-
YUL
1 stop3h 50m
Porter Airlines
Thu 10/1510:35 am
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 6/7$308
This Mytrip deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/17:25 am
ORD
-
YUL
1 stop5h 22m
Air Canada
Mon 8/38:40 am
YUL
-
ORD
Nonstop2h 36m
Air Canada
Deal found 6/6$309
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:00 am
ORD
-
YUL
1 stop4h 30m
Porter Airlines
Sun 11/16:45 am
YUL
-
ORD
1 stop4h 20m
Porter Airlines
Deal found 6/7$312
This Kiwi.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:20 pm
MDW
-
YUL
1 stop3h 50m
Porter Airlines
Wed 7/2910:35 am
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 6/8$313
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1110:25 am
MDW
-
YUL
1 stop6h 45m
Porter Airlines
Tue 7/1410:35 am
YUL
-
MDW
1 stop5h 00m
Porter Airlines
Deal found 6/7$315
This Kiwi.com deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/243:20 pm
ORD
-
YUL
1 stop5h 50m
Porter Airlines
Sun 9/2710:35 am
YUL
-
ORD
1 stop5h 00m
Porter Airlines
Deal found 6/7$315
This Air Canada deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:45 am
ORD
-
YUL
Nonstop2h 15m
Air Canada
Thu 8/136:30 pm
YUL
-
ORD
Nonstop2h 35m
Air Canada
Deal found 6/7$316

Find flight deals from Illinois to Montreal

Keep the following information in mind while searching for Illinois to Montreal flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Flightnetwork)

One-way from

$156
(Air Canada)

Popular in

June

Cheapest in

April

Average price

$426

Good round-trip deal

$424 or less

Good one-way deal

$213 or less
Provider with most accurate pricing for Chicago (CHI)-Montreal (YMQ) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Montreal (YMQ) flights.
Search Deals
From Illinois to Montreal (YMQ)
Search Deals
One-way flight from Illinois to Montreal (YMQ)
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($44 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from Illinois to Montreal (YMQ).
Search Deals
Price to beat on a one-way flight from Illinois to Montreal (YMQ).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Montreal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from Illinois to Montreal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 8/12

6:42 pm-11:30 pm

1 stop3h 48m

Montreal Pierre Elliott Trudeau Intl

Sat 8/15

6:00 am-12:39 pm

1 stop7h 39m

$372

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Sat 10/17

9:30 am-3:59 pm

1 stop5h 29m

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

6:00 am-12:33 pm

1 stop7h 33m

$372

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 10/21

9:30 am-3:59 pm

1 stop5h 29m

Montreal Pierre Elliott Trudeau Intl

Sat 10/24

6:00 am-12:33 pm

1 stop7h 33m

$372

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 7/1

1:26 pm-11:28 pm

1 stop9h 02m

Montreal Pierre Elliott Trudeau Intl

Sat 7/4

6:00 am-12:46 pm

1 stop7h 46m

$372

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 8/26

1:27 pm-11:30 pm

1 stop9h 03m

Montreal Pierre Elliott Trudeau Intl

Tue 9/1

6:00 am-9:17 am

1 stop4h 17m

$372

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 7/18

5:18 pm-11:25 pm

1 stop5h 07m

Montreal Pierre Elliott Trudeau Intl

Sat 7/25

6:00 am-1:46 pm

1 stop8h 46m

$372

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Fri 7/3

1:26 pm-11:28 pm

1 stop9h 02m

Montreal Pierre Elliott Trudeau Intl

Sat 7/11

6:00 am-12:38 pm

1 stop7h 38m

$381

ChicagoMontreal

MDW - YUL

MDWYUL

Chicago Midway

Wed 7/1

1:26 pm-11:28 pm

1 stop9h 02m

Montreal Pierre Elliott Trudeau Intl

Fri 7/10

6:00 am-9:13 am

1 stop4h 13m

$381

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 6/23

7:01 am-4:17 pm

1 stop8h 16m

Montreal Pierre Elliott Trudeau Intl

Fri 7/3

6:00 am-1:00 pm

1 stop8h 00m

$381

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sat 6/20

6:04 pm-9:26 pm

Nonstop2h 22m

Montreal Pierre Elliott Trudeau Intl

Wed 6/24

8:40 am-10:16 am

Nonstop2h 36m

$397

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Montreal

Have a flexible travel schedule? Discover the best time to fly to Montreal from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Montreal

What is the cheapest month to book a flight from Illinois to Montreal?

Currently, October is the cheapest month in which you can book a flight from Illinois to Montreal (average of $56). Flying from Illinois to Montreal in July is currently the most expensive (average of $132). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to YMQ?

Find hourly flight availability from Illinois to Montreal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 9, 2026.

Unlike in the evening, when flights are generally more expensive, you can save up to 23% on flights from Illinois to Montreal by exploring options for tickets at noon.

Weekly flight availability from Illinois to Montreal

Explore weekly flight availability from Illinois to Montreal. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 9, 2026.

The most flights from USIL to YMQ are scheduled on a Monday (31 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (26 on average).

How much does it cost to fly round-trip from Illinois to Montreal?

How far ahead should I book a flight from Illinois to Montreal?

The best time to book flights from Illinois to Montreal is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Montreal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Montreal?

    A quick flight from Illinois to Montreal can take about 3h 48m. Delta provides one of the quickest options available for as low as $372. The distance from Illinois to Montreal is about 743 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Illinois to Montreal one-way?

    The cheapest airline one-way is Air Canada, with whom users have recently found tickets for as low as $64. However, be on the lookout for offers from American Airlines and United Airlines, as they are both options that can get you from Illinois to Montreal for a low price.

  • What are the most popular routes from Illinois to Montreal?

    The most popular flight routes from Illinois to Montreal are Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl, Chicago Midway - Montreal Pierre Elliott Trudeau Intl and Lambert-St Louis - Montreal Pierre Elliott Trudeau Intl.

  • What are the most reliable airlines from Illinois to Montreal?

    No one likes to see their flight delayed. When booking a flight from Illinois to Montreal consider choosing Avianca (92%), Finnair (83%) or Porter Airlines (83%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to Montreal?

    On average you can expect to pay $961 for a flight from Illinois to Montreal. The cheapest flight overall is $147 while the most popular route, (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl) is currently priced at $304.

  • Can I find deals for flights from Illinois to Montreal that include hotel bookings?

    Yes. In addition to deals on Illinois to Montreal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Montreal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Montreal.

  • Can I find deals for business class flights from Illinois to Montreal?

    Yes. Cheapflights offers flight deals from Illinois to Montreal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Montreal?

    Currently, October is the cheapest month in which you can book a flight from Illinois to Montreal (average of $56). Flying from Illinois to Montreal in July is currently the most expensive (average of $132). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Illinois to Montreal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Montreal

Discover the top 5 airlines that operate flights from Illinois to Montreal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$111Average$236FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$155Average$380FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$159Average$390FlexibilityNo cancel feeOn-time69%
Porter AirlinesCheapest$160Average$351FlexibilityNo cancel feeOn-time52%
American AirlinesCheapest$192Average$439FlexibilityNo cancel feeOn-time71%

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