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 29/8. Fares are subject to change and may not be available on all flights or dates of travel.
YTO — CHI
3 Aug — 10 Aug1
Round-trip
1 adult
Economy
Cheapflights Tip: The best prices from Toronto to Chicago are usually found in June or April, booked 52 days in advance, depart on a Friday or Thursday and return on a Tuesday
Cheap flight deals from Toronto to Chicago
Discover tips and strategies to find the most affordable flight options for your journey from Toronto (YTO) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 29 July 2025.
Explore the most affordable flight options available from Toronto to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2025.
Fri 22/87:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Sat 6/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 26/7C$ 203
Thu 4/97:00 a.m.YYZ - ORD
Nonstop1h 59mLufthansa
Sun 7/97:10 a.m.ORD - YYZ
Nonstop1h 48mLufthansa
Deal found 27/7C$ 206
Fri 19/99:00 p.m.YYZ - ORD
Nonstop2h 07mUnited Airlines
Mon 22/911:40 a.m.ORD - YYZ
1 stop4h 39mUnited Airlines
Deal found 27/7C$ 207
Wed 27/812:05 p.m.YYZ - ORD
2 stops9h 11mAir Canada
Wed 3/98:25 p.m.ORD - YYZ
Nonstop1h 43mAir Canada
Deal found 27/7C$ 209
Mon 25/87:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Tue 26/85:20 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 26/7C$ 211
Fri 24/107:50 a.m.YTZ - MDW
Nonstop1h 49mMultiple Airlines
Sun 26/1011:00 a.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 27/7C$ 218
Sun 12/103:25 p.m.YTZ - ORD
1 stop5h 57mAir Canada
Sat 18/1010:40 a.m.ORD - YTZ
1 stop5h 05mAir Canada
Deal found 27/7C$ 226
Wed 10/97:35 a.m.YYZ - ORD
1 stop7h 31mAmerican Airlines
Wed 17/96:00 a.m.ORD - YYZ
1 stop5h 04mAmerican Airlines
Deal found 27/7C$ 255
Wed 10/92:50 p.m.YYZ - MDW
1 stop4h 47mDelta
Wed 17/99:20 a.m.MDW - YYZ
1 stop8h 08mDelta
Deal found 26/7C$ 292
Sun 12/1012:15 p.m.YYZ - ORD
1 stop6h 59mDelta
Wed 15/1010:30 a.m.ORD - YYZ
1 stop3h 48mDelta
Deal found 27/7C$ 302
Sat 27/96:00 a.m.YYZ - MDW
1 stop12h 35mWestJet
Tue 30/99:20 a.m.MDW - YYZ
1 stop8h 08mWestJet
Deal found 27/7C$ 379
Tue 2/97:30 p.m.YTZ - ORD
2 stops21h 40mMultiple Airlines
Sat 6/910:40 a.m.ORD - YTZ
1 stop5h 05mMultiple Airlines
Deal found 28/7C$ 383
Best flights from Toronto to Chicago
Discover carefully curated flight deals from Toronto to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 29 July 2025.
