How long is the flight from Quebec to Illinois?

A quick flight from Quebec to Illinois can take about 2h 42m. Air Canada provides one of the quickest options available for as low as C$ 427. 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$ 179 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$ 180 and C$ 189, respectively.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 mm per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

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.

C$ 224+ Cheap Flights from Quebec to Illinois

Cheap flight deals from Quebec to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 22 August 2026.

Wed 16/91:15 p.m. -

Nonstop2h 37m

Sun 20/98:45 a.m. -

Nonstop2h 15m

Deal found 17/8C$ 367

Thu 10/98:40 a.m. -

Nonstop2h 35m

Thu 17/98:45 a.m. -

Nonstop2h 15m

Deal found 17/8C$ 370

Wed 16/94:30 p.m. -

1 stop5h 11m

Sat 19/93:40 p.m. -

Nonstop2h 15m

Deal found 17/8C$ 372

Sun 27/910:35 a.m. -

1 stop5h 00m

Wed 30/911:45 a.m. -

1 stop5h 27m

Deal found 20/8C$ 374

Fri 11/96:30 p.m. -

Nonstop2h 42m

Mon 14/911:05 a.m. -

Nonstop2h 15m

Deal found 17/8C$ 376

Tue 22/99:00 a.m. -

1 stop6h 35m

Sat 26/911:45 a.m. -

1 stop5h 27m

Deal found 17/8C$ 378

Sat 5/910:20 a.m. -

1 stop5h 15m

Tue 8/911:45 a.m. -

1 stop5h 27m

Deal found 18/8C$ 381

Sat 5/910:20 a.m. -

1 stop5h 15m

Sat 12/911:45 a.m. -

1 stop5h 27m

Deal found 20/8C$ 383

Sun 4/108:40 a.m. -

Nonstop2h 37m

Sun 11/1011:05 a.m. -

Nonstop2h 15m

Deal found 20/8C$ 384

Sat 5/910:20 a.m. -

1 stop5h 15m

Wed 9/911:45 a.m. -

1 stop5h 27m

Deal found 18/8C$ 384

Thu 17/97:30 a.m. -

1 stop6h 51m

Sun 20/92:00 p.m. -

1 stop4h 45m

Deal found 17/8C$ 385

Sat 12/96:30 a.m. -

1 stop5h 30m

Sat 19/911:45 a.m. -

1 stop5h 27m

Deal found 21/8C$ 385

Best flights from Quebec to Illinois
Discover carefully curated flight deals from Quebec to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Fri 20/111:10 p.m. -

