Cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport from C$ 231
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 30/9. Fares are subject to change and may not be available on all flights or dates of travel.
YUL — ORD
18 Oct — 25 Oct1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Montreal Pierre Elliott Trudeau Intl to Chicago O'Hare Intl are usually found in April or January, booked 83 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl
Enter your travel dates to find the best prices.
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Cheapest flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Explore the most affordable flight options available from Pierre Elliott Trudeau Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.
Thu 1/105:00 a.m. -
1 stop5h 00m
Mon 5/102:00 p.m. -
1 stop4h 45m
Deal found 13/9C$ 393
Fri 23/108:35 a.m. -
2 stops5h 48m
Mon 26/101:55 p.m. -
1 stop6h 50m
Deal found 13/9C$ 394
Sat 10/106:30 p.m. -
Nonstop2h 42m
Wed 14/108:45 a.m. -
Nonstop2h 15m
Deal found 16/9C$ 396
Thu 15/106:30 p.m. -
Nonstop2h 42m
Tue 20/108:45 a.m. -
Nonstop2h 15m
Deal found 17/9C$ 397
Thu 1/1011:10 a.m. -
1 stop4h 45m
Sun 4/102:00 p.m. -
1 stop4h 45m
Deal found 15/9C$ 399
Thu 12/113:10 p.m. -
1 stop5h 48m
Sun 15/111:55 p.m. -
1 stop4h 51m
Deal found 12/9C$ 400
Thu 29/101:10 p.m. -
Nonstop2h 42m
Thu 5/117:05 a.m. -
Nonstop2h 12m
Deal found 13/9C$ 401
Wed 14/106:30 p.m. -
Nonstop2h 42m
Mon 19/102:00 p.m. -
1 stop6h 45m
Deal found 14/9C$ 404
Sun 18/109:10 a.m. -
1 stop5h 13m
Wed 21/109:55 a.m. -
1 stop6h 26m
Deal found 14/9C$ 408
Best flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover carefully curated flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.
Tue 13/106:10 a.m. -
Nonstop2h 41m
Sat 24/107:11 a.m. -
Nonstop2h 29m
Deal found 16/9C$ 425
Wed 14/1012:50 p.m. -
1 stop4h 42m
Sat 17/101:55 p.m. -
1 stop8h 30m
Deal found 14/9C$ 432
Thu 22/109:15 a.m. -
1 stop6h 11m
Sun 25/101:55 p.m. -
1 stop6h 50m
Deal found 16/9C$ 434
Tue 15/129:40 a.m. -
1 stop9h 43m
Fri 8/17:00 a.m. -
1 stop5h 35m
Deal found 12/9C$ 434
Wed 14/109:45 a.m. -
Nonstop2h 36m
Wed 21/107:11 a.m. -
Nonstop2h 29m
Deal found 15/9C$ 469
Wed 28/106:00 a.m. -
1 stop5h 29m
Thu 29/101:56 p.m. -
1 stop8h 29m
Deal found 17/9C$ 434
Tue 2/34:45 p.m. -
Nonstop3h 00m
Wed 3/35:00 a.m. -
1 stop7h 10m
Deal found 16/9C$ 469
Tue 29/99:30 a.m. -
1 stop9h 34m
Fri 2/107:05 a.m. -
1 stop8h 14m
Deal found 15/9C$ 435
Wed 30/92:25 p.m. -
1 stop5h 50m
Wed 7/1010:05 a.m. -
1 stop7h 53m
Deal found 14/9C$ 435
Tue 29/99:30 a.m. -
1 stop9h 34m
Tue 6/1011:19 a.m. -
1 stop3h 56m
Deal found 13/9C$ 435
Thu 1/106:00 a.m. -
1 stop7h 59m
Thu 8/107:00 a.m. -
1 stop8h 15m
Deal found 15/9C$ 435
Direct flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Explore direct flight options from Pierre Elliott Trudeau Intl to O'Hare Intl based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.