Fri 22/87:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Thu 28/89:40 a.m.MDW - YTZ
Nonstop1h 40mPorter Airlines
Deal found 26/7C$ 203
Thu 4/97:00 a.m.YYZ - ORD
Nonstop1h 59mLufthansa
Sun 7/97:10 a.m.ORD - YYZ
Nonstop1h 48mLufthansa
Deal found 27/7C$ 206
Fri 19/99:00 p.m.YYZ - ORD
Nonstop2h 07mUnited Airlines
Mon 22/911:40 a.m.ORD - YYZ
1 stop4h 39mUnited Airlines
Deal found 27/7C$ 207
Wed 27/812:05 p.m.YYZ - ORD
2 stops9h 11mAir Canada
Wed 3/98:25 p.m.ORD - YYZ
Nonstop1h 43mAir Canada
Deal found 27/7C$ 209
Mon 25/87:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Tue 26/85:20 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 26/7C$ 211
Fri 24/107:50 a.m.YTZ - MDW
Nonstop1h 49mMultiple Airlines
Sun 26/1011:00 a.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 27/7C$ 218
Wed 10/97:35 a.m.YYZ - ORD
1 stop7h 31mAmerican Airlines
Wed 17/96:00 a.m.ORD - YYZ
1 stop5h 04mAmerican Airlines
Deal found 27/7C$ 255
Wed 10/92:50 p.m.YYZ - MDW
1 stop4h 47mDelta
Wed 17/99:20 a.m.MDW - YYZ
1 stop8h 08mDelta
Deal found 26/7C$ 292
Sat 27/96:00 a.m.YYZ - MDW
1 stop12h 35mWestJet
Tue 30/99:20 a.m.MDW - YYZ
1 stop8h 08mWestJet
Deal found 27/7C$ 379
Sun 12/103:25 p.m.YTZ - ORD
1 stop5h 57mAir Canada
Sat 18/1010:40 a.m.ORD - YTZ
1 stop5h 05mAir Canada
Deal found 27/7C$ 226
Sun 12/1012:15 p.m.YYZ - ORD
1 stop6h 59mDelta
Wed 15/1010:30 a.m.ORD - YYZ
1 stop3h 48mDelta
Deal found 27/7C$ 302
Tue 2/97:30 p.m.YTZ - ORD
2 stops21h 40mMultiple Airlines
Sat 6/910:40 a.m.ORD - YTZ
1 stop5h 05mMultiple Airlines
Deal found 28/7C$ 383
Direct flights from Toronto to Chicago
Explore direct flight options from Toronto to Chicago based on user searches, and compare prices and availability for your desired travel dates. Data last updated 29 July 2025.
Fri 22/87:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Sat 6/99:35 a.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 26/7C$ 203
Thu 4/97:00 a.m.YYZ - ORD
Nonstop1h 59mLufthansa
Sun 7/97:10 a.m.ORD - YYZ
Nonstop1h 48mLufthansa
Deal found 27/7C$ 206
Thu 28/86:35 p.m.YYZ - ORD
Nonstop1h 54mAir Canada
Sun 31/86:20 p.m.ORD - YYZ
Nonstop1h 44mAir Canada
Deal found 27/7C$ 209
Mon 25/87:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Tue 26/85:20 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 26/7C$ 211
Fri 24/107:50 a.m.YTZ - MDW
Nonstop1h 49mMultiple Airlines
Sun 26/1011:00 a.m.MDW - YTZ
Nonstop1h 42mMultiple Airlines
Deal found 27/7C$ 218
Tue 19/811:00 a.m.YYZ - ORD
Nonstop2h 03mUnited Airlines
Tue 2/99:12 p.m.ORD - YYZ
Nonstop1h 46mUnited Airlines
Deal found 27/7C$ 230
Sun 21/96:30 a.m.YYZ - ORD
Nonstop1h 55mAmerican Airlines
Tue 23/911:48 a.m.ORD - YYZ
Nonstop1h 43mAmerican Airlines
Deal found 29/7C$ 348
Thu 4/92:45 p.m.YYZ - ORD
Nonstop2h 03mMultiple Airlines
Sun 7/92:00 p.m.ORD - YYZ
Nonstop1h 43mMultiple Airlines
Deal found 29/7C$ 370
Last-minute flights from Toronto to Chicago
Discover last-minute flight deals from Toronto to Chicago. Data last updated 29 July 2025 and is based on user searches.
