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C$ 185+ Cheap flights to Illinois

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 21/4. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
26 Feb — 5 Mar1
1 adult

Flights to Illinois in 2025

Find the latest flights to Illinois in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 21 February 2025.

Round-trip from

C$ 290

One-way from

C$ 185

Popular in

December

Cheapest in

April

Average price

C$ 405

Good round-trip deal

C$ 282 or less

Good one-way deal

C$ 175 or less
Air Canada
  • Air Canada
  • 24/5-7/6
  • 2 total stops
  • 11h 30m total
  • Toronto to Chicago
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21/4
  • 21/4
  • 1 total stop
  • 15h 08m total
  • Toronto to Illinois
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Highest demand for flights based on searches. 4% potential increase in price (C$ 26 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease (C$ 6 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Price to beat on a round-trip flight from Toronto to Illinois.
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Price to beat on a one-way flight from Toronto to Illinois.
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Find flights to Illinois

Browse one-way and round-trip flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 21 February 2025
Explore Illinois
Flights to Chicago
Flights to Moline
Flights to Peoria
Flights to Bloomington

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Cheapest flights to Illinois
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 21 February 2025.

Sat 24/54:00 p.m.YYZ - ORD
1 stop5h 12mAir Canada
Sat 7/610:40 a.m.ORD - YYZ
1 stop6h 18mAir Canada
Deal found 20/2C$ 290
Sat 24/510:25 a.m.YTZ - ORD
1 stop5h 30mAir Canada
Sat 7/610:40 a.m.ORD - YTZ
1 stop6h 10mAir Canada
Deal found 20/2C$ 290
Sun 16/33:50 p.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Wed 19/35:35 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 21/2C$ 291
Thu 13/39:00 p.m.YYZ - ORD
Nonstop2h 06mMultiple Airlines
Thu 10/47:10 a.m.ORD - YYZ
Nonstop1h 48mMultiple Airlines
Deal found 19/2C$ 315
Fri 23/53:35 p.m.YTZ - MDW
Nonstop1h 49mAir Transat
Sun 25/59:15 a.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 21/2C$ 324
Mon 17/37:40 p.m.YYZ - ORD
1 stop4h 49mUnited Airlines
Mon 24/37:26 a.m.ORD - YYZ
1 stop6h 55mUnited Airlines
Deal found 21/2C$ 342
Sun 16/36:15 a.m.YYZ - ORD
Nonstop2h 15mAmerican Airlines
Wed 19/36:30 a.m.ORD - YYZ
1 stop8h 00mAmerican Airlines
Deal found 21/2C$ 345
Fri 18/49:30 a.m.YTZ - MDW
Nonstop1h 50mMultiple Airlines
Sat 19/412:55 p.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 20/2C$ 347
Sat 12/46:30 a.m.YYZ - MDW
1 stop13h 03mWestJet
Sun 20/410:20 a.m.MDW - YYZ
1 stop11h 54mWestJet
Deal found 21/2C$ 347
Fri 18/412:15 p.m.YYZ - MDW
1 stop7h 05mDelta
Mon 21/41:16 p.m.MDW - YYZ
1 stop8h 58mDelta
Deal found 20/2C$ 349
Fri 18/49:45 a.m.YYZ - ORD
1 stop7h 23mDelta
Sat 19/45:00 p.m.ORD - YYZ
1 stop4h 55mDelta
Deal found 20/2C$ 359
Fri 28/26:15 a.m.YYZ - ORD
1 stop10h 54mWestJet
Tue 4/32:35 p.m.ORD - YYZ
1 stop8h 04mWestJet
Deal found 21/2C$ 395

Find flights to Illinois within your budget

Locate flights to Illinois that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 629,999 searches and data was last updated on 21 February 2025.

Fly from

Toronto

Route

Depart

Return

Price

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sat 24/5

4:00 p.m.-8:12 p.m.

1 stop5h 12m

Chicago O'Hare Intl

Sat 7/6

10:40 a.m.-5:58 p.m.

1 stop6h 18m

C$ 290

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

Sat 24/5

10:25 a.m.-2:55 p.m.

1 stop5h 30m

Chicago O'Hare Intl

Sat 7/6

10:40 a.m.-5:50 p.m.

1 stop6h 10m

C$ 290

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Sun 16/3

3:50 p.m.-4:40 p.m.

Nonstop1h 50m

Chicago Midway

Wed 19/3

5:35 p.m.-8:17 p.m.

Nonstop1h 42m

C$ 291

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Thu 13/3

9:00 p.m.-10:06 p.m.

Nonstop2h 06m

Chicago O'Hare Intl

Thu 10/4

7:10 a.m.-9:58 a.m.

Nonstop1h 48m

C$ 315

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Fri 23/5

3:35 p.m.-4:24 p.m.

Nonstop1h 49m

Chicago Midway

Sun 25/5

9:15 a.m.-11:57 a.m.

Nonstop1h 42m

C$ 324

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Mon 17/3

7:40 p.m.-11:29 p.m.

1 stop4h 49m

Chicago O'Hare Intl

Mon 24/3

7:26 a.m.-3:21 p.m.

1 stop6h 55m

C$ 342

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

Sun 16/3

6:15 a.m.-7:30 a.m.

Nonstop2h 15m

Chicago O'Hare Intl

Wed 19/3

6:30 a.m.-3:30 p.m.

1 stop8h 00m

C$ 345

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

Sat 12/4

6:30 a.m.-6:33 p.m.

