Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport from C$ 172

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 28/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — YUL
4 May — 11 May1
1 adult

Cheapflights Tip: The best prices from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl are usually found in September or January, booked 45 days in advance, depart on a Sunday or Monday and return on a Thursday

Cheap flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Pierre Elliott Trudeau Intl (YUL). 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 April 2025.

Round-trip from

C$ 370

One-way from

C$ 172

Popular in

December

Cheapest in

September

Average price

C$ 528

Good round-trip deal

C$ 298 or less

Good one-way deal

C$ 233 or less
Air Canada
  • Air Canada
  • 29/5-1/6
  • 1 total stop
  • 8h 57m total
  • Chicago to Montreal
Search Deals
28/5
  • 28/5
  • 2 total stops
  • 15h 42m total
  • Chicago to Montreal
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 43 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (C$ 40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals
Price to beat on a one-way flight from Chicago O'Hare Intl to Montreal Pierre Elliott Trudeau Intl.
Search Deals

Find flight deals from O'Hare Intl to Pierre Elliott Trudeau Intl

Cheapest flights from O'Hare Intl to Pierre Elliott Trudeau Intl
Explore the most affordable flight options available from O'Hare Intl to Pierre Elliott Trudeau Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 April 2025.

Thu 29/52:16 p.m.ORD - YUL
1 stop6h 25mAir Canada
Sun 1/68:20 a.m.YUL - ORD
Nonstop2h 32mAir Canada
Deal found 28/4C$ 370
Wed 4/612:41 p.m.ORD - YUL
2 stops10h 56mMultiple Airlines
Wed 11/68:20 a.m.YUL - ORD
Nonstop2h 32mMultiple Airlines
Deal found 27/4C$ 396
Wed 28/55:12 p.m.ORD - YUL
1 stop15h 38mAmerican Airlines
Thu 29/512:30 p.m.YUL - ORD
Nonstop2h 35mAmerican Airlines
Deal found 27/4C$ 414
Sun 15/67:19 a.m.ORD - YUL
Nonstop2h 21mUnited Airlines
Tue 24/66:15 a.m.YUL - ORD
Nonstop2h 44mUnited Airlines
Deal found 28/4C$ 424
Tue 1/72:25 p.m.ORD - YUL
1 stop5h 55mWestJet
Fri 4/75:00 p.m.YUL - ORD
1 stop6h 21mWestJet
Deal found 27/4C$ 488
Tue 15/71:01 p.m.ORD - YUL
1 stop7h 27mDelta
Sun 20/76:00 a.m.YUL - ORD
1 stop7h 50mDelta
Deal found 28/4C$ 524
Thu 8/58:05 p.m.ORD - YUL
1 stop15h 55mSun Country Air
Sun 11/59:00 a.m.YUL - ORD
1 stop9h 15mSun Country Air
Deal found 28/4C$ 532

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl to Pierre Elliott Trudeau 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 29 April 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport that are best for you.

Fly from

O'Hare Intl

Fly to

Pierre Elliott Trudeau Intl

Route

Depart

Return

Price

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 29/5

2:16 p.m.-9:41 p.m.

1 stop6h 25m

Montreal Pierre Elliott Trudeau Intl

Sun 1/6

8:20 a.m.-9:52 a.m.

Nonstop2h 32m

C$ 370

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 4/6

12:41 p.m.-12:37 a.m.

2 stops10h 56m

Montreal Pierre Elliott Trudeau Intl

Wed 11/6

8:20 a.m.-9:52 a.m.

Nonstop2h 32m

C$ 396

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 29/5

2:07 p.m.-5:26 p.m.

Nonstop2h 19m

Montreal Pierre Elliott Trudeau Intl

Sun 1/6

8:20 a.m.-9:52 a.m.

Nonstop2h 32m

C$ 421

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Sun 15/6

7:19 a.m.-10:40 a.m.

Nonstop2h 21m

Montreal Pierre Elliott Trudeau Intl

Tue 24/6

6:15 a.m.-7:59 a.m.

Nonstop2h 44m

C$ 424

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Thu 5/6

1:29 p.m.-4:44 p.m.

Nonstop2h 15m

Montreal Pierre Elliott Trudeau Intl

Sat 7/6

5:29 p.m.-7:04 p.m.

Nonstop2h 35m

C$ 475

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Tue 1/7

2:25 p.m.-9:20 p.m.

1 stop5h 55m

Montreal Pierre Elliott Trudeau Intl

Fri 4/7

5:00 p.m.-10:21 p.m.