Mon 4/82:30 p.m.YYZ - ORD
1 stop8h 57mWestJet
Mon 18/87:00 p.m.ORD - YYZ
1 stop13h 22mWestJet
Deal found 28/7C$ 523
Mon 4/81:20 p.m.YYZ - MDW
1 stop9h 22mWestJet
Mon 18/812:43 p.m.MDW - YYZ
1 stop8h 15mWestJet
Deal found 28/7C$ 541
Wed 6/89:00 a.m.YYZ - ORD
Nonstop1h 55mUnited Airlines
Sun 10/89:14 p.m.ORD - YYZ
Nonstop1h 44mUnited Airlines
Deal found 27/7C$ 450
Wed 6/85:15 p.m.YTZ - ORD
2 stops14h 49mMultiple Airlines
Mon 11/84:37 p.m.ORD - YTZ
2 stops20h 03mMultiple Airlines
Deal found 26/7C$ 631
Thu 7/87:55 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Tue 12/85:20 p.m.MDW - YTZ
Nonstop1h 42mPorter Airlines
Deal found 27/7C$ 412
Thu 7/810:25 a.m.YTZ - ORD
1 stop5h 30mAir Canada
Tue 12/810:40 a.m.ORD - YTZ
1 stop5h 06mAir Canada
Deal found 27/7C$ 454
Thu 7/87:55 a.m.YTZ - MDW
Nonstop1h 50mAir Transat
Tue 12/85:20 p.m.MDW - YTZ
Nonstop1h 42mAir Transat
Deal found 27/7C$ 461
Thu 7/811:00 a.m.YYZ - ORD
1 stop7h 11mAmerican Airlines
Fri 8/88:29 p.m.ORD - YYZ
Nonstop2h 00mAmerican Airlines
Deal found 27/7C$ 514
Thu 7/87:55 a.m.YTZ - MDW
Nonstop1h 50mMultiple Airlines
Mon 11/89:40 a.m.MDW - YTZ
Nonstop1h 40mMultiple Airlines
Deal found 28/7C$ 542
Fri 8/89:45 a.m.YYZ - ORD
1 stop7h 28mDelta
Tue 12/89:10 a.m.ORD - YYZ
1 stop7h 13mDelta
Deal found 29/7C$ 425
Fri 8/86:15 a.m.YYZ - ORD
1 stop4h 37mAir Canada
Tue 12/88:25 p.m.ORD - YYZ
Nonstop1h 45mAir Canada
Deal found 27/7C$ 455
Fri 8/86:30 a.m.YYZ - MDW
1 stop6h 59mDelta
Tue 12/89:15 a.m.MDW - YYZ
1 stop8h 15mDelta
Deal found 27/7C$ 517
One-way flights from Toronto to Chicago
Search for one-way flight options from Toronto to Chicago. Find affordable one-way fares based on user searches. Data last updated 29 July 2025.
Fri 29/89:00 a.m.YTZ - MDW
Nonstop1h 50mPorter Airlines
Deal found 29/7C$ 141
Sat 25/103:10 p.m.YYZ - ORD
Nonstop1h 55mAmerican Airlines
Deal found 27/7C$ 145
Sat 27/97:50 a.m.YTZ - MDW
Nonstop1h 49mAir Transat
Deal found 29/7C$ 145
Mon 6/108:25 a.m.YTZ - ORD
1 stop7h 30mAir Canada
Deal found 29/7C$ 147
Wed 10/910:00 a.m.YYZ - ORD
Nonstop1h 53mAir Canada
Deal found 27/7C$ 152
Tue 26/810:05 a.m.YYZ - ORD
1 stop5h 24mUnited Airlines
Deal found 27/7C$ 161
Tue 26/86:30 a.m.YYZ - MDW
1 stop6h 58mDelta
Deal found 27/7C$ 185
Mon 6/106:00 a.m.YKF - ORD
1 stop11h 43mMultiple Airlines
Deal found 29/7C$ 187
Sun 24/86:30 a.m.YYZ - ORD
1 stop7h 15mDelta
Deal found 28/7C$ 202
Tue 9/91:20 p.m.YYZ - MDW
1 stop9h 06mWestJet
Deal found 29/7C$ 209
Sun 17/84:00 p.m.YYZ - ORD
1 stop26h 05mMultiple Airlines
Deal found 26/7C$ 210
Tue 30/96:00 a.m.YKF - ORD
1 stop11h 43mWestJet
Deal found 28/7C$ 221
Cheapflights Fare Finder
Customize your flight search to find flights from Toronto to Chicago 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 29 July 2025.