Nonstop2h 42m

Mon 23/112:00 p.m. -

1 stop4h 46m

Deal found 17/8C$ 427

Thu 3/92:46 p.m. -

1 stop10h 11m

Tue 8/95:10 p.m. -

1 stop5h 17m

Deal found 17/8C$ 433

Fri 11/94:55 p.m. -

Nonstop2h 48m

Sun 13/98:45 a.m. -

Nonstop2h 15m

Deal found 18/8C$ 449

Thu 24/99:15 a.m. -

1 stop6h 11m

Sun 27/98:50 a.m. -

1 stop4h 50m

Deal found 19/8C$ 455

Sat 19/99:15 a.m. -

1 stop6h 20m

Tue 22/93:20 p.m. -

1 stop5h 22m

Deal found 20/8C$ 649

Wed 16/912:31 p.m. -

1 stop12h 56m

Wed 23/94:37 p.m. -

1 stop16h 12m

Deal found 17/8C$ 663

Wed 2/96:00 a.m. -

1 stop4h 17m

Sun 6/95:45 p.m. -

1 stop4h 45m

Deal found 17/8C$ 433

Thu 22/109:45 a.m. -

Nonstop2h 36m

Mon 26/102:00 p.m. -

1 stop6h 45m

Deal found 21/8C$ 450

Wed 2/912:47 p.m. -

1 stop4h 30m

Tue 8/912:29 p.m. -

1 stop10h 15m

Deal found 19/8C$ 449

Fri 25/99:45 a.m. -

Nonstop2h 36m

Mon 28/92:00 p.m. -

1 stop4h 45m

Deal found 20/8C$ 450

Sat 5/92:46 p.m. -

1 stop7h 09m

Tue 8/95:10 p.m. -

1 stop5h 17m

Deal found 19/8C$ 449

Sat 12/96:10 a.m. -

Nonstop2h 41m

Sun 13/92:00 p.m. -

1 stop6h 45m

Deal found 22/8C$ 451

Tue 6/106:00 a.m. -

1 stop7h 54m

Sun 11/106:00 a.m. -

1 stop5h 02m

Deal found 19/8C$ 550

Wed 28/106:00 a.m. -

1 stop4h 17m

Sat 31/105:31 p.m. -

1 stop4h 51m

Deal found 19/8C$ 449

Fri 20/113:45 p.m. -

Nonstop3h 09m

Sun 22/1111:12 a.m. -

Nonstop2h 33m

Deal found 20/8C$ 566

Sat 5/912:47 p.m. -

1 stop8h 43m

Thu 10/91:55 p.m. -

1 stop8h 32m

Deal found 19/8C$ 451

Thu 15/1010:32 a.m. -

1 stop12h 14m

Mon 19/105:27 p.m. -

1 stop17h 17m

Deal found 19/8C$ 667

Wed 9/98:00 a.m. -

1 stop7h 35m

Wed 16/93:20 p.m. -

1 stop25h 32m

Deal found 17/8C$ 680

Wed 21/104:55 p.m. -

1 stop6h 33m

Sun 25/105:00 a.m. -

1 stop6h 00m

Deal found 22/8C$ 581

Wed 28/107:00 a.m. -

1 stop5h 47m

Thu 29/106:44 p.m. -

1 stop3h 41m

Deal found 19/8C$ 451

Wed 21/102:35 p.m. -

1 stop5h 06m

Sun 25/104:05 p.m. -

1 stop4h 45m

Deal found 20/8C$ 755

Thu 22/103:00 p.m. -

Nonstop2h 55m

Sun 25/105:55 a.m. -

1 stop5h 05m

Deal found 22/8C$ 589

Tue 29/96:00 a.m. -

1 stop7h 59m

Thu 1/101:55 p.m. -

1 stop8h 32m

Deal found 20/8C$ 453

Thu 22/103:53 p.m. -

1 stop8h 28m

Sun 25/108:45 a.m. -

2 stops8h 40m

Deal found 22/8C$ 612

Fri 16/104:55 p.m. -

1 stop7h 26m

Sat 24/1010:30 a.m. -

Nonstop2h 42m

Deal found 22/8C$ 597

Fri 2/1010:45 a.m. -

1 stop4h 50m

Fri 9/1011:45 a.m. -

1 stop25h 42m

Deal found 18/8C$ 795

Thu 3/97:00 a.m. -

1 stop10h 51m

Mon 7/96:59 a.m. -

1 stop3h 57m

Deal found 17/8C$ 457

Tue 1/96:25 p.m. -

1 stop17h 35m

Wed 9/93:20 p.m. -

1 stop15h 45m

Deal found 17/8C$ 633

Sun 4/1010:40 a.m. -

1 stop4h 55m

Sun 11/103:20 p.m. -

1 stop5h 22m

Deal found 20/8C$ 798

Thu 22/106:00 a.m. -

1 stop7h 47m

Sun 25/101:27 p.m. -

1 stop8h 58m

Deal found 22/8C$ 458

Find flight deals from Quebec to Illinois

Round-trip from	C$ 367
One-way from	C$ 224
Popular in	July
Cheapest in	April
Average price	C$ 497
Good round-trip deal	C$ 543 or less
Good one-way deal	C$ 324 or less

Air Canada
16/9-20/9
Nonstop
4h 52m total
Quebec to Illinois

Search Deals

Air Canada
5/10
Nonstop
2h 42m total
Quebec to Illinois

Search Deals

Highest demand for flights based on searches. 12% potential increase in price (C$ 86 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 17 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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 20/11

1:10 p.m.-2:52 p.m.

Nonstop2h 42m

Chicago O'Hare Intl

Mon 23/11

2:00 p.m.-7:46 p.m.

1 stop4h 46m

C$ 427

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 3/9

2:46 p.m.-11:57 p.m.

1 stop10h 11m

Chicago O'Hare Intl

Tue 8/9

5:10 p.m.-11:27 p.m.

1 stop5h 17m

C$ 433

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

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

1 stop4h 17m

Chicago Midway

Sun 6/9

5:45 p.m.-11:30 p.m.

