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Cheap flights from Montreal to Chicago O'Hare Intl Airport from C$ 239

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 30/1. Fares are subject to change and may not be available on all flights or dates of travel.
YMQ — ORD
7 Jan — 14 Jan1
1 adult

The best prices from Montreal to Chicago O'Hare Intl are usually found in April or September, booked 83 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Montreal to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Montreal (YMQ) 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 2 January 2025.

Round-trip from

C$ 430

One-way from

C$ 239

Popular in

January

Cheapest in

April

Average price

C$ 637
3/2-5/2
  • 3/2-5/2
  • 3 total stops
  • 26h 31m total
  • Montreal to Chicago
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30/1
  • 30/1
  • 1 total stop
  • 19h 22m total
  • Montreal to Chicago
Search Deals
High demand for flights, 4% 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 flight deals from Montreal to O'Hare Intl

Cheapest flights from Montreal to O'Hare Intl
Explore the most affordable flight options available from Montreal to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 January 2025.

Mon 3/26:45 a.m.YUL - ORD
2 stops17h 47mMultiple Airlines
Wed 5/25:11 a.m.ORD - YUL
1 stop8h 44mMultiple Airlines
Deal found 1/1C$ 430
Tue 14/112:55 p.m.YUL - ORD
2 stops6h 32mAmerican Airlines
Tue 14/18:40 p.m.ORD - YUL
1 stop12h 30mAmerican Airlines
Deal found 1/1C$ 460
Thu 23/11:10 p.m.YUL - ORD
Nonstop2h 35mAir Canada
Sun 26/111:35 a.m.ORD - YUL
Nonstop2h 12mAir Canada
Deal found 1/1C$ 498
Wed 12/29:15 a.m.YUL - ORD
Nonstop2h 39mUnited Airlines
Wed 19/22:00 p.m.ORD - YUL
Nonstop2h 19mUnited Airlines
Deal found 1/1C$ 524
Thu 23/15:15 p.m.YUL - ORD
1 stop21h 33mDelta
Sun 26/17:40 p.m.ORD - YUL
1 stop13h 49mDelta
Deal found 2/1C$ 536
Thu 3/712:45 p.m.YUL - ORD
1 stop22h 17mWestJet
Sun 6/77:35 p.m.ORD - YUL
1 stop19h 27mWestJet
Deal found 1/1C$ 627

Find flights from Montreal to O'Hare Intl within your budget

Customize your flight search to find flights from Montreal 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 629,999 searches. Data last updated 2 January 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 3/2

6:45 a.m.-11:32 p.m.

2 stops17h 47m

Chicago O'Hare Intl

Wed 5/2

5:11 a.m.-2:55 p.m.

1 stop8h 44m

C$ 430

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 14/1

12:55 p.m.-6:27 p.m.

2 stops6h 32m

Chicago O'Hare Intl

Tue 14/1

8:40 p.m.-10:10 a.m.

1 stop12h 30m

C$ 460

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 23/1

1:10 p.m.-2:45 p.m.

Nonstop2h 35m

Chicago O'Hare Intl

Sun 26/1

11:35 a.m.-2:47 p.m.

Nonstop2h 12m

C$ 498

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Wed 12/2

9:15 a.m.-10:54 a.m.

Nonstop2h 39m

Chicago O'Hare Intl

Wed 19/2

2:00 p.m.-5:19 p.m.

Nonstop2h 19m

C$ 524

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 23/1

11:20 a.m.-7:59 p.m.

1 stop9h 39m

Chicago O'Hare Intl

Sun 26/1

7:40 p.m.-4:22 p.m.

1 stop19h 42m

C$ 536

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Fri 7/2

5:15 p.m.-10:36 p.m.

1 stop6h 21m

Chicago O'Hare Intl

Sat 15/2

4:15 p.m.-11:40 p.m.

1 stop6h 25m

C$ 633

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 30/1

3:55 p.m.-10:17 a.m.

1 stop19h 22m

C$ 239

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Thu 30/1

1:10 p.m.-2:45 p.m.

Nonstop2h 35m

C$ 299

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Tue 4/3

7:05 a.m.-12:55 p.m.

1 stop6h 50m

C$ 319

MontrealChicago

YUL - ORD

YULORD

Montreal Pierre Elliott Trudeau Intl

Mon 3/3

6:30 p.m.-11:29 p.m.