Use the filters below to find and compare flights from Toronto to Chicago that are best for you.
Fly from
Toronto
Fly to
Chicago
Route
Depart
Return
Price
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Fri 22/8
7:55 a.m.-8:45 a.m.
Nonstop1h 50m
Chicago Midway
Thu 28/8
9:40 a.m.-12:20 p.m.
Nonstop1h 40m
C$ 203
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Thu 4/9
7:00 a.m.-7:59 a.m.
Nonstop1h 59m
Chicago O'Hare Intl
Sun 7/9
7:10 a.m.-9:58 a.m.
Nonstop1h 48m
C$ 206
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Fri 19/9
9:00 p.m.-10:07 p.m.
Nonstop2h 07m
Chicago O'Hare Intl
Mon 22/9
11:40 a.m.-5:19 p.m.
1 stop4h 39m
C$ 207
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Wed 27/8
12:05 p.m.-8:16 p.m.
2 stops9h 11m
Chicago O'Hare Intl
Wed 3/9
8:25 p.m.-11:08 p.m.
Nonstop1h 43m
C$ 209
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Mon 25/8
7:55 a.m.-8:45 a.m.
Nonstop1h 50m
Chicago Midway
Tue 26/8
5:20 p.m.-8:02 p.m.
Nonstop1h 42m
C$ 211
TorontoChicago
YTZ - MDW
YTZMDW
Toronto Island
Fri 24/10
7:50 a.m.-8:39 a.m.
Nonstop1h 49m
Chicago Midway
Sun 26/10
11:00 a.m.-1:42 p.m.
Nonstop1h 42m
C$ 218
TorontoChicago
YTZ - ORD
YTZORD
Toronto Island
Sun 12/10
3:25 p.m.-8:22 p.m.
1 stop5h 57m
Chicago O'Hare Intl
Sat 18/10
10:40 a.m.-4:45 p.m.
1 stop5h 05m
C$ 226
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Wed 10/9
7:35 a.m.-2:06 p.m.
1 stop7h 31m
Chicago O'Hare Intl
Wed 17/9
6:00 a.m.-12:04 p.m.
1 stop5h 04m
C$ 255
TorontoChicago
YYZ - MDW
YYZMDW
Toronto Pearson Intl
Wed 10/9
2:50 p.m.-6:37 p.m.
1 stop4h 47m
Chicago Midway
Wed 17/9
9:20 a.m.-6:28 p.m.
1 stop8h 08m
C$ 292
TorontoChicago
YYZ - ORD
YYZORD
Toronto Pearson Intl
Sun 12/10
12:15 p.m.-6:14 p.m.
1 stop6h 59m
Chicago O'Hare Intl
Wed 15/10
10:30 a.m.-3:18 p.m.
1 stop3h 48m
C$ 302
Flights are sorted by cheapest round-trip flights first.
Deals found on 29/7
Showing 1-10 of 34 results
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Best time to book a flight from Toronto to Chicago
Have a flexible travel schedule? Discover the best time to fly to Chicago from Toronto 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 Toronto to Chicago
How far ahead should I book a flight from Toronto to Chicago?
Use this chart to determine the optimal time to book a round-trip flight from Toronto to Chicago. Price data was last updated on 25 July 2025.
To ensure you get the cheapest price possible for a flight from Toronto to Chicago, you should look to book at least 52 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.
What is the cheapest month to book a flight from Toronto to Chicago?
Currently, January is the cheapest month in which you can book a flight from Toronto to Chicago (average of C$ 261). Flying from Toronto to Chicago in March is currently the most expensive (average of C$ 352). 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 YTO to CHI?
Find hourly flight availability from Toronto to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2025.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 59% on flights from Toronto to Chicago by exploring options for tickets in the evening.