1 stop4h 45m

C$ 433

Quickest round-trip

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 11/9

4:55 p.m.-6:43 p.m.

Nonstop2h 48m

Chicago O'Hare Intl

Sun 13/9

8:45 a.m.-12:00 p.m.

Nonstop2h 15m

C$ 449

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 2/9

12:47 p.m.-4:17 p.m.

1 stop4h 30m

Chicago O'Hare Intl

Tue 8/9

12:29 p.m.-11:44 p.m.

1 stop10h 15m

C$ 449

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 5/9

2:46 p.m.-8:55 p.m.

1 stop7h 09m

Chicago O'Hare Intl

Tue 8/9

5:10 p.m.-11:27 p.m.

1 stop5h 17m

C$ 449

MontrealChicago

YUL Montreal Pierre Elliott Trudeau Intl - MDW Chicago Midway

YULMDW

Montreal Pierre Elliott Trudeau Intl

Wed 28/10

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

1 stop4h 17m

Chicago Midway

Sat 31/10

5:31 p.m.-11:22 p.m.

1 stop4h 51m

C$ 449

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 22/10

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

Nonstop2h 36m

Chicago O'Hare Intl

Mon 26/10

2:00 p.m.-9:45 p.m.

1 stop6h 45m

C$ 450

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

2:00 p.m.-7:45 p.m.

1 stop4h 45m

C$ 450

MontrealChicago

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

YULORD

Montreal Pierre Elliott Trudeau Intl

Sat 12/9

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

Nonstop2h 41m

Chicago O'Hare Intl

Sun 13/9

2:00 p.m.-9:45 p.m.

1 stop6h 45m

C$ 451

Flights are sorted by cheapest round-trip flights first.

Deals found on 17/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

YUL-ORD

YOW-MDW

YUL-STL

YUL-MDW

YQB-ORD

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

CAQC-USIL

YUL-ORD

YOW-MDW

YUL-STL

YUL-MDW

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$ 389). Flying from Quebec to Illinois in August is currently the most expensive (average of C$ 534). 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?

It’s optimal to fly from Quebec to Illinois in the evening. By choosing this option you can save up to 57% on the cost of your flight, compared to a flight at noon.

Weekly flight availability from Quebec to Illinois

The most flights from CAQC to USIL are scheduled on a Friday (33 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$ 400 and C$ 630 in September.
The cheapest round-trip price found within the last 5 days was C$ 367 on Air Canada (16 Sep-20 Sep).

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

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

457 reviews

Check prices

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

457 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

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

8,513 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

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

10,114 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

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

11,986 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

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

11,519 reviews

Porter Airlines

8.0

Very good

457 reviews

Check prices

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

How long is the flight from Quebec to Illinois?
A quick flight from Quebec to Illinois can take about 2h 42m. Air Canada provides one of the quickest options available for as low as C$ 427. 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$ 179 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$ 180 and C$ 189, 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$ 389). Flying from Quebec to Illinois in August is currently the most expensive (average of C$ 534). 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

