Is United Airlines the cheapest airline to fly with from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

With an average price of C$ 493 return, United Airlines is not the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with. Instead, for the lowest price, our data suggests flying with American Airlines, where a return flight costs C$ 359 on average.

Does United Airlines fly direct to Chicago from Montreal Pierre Elliott Trudeau Intl Airport?

Yes, United Airlines does offer direct flights for the route, with around 35 flights per week.

What’s the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines?

On average, the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines is Tuesday, when prices are around C$ 206. The most expensive day is generally Saturday, when the average price is around C$ 504.

C$ 276 Cheap United Airlines Flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

YUL - CHI

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Cheap United Airlines Flight Deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

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Round-trip

One-way

Direct

Recent round-trip United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Thu, 21 May - Mon, 25 May

9:45 a.m. - 11:20 a.m.

YUL

ORD

2h 35mdirect

6:12 p.m. - 9:34 p.m.

ORD

YUL

2h 22mdirect

C$ 283United Airlines

Wed, 22 Apr - Sat, 25 Apr

6:00 a.m. - 12:06 p.m.

YUL

ORD

7h 06m

1 stop

9:00 a.m. - 4:10 p.m.

ORD

YUL

6h 10m

1 stop

C$ 290United Airlines

Wed, 22 Apr - Sat, 25 Apr

9:15 a.m. - 10:53 a.m.

YUL

ORD

2h 38mdirect

6:00 a.m. - 1:09 p.m.

ORD

YUL

6h 09m

1 stop

C$ 335United Airlines

Thu, 2 Apr - Tue, 7 Apr

6:35 p.m. - 11:43 p.m.

YUL

ORD

6h 08m

1 stop

7:00 a.m. - 1:09 p.m.

ORD

YUL

5h 09m

1 stop

C$ 408United Airlines

Thu, 26 Mar - Sun, 29 Mar

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

YUL

ORD

3h 00mdirect

7:00 a.m. - 1:09 p.m.

ORD

YUL

5h 09m

1 stop

C$ 504United Airlines

Thu, 26 Mar - Sun, 29 Mar

1:10 p.m. - 2:55 p.m.

YUL

ORD

2h 45mdirect

3:45 p.m. - 6:55 p.m.

ORD

YUL

2h 10mdirect

C$ 555United Airlines

Thu, 26 Mar - Sun, 29 Mar

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

YUL

ORD

3h 00mdirect

12:50 p.m. - 4:01 p.m.

ORD

YUL

2h 11mdirect

C$ 557United Airlines

Thu, 26 Mar - Sun, 29 Mar

7:00 a.m. - 12:00 p.m.

YUL

ORD

6h 00m

1 stop

7:00 a.m. - 1:09 p.m.

ORD

YUL

5h 09m

1 stop

C$ 606United Airlines

Thu, 26 Mar - Sun, 29 Mar

3:00 p.m. - 9:34 p.m.

YUL

ORD

7h 34m

1 stop

7:00 a.m. - 1:09 p.m.

ORD

YUL

5h 09m

1 stop

C$ 607United Airlines

Fri, 10 Apr - Sun, 12 Apr

1:20 p.m. - 2:55 p.m.

YUL

ORD

2h 35mdirect

8:40 a.m. - 11:51 a.m.

ORD

YUL

2h 11mdirect

C$ 694United Airlines

Useful Info

Low season	November
High season	July
Cheapest flight	C$ 187
Average price round-trip	C$ 335

Best time to beat the crowds (11% less expensive on average)

Most popular time to fly (39% more expensive on average)

Flight from Montreal to Chicago O'Hare Airport

(price for this month)

When to Book Flights with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Average price per month

