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Cheap flights from Quebec to Illinois from C$ 226

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 25/8. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
14 Sep — 21 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Quebec to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Quebec to Illinois
Explore the most affordable flight options available from Quebec to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 August 2026.

Thu 22/101:15 p.m. -
Nonstop2h 37m
Sun 25/107:25 a.m. -
1 stop5h 21m
Deal found 13/8C$ 368
Wed 9/98:45 a.m. -
1 stop5h 36m
Wed 23/92:00 p.m. -
1 stop6h 45m
Deal found 13/8C$ 369
Sat 10/102:30 p.m. -
1 stop6h 59m
Wed 14/102:00 p.m. -
1 stop6h 45m
Deal found 11/8C$ 372
Fri 4/92:35 p.m. -
1 stop7h 16m
Sun 6/98:40 a.m. -
Nonstop2h 19m
Deal found 12/8C$ 374
Thu 24/98:45 a.m. -
1 stop5h 36m
Sun 27/92:00 p.m. -
1 stop6h 45m
Deal found 13/8C$ 375
Sat 29/82:30 p.m. -
1 stop7h 11m
Wed 2/97:25 a.m. -
1 stop5h 22m
Deal found 11/8C$ 376
Tue 8/98:45 a.m. -
1 stop5h 36m
Tue 15/92:00 p.m. -
1 stop6h 45m
Deal found 12/8C$ 379
Thu 17/99:00 a.m. -
1 stop6h 35m
Mon 21/911:45 a.m. -
1 stop5h 27m
Deal found 10/8C$ 379
Thu 27/88:40 a.m. -
Nonstop2h 36m
Tue 1/98:40 a.m. -
Nonstop2h 19m
Deal found 13/8C$ 381
Fri 18/99:00 a.m. -
1 stop6h 35m
Mon 21/93:20 p.m. -
1 stop4h 52m
Deal found 12/8C$ 381
Wed 2/910:35 a.m. -
1 stop5h 00m
Wed 30/93:20 p.m. -
1 stop4h 52m
Deal found 10/8C$ 382
Fri 4/96:30 p.m. -
Nonstop2h 35m
Mon 7/98:40 a.m. -
Nonstop2h 19m
Deal found 13/8C$ 383

Find flight deals from Quebec to Illinois

Keep the following information in mind while searching for Quebec to Illinois flight deals. Data was last updated 15 August 2026.

Round-trip from

C$ 368

One-way from

C$ 226

Popular in

July

Cheapest in

April

Average price

C$ 501

Good round-trip deal

C$ 540 or less

Good one-way deal

C$ 327 or less
Air Canada
  • Air Canada
  • 22/10-25/10
  • 1 total stop
  • 7h 58m total
  • Quebec to Illinois
Search Deals
Air Canada
  • Air Canada
  • 25/8
  • 1 total stop
  • 5h 11m total
  • Quebec to Illinois
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 89 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Quebec to Illinois.
Search Deals
Price to beat on a one-way flight from Quebec to Illinois.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Quebec to Illinois 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 629,999 searches. Data last updated 15 August 2026.
Use the filters below to find and compare flights from Quebec to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

7:00 a.m.-3:44 p.m.

1 stop9h 44m

Chicago Midway

Wed 21/10

1:27 p.m.-11:25 p.m.

1 stop8h 58m

C$ 386

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

12:47 p.m.-4:59 p.m.

1 stop5h 12m

Chicago Midway

Tue 20/10

12:45 p.m.-11:59 p.m.

1 stop10h 14m

C$ 386

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

12:47 p.m.-6:33 p.m.

1 stop6h 46m

Chicago Midway

Wed 2/9

4:39 p.m.-11:52 p.m.

1 stop6h 13m

C$ 406

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

6:10 a.m.-7:51 a.m.

Nonstop2h 41m

Chicago O'Hare Intl

Sat 17/10

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 411
Quickest round-trip

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 8/9

9:45 a.m.-11:21 a.m.

Nonstop2h 36m

Chicago O'Hare Intl

Sat 17/10

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 411

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sun 6/9

6:00 a.m.-9:17 a.m.

