Montreal (YUL) to Chicago (ORD) flight deal from $342 USD in business class

AAAmerican Airlines

Round Trip•Business Class

YUL

Montréal-Pierre Elliott Trudeau International Airport

Montreal, Canada

ORD

O'Hare International Airport

Chicago, United States

$567 USD

-40%$342 USD

Verified Nov 30, 2025 at 8:05 AM

December 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

1$936 2$698 3$698 4$698 5$698 6$698 7$514 8$463 9$458 10$458 11$458 12$569 13$640 14$676 15$580 16$580 17$625 18$611 19$642 20$754 21$785 22$600 23$696 24$696 25$631 26$558 27$625 28$652 29$652 30$855 31$652 1$785 2$935 3$1,352 4$855

Extremely Rare Availability

3% of dates checked are available within 10% of the lowest price

Thursday, December 4th, 2025

10 round-trip options

Returning

Tue, Dec 9, 2025•5 Day Trip

$758 USD

Google Flights

Returning

Wed, Dec 10, 2025•6 Day Trip

$764 USD

Google Flights

Returning

Thu, Dec 11, 2025•7 Day Trip

$809 USD

Google Flights

Returning

Fri, Dec 12, 2025•8 Day Trip

$758 USD

Google Flights

Returning

Sat, Dec 13, 2025•9 Day Trip

$758 USD

Google Flights

Returning

Sun, Dec 14, 2025•10 Day Trip

$874 USD

Google Flights

Returning

Mon, Dec 15, 2025•11 Day Trip

$698 USD

Google Flights

Returning

Tue, Dec 16, 2025•12 Day Trip

$698 USD

Google Flights

Returning

Wed, Dec 17, 2025•13 Day Trip

$809 USD

Google Flights

Returning

Thu, Dec 18, 2025•14 Day Trip

$968 USD

Google Flights