What is the cheapest day to fly from Toronto to Chicago?
Use this chart to determine the cheapest time to fly round-trip from Toronto to Chicago. Price data was last updated on 20 October 2024.
Travelers seeking maximum savings on their Toronto to Chicago flight should consider departing on Friday evenings when fares are most often at their lowest. Wednesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Weekly flight availability from Toronto to Chicago
Explore weekly flight availability from Toronto to Chicago. 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 29 July 2025.
The most flights from YTO to CHI are scheduled on a Monday (65 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 on average).
Reviews of airlines servicing Chicago
Get insights into the airlines that provide service to Chicago. 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 Chicago. Reviews last updated 29 July 2025.
Get a feel of what it's like to fly with Porter Airlines,Delta, andAir Transat from Toronto to Chicago by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Everything was on time and easy. Crew were nice on flights and helpful. International flight, so long and typically uncomfortable but not more than most. Food and drink service were below average but you get what you pay for. Overall, good experience
Toronto to Chicago Travel Guide
O’Hare International Airport is on the northwest side of the city in Chicago. It’s about 14 miles away from the city centre. The airport was built to take over for Midway originally. It’s a busy airport that is a hub for major airlines like United and American Airlines.
Midway International Airport used to be the main airport in Chicago until O’Hare came along. This airport is still the second busiest one in the state of Illinois though. This is a major hub for Southwest Airlines.
Related info for your journey
Find useful and relevant information for your journey from Toronto to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airports serve Toronto to Chicago flights?
Flying out of Toronto to go to Chicago, you’ll show up to board your flight at Pearson International Airport in Toronto. Your flight will be heading for either Chicago O’Hare or Chicago Midway International Airport. You’ll find a variety of options for this route. You can fly direct, with one-stop, or more. There is a large range of prices for these flights.
Which airlines fly directly from Toronto to Chicago?
You can find a lot of direct flights from Toronto to Chicago. American Airlines has a few from Pearson to O’Hare. They’re about two hours long. Air Canada flies the same route. United also flies non-stop between Pearson and O’Hare.
What are the stopover options between Toronto to Chicago?
American Airlines has one-stop flights that land in Charlotte on the way to Chicago. This stopover varies in the time it adds to your travel day. You could be looking at six and a half hours, but also up to eleven hours. Delta makes a stopover in Detroit on the way to either Midway or O’Hare. These flights are only a few hours longer than the direct flights. Air Canada has a route that goes through Montreal before landing at O’Hare.
Do I need a passport or visa to fly from Toronto to Chicago?
While you do need your passport because you’re passing over the border into the US, you do not need a visa if you’re only going for a leisure trip. If you will be working or going to school, or investing on your trip, then you will need some kind of visa.
How can passengers contribute to sustainability when flying from Toronto to Chicago?
Pack a little if you want to minimize your carbon footprint when traveling from Toronto to Chicago. It is one of the easiest strategies for travelers to boost sustainable development. This is accurate since flying efficiently reduces the weight of the airplane, which in turn reduces fuel consumption. Before you even get to the runway, flying out of a green airport will reduce your carbon impact. These airports reduce their emissions through the use of alternative energy, the purchase of biofuels, or the application of green design principles during additions and upgrades.
What sustainability practices does Toronto Pearson International Airport offer?
By 2030, Toronto Pearson International Airport (YYZ) wants to have net-zero carbon emissions. It includes "Scope 1" emissions from the fleet of vehicles and natural gas consumption of the airport, as well as "Scope 2" emissions from the production of the airport's electrical needs. The airport's Scope 2 emissions, which make up 93% of emission levels within its operational procedures, will be totally eradicated by cutting power use and transitioning to 100% green sources. Toronto Pearson Airport will continue to prioritize operational management while concentrating on indirect "Scope 3" emissions.
Which alternative means of transportation is available along this route?