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Return Flight Options

Top destinations

Alternative routes for Quebec to Illinois

Toronto Island to Newark flights

Pearson Intl to Newark flights

Pearson Intl to John F Kennedy Intl flights

Pearson Intl to LaGuardia flights

Toronto Island to LaGuardia flights

Pearson Intl to Fort Lauderdale flights

Vancouver Intl to Los Angeles flights

Pierre Elliott Trudeau Intl to Newark flights

Pierre Elliott Trudeau Intl to LaGuardia flights

Toronto Island to John F Kennedy Intl flights

Vancouver Intl to San Francisco flights

Pierre Elliott Trudeau Intl to Fort Lauderdale flights

Pearson Intl to Las Vegas flights

Pearson Intl to Miami flights

Pierre Elliott Trudeau Intl to Miami flights

Pearson Intl to Los Angeles flights

Vancouver Intl to Newark flights

Pearson Intl to Orlando flights

Vancouver Intl to Las Vegas flights

Pearson Intl to Dallas/Fort Worth flights

Pierre Elliott Trudeau Intl to John F Kennedy Intl flights

Hamilton to Newark flights

Vancouver Intl to John F Kennedy Intl flights

Pearson Intl to O'Hare Intl flights

Pearson Intl to San Francisco flights

Pearson Intl to Hobby flights

Pearson Intl to Reagan-National flights

Toronto Island to Fort Lauderdale flights

Vancouver Intl to LaGuardia flights

Pearson Intl to George Bush Intcntl flights

Pierre Elliott Trudeau Intl to Los Angeles flights

Pierre Elliott Trudeau Intl to Orlando flights

Pearson Intl to Dulles Intl flights

Pearson Intl to Tampa flights

Pearson Intl to Seattle flights

Vancouver Intl to San Diego flights

Toronto Island to Orlando flights

Vancouver Intl to Honolulu flights

Pearson Intl to Sky Harbor Intl flights

Vancouver Intl to Dallas/Fort Worth flights

Vancouver Intl to Seattle flights

Abbotsford to Los Angeles flights

Vancouver Intl to O'Hare Intl flights

Pierre Elliott Trudeau Intl to Las Vegas flights

Pearson Intl to Atlanta flights

Pearson Intl to Philadelphia flights

Vancouver Intl to Ontario flights

Pierre Elliott Trudeau Intl to O'Hare Intl flights

Calgary to Los Angeles flights

Pierre Elliott Trudeau Intl to Dallas/Fort Worth flights

Top 4 airlines flying from Quebec to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 174	AverageC$ 572	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Porter Airlines	CheapestC$ 241	AverageC$ 433	FlexibilityNo cancel fee	On-time52%	Search Porter Airlines flights
American Airlines	CheapestC$ 245	AverageC$ 449	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
United Airlines	CheapestC$ 246	AverageC$ 496	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Quebec to Illinois from C$ 224

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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Quebec to Illinois

Cheapest flights from Quebec to IllinoisExplore 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 22 August 2026.

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 22 August 2026.

Best flights from Quebec to IllinoisDiscover carefully curated flight deals from Quebec to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Discover carefully curated flight deals from Quebec to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Direct flights from Quebec to IllinoisExplore direct flight options from Quebec to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Explore direct flight options from Quebec to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Last-minute flights from Quebec to IllinoisDiscover last-minute flight deals from Quebec to Illinois. Data last updated 22 August 2026 and is based on user searches.

Discover last-minute flight deals from Quebec to Illinois. Data last updated 22 August 2026 and is based on user searches.

One-way flights from Quebec to IllinoisSearch for one-way flight options from Quebec to Illinois. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Search for one-way flight options from Quebec to Illinois. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Find flight deals from Quebec to Illinois

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Quebec to Illinois that are best for you.

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.

Cheapflights Insights

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

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 22 August 2026.

It’s optimal to fly from Quebec to Illinois in the evening. By choosing this option you can save up to 57% 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 22 August 2026.

The most flights from CAQC to USIL are scheduled on a Friday (33 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$ 400 and C$ 630 in September.The cheapest round-trip price found within the last 5 days was C$ 367 on Air Canada (16 Sep-20 Sep).

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

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.

Related info for your journey

How long is the flight from Quebec to Illinois?

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

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

How can I find direct flights from Quebec to Illinois?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Quebec to Illinois

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from Quebec to Illinois by cabin class

Find flights from Quebec to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Quebec and Illinois flights

Browse other Quebec and Illinois flight options. Last updated on 22 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Find a return flight route from Illinois

Find the right flight back to Quebec after your stay in Illinois

Quebec to Illinois flights

Consider these flights travelling from Quebec to Illinois.

Top 4 airlines flying from Quebec to Illinois

Fly with Cheapflights

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

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

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

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

100% Free

Book with Flexibility

Travel Smart

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 22 August 2026.

Best flights from Quebec to Illinois
Discover carefully curated flight deals from Quebec to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 22 August 2026.

Direct flights from Quebec to Illinois
Explore direct flight options from Quebec to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 22 August 2026.

Last-minute flights from Quebec to Illinois
Discover last-minute flight deals from Quebec to Illinois. Data last updated 22 August 2026 and is based on user searches.

One-way flights from Quebec to Illinois
Search for one-way flight options from Quebec to Illinois. Find affordable one-way fares based on user searches. Data last updated 22 August 2026.

Quebec to Illinois flights typically cost between C$ 400 and C$ 630 in September.
The cheapest round-trip price found within the last 5 days was C$ 367 on Air Canada (16 Sep-20 Sep).