Sat 10/106:30 p.m. -
Nonstop2h 42m
Wed 14/108:45 a.m. -
Nonstop2h 15m
Deal found 16/9C$ 396
Thu 15/106:30 p.m. -
Nonstop2h 42m
Tue 20/108:45 a.m. -
Nonstop2h 15m
Deal found 17/9C$ 397
Fri 23/106:30 p.m. -
Nonstop2h 42m
Wed 28/107:05 a.m. -
Nonstop2h 12m
Deal found 14/9C$ 399
Thu 29/101:10 p.m. -
Nonstop2h 42m
Thu 5/117:05 a.m. -
Nonstop2h 12m
Deal found 13/9C$ 401
Tue 6/106:30 p.m. -
Nonstop2h 42m
Tue 13/108:45 a.m. -
Nonstop2h 15m
Deal found 15/9C$ 406
Thu 1/106:30 p.m. -
Nonstop2h 42m
Mon 5/1011:05 a.m. -
Nonstop2h 15m
Deal found 17/9C$ 410
Sat 10/106:30 p.m. -
Nonstop2h 42m
Tue 13/108:45 a.m. -
Nonstop2h 15m
Deal found 12/9C$ 411
Sat 10/106:30 p.m. -
Nonstop2h 42m
Fri 16/1011:15 a.m. -
Nonstop2h 15m
Deal found 15/9C$ 413
Mon 12/106:10 a.m. -
Nonstop2h 41m
Thu 22/107:11 a.m. -
Nonstop2h 29m
Deal found 16/9C$ 425
Last-minute flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover last-minute flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl. Data last updated 18 September 2026 and is based on user searches.
Thu 1/105:00 a.m. -
1 stop5h 00m
Mon 5/102:00 p.m. -
1 stop4h 45m
Deal found 13/9C$ 393
Thu 1/1011:10 a.m. -
1 stop4h 45m
Sun 4/102:00 p.m. -
1 stop4h 45m
Deal found 15/9C$ 399
Sat 3/108:10 a.m. -
1 stop6h 13m
Mon 5/102:00 p.m. -
1 stop4h 45m
Deal found 15/9C$ 400
Sat 10/106:30 p.m. -
Nonstop2h 42m
Wed 14/108:45 a.m. -
Nonstop2h 15m
Deal found 16/9C$ 396
Wed 14/106:30 p.m. -
Nonstop2h 42m
Mon 19/102:00 p.m. -
1 stop6h 45m
Deal found 14/9C$ 404
Thu 15/106:30 p.m. -
Nonstop2h 42m
Tue 20/108:45 a.m. -
Nonstop2h 15m
Deal found 17/9C$ 397
Sun 18/109:10 a.m. -
1 stop5h 13m
Wed 21/109:55 a.m. -
1 stop6h 26m
Deal found 14/9C$ 408
Fri 23/108:35 a.m. -
2 stops5h 48m
Mon 26/101:55 p.m. -
1 stop6h 50m
Deal found 13/9C$ 394
Thu 29/101:10 p.m. -
Nonstop2h 42m
Thu 5/117:05 a.m. -
Nonstop2h 12m
Deal found 13/9C$ 401
One-way flights from Pierre Elliott Trudeau Intl to O'Hare Intl
Search for one-way flight options from Pierre Elliott Trudeau Intl to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.
Wed 30/91:15 p.m. -
Nonstop2h 37m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 231
Fri 30/109:25 a.m. -
Nonstop2h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 13/9C$ 232
Thu 11/36:10 p.m. -
Nonstop2h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 234
Tue 13/106:10 a.m. -
Nonstop2h 41m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 17/9C$ 235
Sat 3/101:15 p.m. -
Nonstop2h 37m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 15/9C$ 236
Thu 7/112:40 p.m. -
1 stop6h 00m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 14/9C$ 243
Sat 10/106:30 p.m. -
Nonstop2h 42m
Wed 31/1212:00 a.m. -
Nonstop0h 00m
Deal found 16/9C$ 250
Find flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover tips and strategies to find the most affordable flight options for your journey from Pierre Elliott Trudeau Intl (YUL) to O'Hare Intl (ORD). 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 18 September 2026.
Customize your flight search to find flights from Pierre Elliott Trudeau Intl to O'Hare Intl 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 7,457,451 searches. Data last updated 18 September 2026.
Use the filters below to find and compare flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Cheapest round-trip
Quickest round-trip
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Thu 15/10
9:45 a.m.-11:21 a.m.
Nonstop2h 36m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 235
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 16/10
6:10 a.m.-7:51 a.m.
Nonstop2h 41m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 235
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 12/3
12:45 p.m.-8:37 p.m.
1 stop8h 52m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 257
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 14/10
6:00 a.m.-12:59 p.m.
1 stop7h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 26/9
9:45 a.m.-11:21 a.m.
Nonstop2h 36m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 7/10
9:30 a.m.-6:20 p.m.
1 stop9h 50m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Wed 28/10
6:00 a.m.-12:59 p.m.
1 stop7h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Tue 6/10
6:00 a.m.-12:59 p.m.
1 stop7h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Fri 4/12
6:00 a.m.-1:59 p.m.
1 stop8h 59m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 259
MontrealChicago
YUL Montreal Pierre Elliott Trudeau Intl - ORD Chicago O'Hare Intl
YULORD
Montreal Pierre Elliott Trudeau Intl
Sat 10/10
9:10 a.m.-2:55 p.m.