1 stop4h 17m

Chicago Midway

Wed 21/10

12:27 p.m.-11:22 p.m.

1 stop9h 55m

C$ 411

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 25/9

9:45 a.m.-11:21 a.m.

Nonstop2h 36m

Chicago O'Hare Intl

Mon 28/9

7:11 a.m.-10:40 a.m.

Nonstop2h 29m

C$ 421

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Sat 29/8

12:47 p.m.-6:33 p.m.

1 stop6h 46m

Chicago Midway

Sun 30/8

6:42 p.m.-11:30 p.m.

1 stop3h 48m

C$ 429

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 15/9

9:30 a.m.-6:04 p.m.

1 stop9h 34m

Chicago O'Hare Intl

Thu 17/9

7:05 a.m.-4:19 p.m.

1 stop8h 14m

C$ 431

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

9:30 a.m.-6:03 p.m.

1 stop9h 33m

Chicago O'Hare Intl

Fri 4/9

1:59 p.m.-11:30 p.m.

1 stop8h 31m

C$ 431

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/8

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

Have a flexible travel schedule? Discover the best time to fly to Illinois from Quebec 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 Quebec to Illinois

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

Currently, April is the cheapest month in which you can book a flight from Quebec to Illinois (average of C$ 394). Flying from Quebec to Illinois in August is currently the most expensive (average of C$ 539). 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 QC to IL?

Find hourly flight availability from Quebec to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 August 2026.

It’s optimal to fly from Quebec to Illinois in the evening. By choosing this option you can save up to 58% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Quebec to Illinois

Explore weekly flight availability from Quebec to Illinois. 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 15 August 2026.

The most flights from CAQC to USIL are scheduled on a Wednesday (34 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (21 on average).

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

Airfare is below average for this route at the moment.
Quebec to Illinois flights typically cost between C$ 394 and C$ 674 in October.
The cheapest round-trip price found within the last 5 days was C$ 368 on Air Canada (22 Oct-25 Oct).

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

To ensure you get the cheapest price possible for a flight from Quebec to Illinois, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 15 August 2026.
Read through reviews of airlines operating flights from Quebec to Illinois, such as Porter Airlines,Delta, andUnited Airlines. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Porter Airlines
8.0
Very good
456 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Delta
7.8
Good
8,509 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
United Airlines
7.4
Good
10,112 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
American Airlines
7.1
Good
11,939 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.
Air Canada
7.1
Good
11,478 reviews
Porter Airlines
8.0
Very good
456 reviews
Check prices

Entertainment

6.9

Crew

8.6

Comfort

8.0

Overall

8.0

Food

7.5

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Regan,Aug 2026

YYZ - YVR

My first flight with an all female flight crew who were the best ever.

Related info for your journey

Find useful and relevant information for your journey from Quebec to Illinois. 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 Quebec to Illinois?

    A quick flight from Quebec to Illinois can take about 2h 41m. Delta provides one of the quickest options available for as low as C$ 411. There are 1199 km between Quebec and Illinois. Both multi-stop and direct flights can be found to your destination and back.

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

    C$ 181 is the cheapest one-way deal found within the past few days, from Air Canada. You may also be able to find cheap deals on Porter Airlines and United Airlines, with prices starting from C$ 182 and C$ 191, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Quebec to Illinois 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 Quebec to Illinois?

    Currently, April is the cheapest month in which you can book a flight from Quebec to Illinois (average of C$ 394). Flying from Quebec to Illinois in August is currently the most expensive (average of C$ 539). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Quebec to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Quebec to Illinois

Discover the top 4 airlines that operate flights from Quebec to Illinois. 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 629,999 searches. Data last updated 15 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 176AverageC$ 607FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Porter AirlinesCheapestC$ 243AverageC$ 438FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
American AirlinesCheapestC$ 247AverageC$ 439FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapestC$ 248AverageC$ 494FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Quebec to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Quebec to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Quebec to Illinois?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Illinois from Quebec.

Can Cheapflights find flights from Quebec to Illinois with no change fees?

Need flexible booking options for your flight to Illinois from Quebec? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Quebec to Illinois become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from Quebec today and book when prices fit your budget.

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