If you intend to travel from Toronto to Chicago without adding to global warming emissions, a flight is your best bet. Flying is the most environmentally beneficial form of transportation since it allows for the most efficient long-distance transportation of people. However, you should opt for nonstop flights, as they consume less fuel per passenger as compared to connecting flights. Alternatively, you can opt for Amtrak trains which are more sustainable compared to trains as they produce at least 50% fewer carbon emissions. The best part is some of these trains adopt green energy; hence are sustainable.
What are the cheapest airlines flying from Toronto to Chicago round-trip?
Our cheapest airline available from Toronto to Chicago is Porter Airlines. Our recent data shows that you can find tickets from as low as C$ 203 on this airline. Additional options worth looking into are Lufthansa and United Airlines, starting at C$ 206 and C$ 207 round-trip. Users have found that Porter Airlines is 43% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Toronto to Chicago one-way?
The cheapest airlines for a one-way flight from Toronto to Chicago are Porter Airlines (C$ 141), American Airlines (C$ 145), and Air Transat (C$ 145).
What are the most popular routes from Toronto to Chicago?
When deciding which route to take from Toronto to Chicago consider Toronto Pearson Intl - Chicago O'Hare Intl, Toronto Pearson Intl - Chicago Midway or Toronto Island - Chicago Midway as they are the most popular.
What are the most reliable airlines from Toronto to Chicago?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Toronto to Chicago on time: Cathay Pacific (100%), SkyWest Airlines (91%), Egyptair (90%).
What are the cheapest flights from Toronto to Chicago?
On average you can expect to pay C$ 2,352 for a flight from Toronto to Chicago. The cheapest flight overall is C$ 193 while the most popular route, (Toronto Pearson Intl - Chicago O'Hare Intl) is currently priced at C$ 195.
Can I find deals for business class flights from Toronto to Chicago?
Yes. Cheapflights offers flight deals from Toronto to Chicago 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 Toronto to Chicago?
Currently, January is the cheapest month in which you can book a flight from Toronto to Chicago (average of C$ 261). Flying from Toronto to Chicago in March is currently the most expensive (average of C$ 352). 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.
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.
Fly from Toronto to Chicago on these airlines
Choose from the following airlines for your flight from Toronto to Chicago. Flights are based on user searches made on Cheapflights and were last updated on 29 July 2025.
Explore flights to Chicago departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 July 2025.
Discover the top 5 airlines that operate flights from Toronto to Chicago. 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 29 July 2025.
Get useful tips and recommendations to enhance your travel experience on your next trip to Chicago. Learn about must-visit attractions, local customs, transportation options, weather conditions, and other valuable tips to make your trip more enjoyable and hassle-free.
Flights from Toronto to Chicago depart from Toronto Pearson International Airport (YYZ). The airport demonstrates its dedication to sustainability by using solar power to run its everyday activities.
United Airlines flying along this route endorses sustainability practices. The airline is adopting the use of Sustainable Aviation fuel (SAF) in its fleet and doing away with old planes while adopting modern ones which are fuel efficient.
Before booking your flight ticket, look for a green airport to reduce your carbon footprint. If you need information about sustainable airports like Chicago O’Hare (ORD), explore the carbon Airport Accreditation list.
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 Toronto to Chicago?
Deals for Toronto to Chicago flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Why should you use Cheapflights to find cheap flight tickets from Toronto to Chicago?
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 Chicago from Toronto.
Can Cheapflights find flights from Toronto to Chicago with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Toronto to Chicago, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Toronto to Chicago become cheaper?
Yes, Cheapflights offers price alerts on Toronto to Chicago flights so you can book your travel at the perfect time. Price Alerts can be enabled 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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By clicking 'Accept', you consent to your data being processed by 0 vendors on this web site for the purposes described in this notice. You can review the vendors and their individual processing purposes on the .
To review individual processing purposes and cookie categories, please click ’Select individual purposes’. You can review and update your choices anytime by clicking the ’Privacy Preferences’ link in the page side navigation.