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C$ 201+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
— ORD
22 ene. — 29 ene.1
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 17 enero 2025.

Round-trip from

C$ 339

One-way from

C$ 201

Popular in

December

Cheapest in

April

Average price

C$ 410
Porter Airlines
  • Porter Airlines
  • 19/2-25/2
  • Nonstop
  • 3h 32m total
  • Toronto to Chicago
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11/2
  • 11/2
  • 1 total stop
  • 8h 38m total
  • Toronto to Illinois
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High demand for flights, 7% potential price rise
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Best time to find cheap flights, 1% potential price drop
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Average for round-trip flights in January 2025
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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 17 enero 2025
Explore Illinois
Flights to Chicago
Flights to Moline
Flights to Peoria

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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 17 enero 2025.

vie. 14/211:20 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
dom. 16/21:05 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 15/1C$ 339
jue. 6/27:15 a.m.YYZ - ORD
1 stop8h 37mMultiple Airlines
dom. 9/26:15 p.m.ORD - YYZ
1 stop16h 10mMultiple Airlines
Deal found 16/1C$ 344
jue. 6/29:00 a.m.YYZ - ORD
Nonstop2h 10mUnited Airlines
lun. 10/22:05 p.m.ORD - YYZ
Nonstop1h 41mUnited Airlines
Deal found 15/1C$ 356
vie. 7/23:25 p.m.YTZ - ORD
1 stop5h 30mAir Canada
dom. 9/27:20 a.m.ORD - YTZ
1 stop6h 30mAir Canada
Deal found 15/1C$ 362
vie. 7/22:05 p.m.YYZ - ORD
1 stop5h 33mAir Canada
lun. 10/210:53 a.m.ORD - YYZ
Nonstop1h 49mAir Canada
Deal found 16/1C$ 365
jue. 20/211:20 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
dom. 23/21:05 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 16/1C$ 366
vie. 7/26:20 p.m.YYZ - ORD
Nonstop2h 00mBritish Airways
dom. 9/28:11 a.m.ORD - YYZ
Nonstop1h 40mBritish Airways
Deal found 16/1C$ 369
jue. 10/41:15 p.m.YYZ - ORD
Nonstop1h 55mAmerican Airlines
sáb. 12/46:45 a.m.ORD - YYZ
1 stop7h 34mAmerican Airlines
Deal found 16/1C$ 377
mié. 19/210:10 a.m.YYZ - ORD
1 stop3h 45mDelta
lun. 24/22:35 p.m.ORD - YYZ
1 stop8h 04mDelta
Deal found 16/1C$ 385
vie. 7/26:00 a.m.YYZ - MDW
1 stop3h 51mDelta
dom. 9/25:05 p.m.MDW - YYZ
1 stop4h 44mDelta
Deal found 14/1C$ 391
jue. 6/212:20 p.m.YYZ - ORD
1 stop7h 18mLufthansa
dom. 9/24:00 p.m.ORD - YYZ
1 stop5h 15mLufthansa
Deal found 16/1C$ 397
jue. 6/21:05 p.m.YTZ - ORD
2 stops21h 34mMultiple Airlines
dom. 9/25:35 a.m.ORD - YTZ
2 stops13h 30mMultiple Airlines
Deal found 15/1C$ 410

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 17 enero 2025.

Fly from

Any airport

Route

Depart

Return

Price

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

vie. 14/2

11:20 a.m.-12:10 p.m.

Nonstop1h 50m

Chicago Midway

dom. 16/2

1:05 p.m.-3:47 p.m.

Nonstop1h 42m

C$ 339

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

jue. 6/2

7:15 a.m.-2:52 p.m.

1 stop8h 37m

Chicago O'Hare Intl

dom. 9/2

6:15 p.m.-11:25 a.m.

1 stop16h 10m

C$ 344

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

mié. 5/2

6:20 p.m.-7:20 p.m.

Nonstop2h 00m

Chicago O'Hare Intl

mié. 12/2

8:11 a.m.-10:51 a.m.

Nonstop1h 40m

C$ 346

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

vie. 7/2

8:00 a.m.-2:45 p.m.

1 stop7h 45m

Chicago O'Hare Intl

lun. 10/2

10:53 a.m.-1:42 p.m.

Nonstop1h 49m

C$ 352

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

jue. 6/2

9:00 a.m.-10:10 a.m.

Nonstop2h 10m

Chicago O'Hare Intl

lun. 10/2

2:05 p.m.-4:46 p.m.

Nonstop1h 41m

C$ 356

TorontoChicago

YTZ - ORD

YTZORD

Toronto Island

vie. 7/2

3:25 p.m.-7:55 p.m.

1 stop5h 30m

Chicago O'Hare Intl

dom. 9/2

7:20 a.m.-2:50 p.m.

1 stop6h 30m

C$ 362

TorontoChicago

YTZ - MDW

YTZMDW

Toronto Island

jue. 20/2

11:20 a.m.-12:10 p.m.

Nonstop1h 50m

Chicago Midway

dom. 23/2

1:05 p.m.-3:47 p.m.

Nonstop1h 42m

C$ 366

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

jue. 13/2

7:45 a.m.-12:55 p.m.

1 stop6h 10m

Chicago O'Hare Intl

lun. 17/2

6:59 a.m.-4:09 p.m.

1 stop8h 10m

C$ 391

TorontoChicago

YYZ - MDW

YYZMDW

Toronto Pearson Intl

vie. 7/2

6:00 a.m.-8:51 a.m.

1 stop3h 51m

Chicago Midway

dom. 9/2

5:05 p.m.-10:49 p.m.

1 stop4h 44m

C$ 391

TorontoChicago

YYZ - ORD

YYZORD

Toronto Pearson Intl

jue. 6/2

12:20 p.m.-6:38 p.m.

1 stop7h 18m

Chicago O'Hare Intl

dom. 9/2

4:00 p.m.-10:15 p.m.

1 stop5h 15m

C$ 397

Flights are sorted by cheapest round-trip flights first.

Deals found on 16/1

Showing 1-10 of 57 results
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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 8 hours 41 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 Monday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (30 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$ 218

United Airlines

United Airlines

From C$ 249

Porter Airlines

Porter Airlines

From C$ 194

American Airlines

American Airlines

From C$ 250

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 17 enero 2025.
Read through reviews of airlines servicing Illinois, such as Air Canada, United Airlines and American 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
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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
9,681 reviews
Alaska Airlines
8.0
Very good
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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
8,511 reviews
Alaska Airlines
8.0
Very good
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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
1,339 reviews
Alaska Airlines
8.0
Very good
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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
381 reviews
Alaska Airlines
8.0
Very good
9,681 reviews
Check prices

Food

7.1

Crew

8.5

Comfort

7.9

Entertainment

7.1

Boarding

8.2

Overall

8.0

Reviews

1 / 10

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, American Airlines 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$ 68, while round-trip flights cost around C$ 113.

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

    A round-trip flight to Illinois will typically cost around C$ 571, however they can be found for as little as C$ 79.

  • 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 50 minutes).

  • Which airport is closest to Wrigley Field?

    If being close to Wrigley Field is important to you, you’ll want to land at Chicago O'Hare Intl Airport.

  • 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.

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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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