1 stop13h 03m

Chicago Midway

Sun 20/4

10:20 a.m.-11:14 p.m.

1 stop11h 54m

C$ 347

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

Fri 18/4

9:30 a.m.-10:20 a.m.

Nonstop1h 50m

Chicago Midway

Sat 19/4

12:55 p.m.-3:37 p.m.

Nonstop1h 42m

C$ 347

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

Fri 18/4

12:15 p.m.-6:20 p.m.

1 stop7h 05m

Chicago Midway

Tue 22/4

3:02 p.m.-10:55 p.m.

1 stop6h 53m

C$ 349

Flights are sorted by cheapest round-trip flights first.

Deals found on 20/2

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Best time to book a flight to Illinois

Have a flexible travel schedule? Discover the best time to fly to 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.

Travel insights for flights to Illinois

Get recent, data-driven insights about flights to Illinois including ideal travel times, pricing trends, and more.

How long is the flight to Illinois?

On average, a flight from Toronto to Illinois takes 7 hours 7 minutes. Flights to Illinois from other popular cities in Canada will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Toronto to Illinois. Price data was last updated on 30 June 2024.

Users looking for the lowest fares to Illinois should consider flying on Sunday mornings, when prices are typically cheapest. Budget-minded travellers will want to avoid Sunday at noon, when prices are usually at their highest.

Weekly flight availability to Illinois

The most flights from Toronto to Illinois are scheduled on a Friday (54 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (38 on average).

What are the most popular airlines that fly to Illinois?

The most popular airlines flying from Toronto to Illinois are Air Canada, United Airlines and Porter Airlines.

Air Canada

Air Canada

From C$ 219

United Airlines

United Airlines

From C$ 246

Porter Airlines

Porter Airlines

From C$ 188

American Airlines

American Airlines

From C$ 249

What are the cheapest airlines that fly to Illinois?

The cheapest airlines flying from Toronto to Illinois are Porter Airlines, Air Canada and United Airlines.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

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.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

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).

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 21 February 2025.
Read through reviews of airlines servicing Illinois, such as Alaska Airlines, Delta and Porter 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.
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Alaska Airlines
8.0
Very good
9,696 reviews
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Delta
8.0
Very good
8,217 reviews
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Porter Airlines
7.9
Good
276 reviews
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

KLM
7.8
Good
1,333 reviews
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Air Transat
7.8
Good
380 reviews
Alaska Airlines
8.0
Very good
9,696 reviews
Check prices

Comfort

7.9

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.1

Food

7.1

Reviews

1 / 20

10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Illinois climate

Winters along the Great Lakes are long and cold. From late November into April, there is plenty of snow, icy winds, and sub-freezing temperatures, but it’s also the best time to find cheap flights to Illinois. Conversely, July and August can be hot and sticky and good Illinois flight and hotel deals are usually available. Spring and fall tend to have perfect weather and are great times to visit, although the tornado season is March through May.Chicago summers can have temperatures well into the 30s (C) with humidity to match. Winters are cold and raw with temperatures in the teens and occasional blizzards. Mild winters are not uncommon, but if booking Illinois flight and travel plans during the winter it’s advisable to pack with snow and cold in mind.

Getting around Illinois

A tough city to drive in, Chicago has convenient public transportation, taxis are easy to come by, and many areas are a pleasure to walk through. The Chicago Transit Authority operates the “L” (or “El”) a system of elevated trains that run 24 hours a day. There is also a River Bus that runs during rush hour in the summer, and the city is becoming increasingly bike friendly.

Except for Chicago, Illinois is mostly a quiet, rural state. Yet Amtrak trains, numerous commuter railroads, and, to a lesser extent, buses make getting around on public transportation feasible. Cycling is also generally easy on the state’s flat plains.

Once you reach your destination, check for local transportation, but be prepared to rent a car.

  • When is the best time to fly to Illinois?

    Peak Season: Winter is a prime time for skiing and snowmobiling in Illinois. Summer is the peak of the festival season in the Chicago area with major events taking place in the parks and neighbourhoods every weekend, despite the heat and humidity. While many tourists gather on the great state of Illinois during the summer season, it’s more likely cheap flights to Illinois will be available during the winter months. Off Season: September can be the most enjoyable and mildest month of the year to visit Chicago, but there is less going on during this period. Fall is a wonderful time to visit the rest of the state and enjoy the milder temperatures and changing foliage. January to March is when Chicago is least busy and deals on hotels are usually attainable. However, it can be cold and windy.

  • Can I find cheaper flights to Illinois if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Illinois?

    Based on reviews from Cheapflights users, WestJet is rated the highest out of the airlines that fly to Illinois.

  • What is the cheapest airport to fly to in Illinois?

    Chicago O'Hare Intl is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago O'Hare Intl typically cost C$ 52, while round-trip flights cost around C$ 27.

  • How much is a round-trip flight to Illinois?

    A round-trip flight to Illinois will typically cost around C$ 671, however they can be found for as little as C$ 19.

  • Where does the fastest flight to Illinois depart from?

    For those looking to save time traveling to Illinois, Toronto offers the quickest one-way flight (1 hour 49 minutes).

  • Does Chicago O'Hare Intl have rental cars?

    Yes. Those touching down at Chicago O'Hare Intl can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to Chicago O'Hare Intl?

    Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 km away from Chicago O'Hare Intl).

See more FAQs

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Certainly. Search results for flights to Illinois shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Illinois flights so you can book your flight when prices are ideal. Enable price alerts by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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