Flight prices as travel date approaches

Is United Airlines the cheapest airline to fly with from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
With an average price of C$ 493 return, United Airlines is not the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with. Instead, for the lowest price, our data suggests flying with American Airlines, where a return flight costs C$ 359 on average.
What is the cheapest United Airlines flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?
In the last 3 days, the lowest price for a flight with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago was C$ 289 for a return flight and C$ 240 for a one-way flight.
Does United Airlines fly direct to Chicago from Montreal Pierre Elliott Trudeau Intl Airport?
Yes, United Airlines does offer direct flights for the route, with around 35 flights per week.
What’s the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines?
On average, the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines is Tuesday, when prices are around C$ 206. The most expensive day is generally Saturday, when the average price is around C$ 504.
What’s the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines?
The cheapest month for United Airlines flights to Chicago from Montreal Pierre Elliott Trudeau Intl Airport is generally May, where plane tickets cost C$ 214 on average. If possible, try to avoid the most expensive months of July and August, when tickets cost C$ 780 and C$ 863 respectively.

7.4

Good9,299 verified ratings

7.1Entertainment

8.1Crew

6.6Food

7.7Boarding

7.3Comfort

8.0 Very good

Leslie, Feb 2026

SFO

YYZ

Entertainment kept turning itself off. Gave up on watching a movie.

8.0 Very good

Leslie, Feb 2026

BNE

SFO

Good flight. However, when booked flight with United, assumed the layover included by United in San Francisco of 1 hr and 40 minutes was sufficient . Not so and would recommend at least 2 hours or more. Needed to go through US immigration (very long lineups), then pick up bags, take all the way to another terminal, running because we did not have sufficient time. We made the flight because they held the door for us but luggage didn’t follow.

2.0 Poor

Verified traveller, Feb 2026

MNL

GUM

Staff are not helpful, our flight was cancelled due to aircraft problem

10.0 Wonderful

Ray, Feb 2026

SFO

PHL

Everything was great.

10.0 Wonderful

Verified traveller, Feb 2026

JAC

DEN

Clean plane. Great FA's!

8.0 Very good

Verified traveller, Feb 2026

NRT

KUL

Provide some Asian movies.....Chinese or Taiwan or some of the International films winners and better documentaries

6.0 Okay

Verified traveller, Feb 2026

HNL

NRT

Both the WIFI and entertainment did not work for 2.5h

2.0 Poor

Saachi, Feb 2026

IAH

NRT

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

10.0 Wonderful

Srinivas, Feb 2026

BOS

IAH

Very old flight - time to retire it for newer airplanes

2.0 Poor

Melanie, Feb 2026

BOS

EWR

2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight

Everything you need to know for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

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C$ 276 Find Cheap United Airlines Flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Search hundreds of travel sites at once for deals on United Airlines flights from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Cheap United Airlines Flight Deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Recent round-trip United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Recent one-way United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Recent direct United Airlines flight deals from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

Good to know

When to Book Flights with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

FAQs for flying to Chicago with United Airlines

Is United Airlines the cheapest airline to fly with from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

With an average price of C$ 493 return, United Airlines is not the cheapest airline to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with. Instead, for the lowest price, our data suggests flying with American Airlines, where a return flight costs C$ 359 on average.

What is the cheapest United Airlines flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago?

In the last 3 days, the lowest price for a flight with United Airlines from Montreal Pierre Elliott Trudeau Intl Airport to Chicago was C$ 289 for a return flight and C$ 240 for a one-way flight.

Does United Airlines fly direct to Chicago from Montreal Pierre Elliott Trudeau Intl Airport?

Yes, United Airlines does offer direct flights for the route, with around 35 flights per week.

What’s the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines?

On average, the cheapest day of the week to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines is Tuesday, when prices are around C$ 206. The most expensive day is generally Saturday, when the average price is around C$ 504.

What’s the cheapest month to fly from Montreal Pierre Elliott Trudeau Intl Airport to Chicago with United Airlines?

The cheapest month for United Airlines flights to Chicago from Montreal Pierre Elliott Trudeau Intl Airport is generally May, where plane tickets cost C$ 214 on average. If possible, try to avoid the most expensive months of July and August, when tickets cost C$ 780 and C$ 863 respectively.

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Everything you need to know for your flight from Montreal Pierre Elliott Trudeau Intl Airport to Chicago

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