1 stop6h 45m
Chicago O'Hare Intl
Wed 31/12
12:00 a.m.-1:00 a.m.
Nonstop0h 00m
C$ 262
Flights are sorted by cheapest round-trip flights first.
Deals found on 17/9
Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Pierre Elliott Trudeau Intl to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Pierre Elliott Trudeau Intl with our price prediction graph.
YUL-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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Prices
Airlines
More
How far ahead should I book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (average of C$ 369). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in June is currently the most expensive (average of C$ 646). 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 YUL to ORD?
Find hourly flight availability from Pierre Elliott Trudeau Intl to O'Hare Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 September 2026.
It’s optimal to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in the evening. By choosing this option you can save up to 62% on the cost of your flight, compared to a flight at noon.
How much does it cost to fly round-trip from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Airfare is below average for this route at the moment.
Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport flights typically cost between C$ 407 and C$ 645 in October.The cheapest round-trip price found within the last 5 days was C$ 393 on Air Canada (1 Oct-5 Oct).
Weekly flight availability from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport
Explore weekly flight availability from Pierre Elliott Trudeau Intl to O'Hare Intl. 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 18 September 2026.
The most flights from YUL to ORD are scheduled on a Wednesday (33 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (26 on average).
What’s the top layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Share of one-stop round-trip flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Toronto (YYZ) – chosen by Cheapflights users on 71% of one-stop itineraries from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Average round-trip fare for 1-stop flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
Toronto (YTZ) is the most affordable 1-stop option, with an average round-trip price of C$ 359.
What’s the fastest layover option from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Shortest average travel time for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Toronto (YTZ) have the shortest average one-way travel time for 1-stop routes: 5h 00m.
Which airport typically offers the quickest layover for flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Average layover duration for 1-stop one-way flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Toronto (YTZ) offer the fastest connection on this route, with an average layover time of 1h 18m.
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 18 September 2026.
Check out reviews from past customers who have flown with Porter Airlines,United Airlines, andAmerican Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
The flight including check-in, checked baggage, boarding, flight and timing were great. My checked bag was delayed two days which was concerning. They did deliver it to my door though which was great.
Related info for your journey
Find useful and relevant information for your journey from Pierre Elliott Trudeau Intl to O'Hare Intl. 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
A quick flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport can take about 2h 41m. United Airlines provides one of the quickest options available for as low as C$ 425. There are 1199 km between Montreal Pierre Elliott Trudeau Intl Airport and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
What are the cheapest airlines flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport round-trip?
Currently priced at C$ 251, Porter Airlines will fly you from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport and back. In addition to Porter Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from C$ 261 and C$ 267, respectively. Porter Airlines is priced at 50% lower than the current average price of a flight leaving 3 months from now.
What are the most reliable airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
The top 3 most reliable airlines when flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport are ANA (85%), Avianca (85%) and Emirates (77%).
What are the cheapest flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Looking for the cheapest flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport? While on average our users pay C$ 2,340, our data indicates the cheapest price to be C$ 287. The most popular route (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl), is priced around C$ 389.
Can I find deals for flights from Pierre Elliott Trudeau Intl to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Pierre Elliott Trudeau Intl to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Pierre Elliott Trudeau Intl to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Pierre Elliott Trudeau Intl to O'Hare Intl.
Can I find deals for business class flights from Pierre Elliott Trudeau Intl to O'Hare Intl?
Yes. Cheapflights offers flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl 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 Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport (average of C$ 369). Flying from Montreal Pierre Elliott Trudeau Intl Airport to Chicago O'Hare Intl Airport in June is currently the most expensive (average of C$ 646). 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.
Search flights from Pierre Elliott Trudeau Intl to O'Hare Intl by cabin class
Find flights from Pierre Elliott Trudeau Intl to O'Hare Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.
Browse through other flights departing from Pierre Elliott Trudeau Intl. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.
Top 4 airlines flying from Pierre Elliott Trudeau Intl to O'Hare Intl
Discover the top 4 airlines that operate flights from Pierre Elliott Trudeau Intl to O'Hare Intl. 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 7,457,451 searches. Data last updated 18 September 2026.
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 Pierre Elliott Trudeau Intl to O'Hare Intl?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Pierre Elliott Trudeau Intl to O'Hare Intl. 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 Pierre Elliott Trudeau Intl to O'Hare Intl?
Millions of users choose and trust Cheapflights to book the best flight deals from Pierre Elliott Trudeau Intl to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Pierre Elliott Trudeau Intl to O'Hare Intl with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Pierre Elliott Trudeau Intl to O'Hare Intl, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Pierre Elliott Trudeau Intl to O'Hare Intl become cheaper?
Not ready to book yet? You can track prices for flights from Pierre Elliott Trudeau Intl to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.
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