1 stop5h 59m

C$ 321

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/12

Showing 1-10 of 12 results
1
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Best time to book a flight from Montreal to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Montreal 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 from Montreal to O'Hare Intl

Get recent, data-driven insights about flights from Montreal to O'Hare Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Montreal to Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Montreal to O'Hare Intl. Price data was last updated on 27 December 2024.

The price you pay for your flight from Montreal to Chicago O'Hare Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 83 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Montreal to Chicago O'Hare Intl Airport?

Currently, January is the cheapest month in which you can book a flight from Montreal to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Montreal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 355). 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 YMQ to ORD?

Find hourly flight availability from Montreal 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 2 January 2025.

It’s typically best to fly out from Montreal to Chicago O'Hare Intl Airport in the morning. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

What is the cheapest day to fly from Montreal to Chicago O'Hare Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Montreal to O'Hare Intl. Price data was last updated on 16 December 2024.

Travelers seeking maximum savings on their Montreal to Chicago O'Hare Intl Airport flight should consider departing on Thursday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Montreal to Chicago O'Hare Intl Airport

Explore weekly flight availability from Montreal 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 2 January 2025.

The most flights from YMQ to ORD are scheduled on a Wednesday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport 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 Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, 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 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 2 January 2025.
Read through reviews of airlines operating flights from Montreal to Chicago, such as American Airlines, Air Canada and WestJet. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,537 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,969 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.2
Good
2,815 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Canada
7.0
Good
8,477 reviews
Delta
8.0
Very good
8,537 reviews
Check prices

Boarding

8.2

Entertainment

7.9

Crew

8.6

Overall

8.0

Food

7.3

Comfort

8.0

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Montreal 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.

  • What are the cheapest airlines flying from Montreal to Chicago O'Hare Intl Airport round-trip?

    Currently priced at C$ 460, American Airlines will fly you from Montreal to Chicago O'Hare Intl Airport and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Air Canada and United Airlines - these airlines can fly you to your destination from C$ 498 and C$ 524, respectively. These flights start at 17% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Montreal to Chicago O'Hare Intl Airport one-way?

    One-way options have recently been found by users for as low as C$ 299 on Air Canada. Other airlines that offer cheap prices include Delta from C$ 319 and United Airlines from C$ 321 one-way.

  • What are the most reliable airlines from Montreal to Chicago O'Hare Intl Airport?

    Consider Alaska Airlines (97%), American Airlines (97%) or Envoy Air (97%) when booking your flight. These represent the most reliable airlines when flying from Montreal to Chicago O'Hare Intl Airport.

  • What are the cheapest flights from Montreal to Chicago O'Hare Intl Airport?

    Looking for the cheapest flight from Montreal to Chicago O'Hare Intl Airport? While on average our users pay C$ 1,478, our data indicates the cheapest price to be C$ 230. The most popular route (Montreal Pierre Elliott Trudeau Intl - Chicago O'Hare Intl), is priced around C$ 397.

  • Can I find deals for flights from Montreal to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Montreal to O'Hare Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montreal 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 Montreal to O'Hare Intl.

  • Can I find deals for business class flights from Montreal to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Montreal 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 to Chicago O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Montreal to Chicago O'Hare Intl Airport (average of C$ 261). Flying from Montreal to Chicago O'Hare Intl Airport in March is currently the most expensive (average of C$ 355). 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

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Top 6 airlines flying from Montreal to O'Hare Intl

Discover the top 6 airlines that operate flights from Montreal 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 629,999 searches. Data last updated 2 January 2025.
AirlineCheapestAverageFlexibilityOn-time
Porter AirlinesCheapestC$ 330AverageC$ 504FlexibilityNo cancel feeOn-time52%
Search Porter Airlines flights
Air CanadaCheapestC$ 370AverageC$ 594FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapestC$ 371AverageC$ 419FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
DeltaCheapestC$ 372AverageC$ 520FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapestC$ 395AverageC$ 522FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
WestJetCheapestC$ 459AverageC$ 621FlexibilityNo cancel feeOn-time60%
Search WestJet flights

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How does Cheapflights help users find flights from Montreal to O'Hare Intl?

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Why should you use Cheapflights to find cheap flight tickets from Montreal to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from Montreal to O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Montreal 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 Montreal 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 Montreal to O'Hare Intl become cheaper?

Not ready to book yet? You can track prices for flights from Montreal to O'Hare Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.

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