1 stop6h 21m

C$ 488

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Fri 27/6

7:05 a.m.-4:25 p.m.

1 stop8h 20m

Montreal Pierre Elliott Trudeau Intl

Fri 4/7

6:00 a.m.-12:53 p.m.

1 stop7h 53m

C$ 491

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 28/5

9:08 p.m.-1:50 p.m.

2 stops15h 42m

C$ 172

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 28/5

5:58 p.m.-9:29 p.m.

Nonstop2h 31m

C$ 176

ChicagoMontreal

ORD - YUL

ORDYUL

Chicago O'Hare Intl

Wed 28/5

2:16 p.m.-7:26 p.m.

1 stop4h 10m

C$ 183

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/4

Showing 1-10 of 14 results
1
2

Best time to book a flight from O'Hare Intl to Pierre Elliott Trudeau Intl

Have a flexible travel schedule? Discover the best time to fly to Pierre Elliott Trudeau Intl from O'Hare Intl 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from O'Hare Intl to Pierre Elliott Trudeau Intl. Price data was last updated on 25 April 2025.

Booking 45 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport?

Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 314). 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 ORD to YUL?

Find hourly flight availability from O'Hare Intl to Pierre Elliott Trudeau Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 April 2025.

It’s typically best to fly out from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport at noon. Doing so could potentially save you 50% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

Explore weekly flight availability from O'Hare Intl to Pierre Elliott Trudeau 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 29 April 2025.

The most flights from ORD to YUL are scheduled on a Monday (23 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

Rainfall in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montreal Pierre Elliott Trudeau Intl Airport ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Montreal Pierre Elliott Trudeau Intl Airport when rainfall is around 64.0 mm.

Temperature in Pierre Elliott Trudeau Intl by month

Plan your trip to Pierre Elliott Trudeau Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montreal Pierre Elliott Trudeau 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 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Reviews of airlines servicing Pierre Elliott Trudeau Intl

Get insights into the airlines that provide service to Pierre Elliott Trudeau 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 Pierre Elliott Trudeau Intl. Reviews last updated 29 April 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from Chicago to Montreal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,228 reviews
Delta
8.0
Very good
7,929 reviews
Check prices

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Pierre Elliott Trudeau 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 Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport round-trip?

    According to our current data, Air Canada (C$ 370), Lufthansa (C$ 421), and United Airlines (C$ 424) offers the cheapest pricing from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport. These flights start at 36% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at C$ 176. Air Canada flights start at C$ 183 while deals on American Airlines start at C$ 195 one-way.

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

    Before booking your flight to Montreal Pierre Elliott Trudeau Intl Airport from Chicago O'Hare Intl Airport, check out the most reliable airlines to get you to your destination on time: Avianca (91%), Copa Airlines (88%), Air New Zealand( 88%).

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

    Looking for the cheapest flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport? While on average our users pay C$ 425, our data indicates the cheapest price to be C$ 167. The most popular route (Chicago O'Hare Intl - Montreal Pierre Elliott Trudeau Intl), is priced around C$ 337.

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

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

  • How can I find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Pierre Elliott Trudeau Intl.

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

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

    Currently, October is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport (average of C$ 241). Flying from Chicago O'Hare Intl Airport to Montreal Pierre Elliott Trudeau Intl Airport in April is currently the most expensive (average of C$ 314). 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

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Laval
Brossard
Dorval
Longueuil
Cornwall
Drummondville
Sherbrooke
Saint-Jean-sur-Richelieu
Boucherville
Saint-Sauveur
Bromont
Montebello
Trois-Rivières

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.

Alternative routes for O'Hare Intl to Pierre Elliott Trudeau Intl

See prices for flight routes from nearby airports that may be better suited for you.
Midway to Pierre Elliott Trudeau Intl flights

Top airline flying from O'Hare Intl to Pierre Elliott Trudeau Intl

Discover the top airline that operate flights from O'Hare Intl to Pierre Elliott Trudeau 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 29 April 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapestC$ 245AverageC$ 621FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

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 O'Hare Intl to Pierre Elliott Trudeau Intl?

When you search for this flight from O'Hare Intl to Pierre Elliott Trudeau Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from O'Hare Intl to Pierre Elliott Trudeau Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from O'Hare Intl to Pierre Elliott Trudeau Intl with no change fees?

Certainly. Search results for flights to Pierre Elliott Trudeau Intl from O'Hare Intl 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 from O'Hare Intl to Pierre Elliott Trudeau Intl become cheaper?

Yes, Cheapflights offers price alerts on O'Hare Intl to Pierre Elliott Trudeau Intl 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.