LHR to YUL from $540 in economy

ACAir Canada

Round Trip•Economy

LHR

London Heathrow Airport

London Heathrow, United Kingdom

YUL

Montréal-Pierre Elliott Trudeau International Airport

Montreal, Canada

$610 USD

-11%$540 USD

Verified 19 days ago

December 2026

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

30$540 1$540 2$540 3$540 4$540 5$540 6$548 7$540 8$577 9$540 10$540 11$540 12$542 13$540 14$540 15$540 16$586 17$542 18$727 19$735 20$727 21$727 22$727 23$727 24$577 25$577 26$577 27$577 28$577 29$577 30$577 31$577 1$577 2$682 3$759

Great Availability

75% of dates checked are available within 10% of the lowest price

Tuesday, December 15th, 2026

7 round-trip options

Returning

Mon, Dec 21, 2026•6 Day Trip

$680 USD

Google Flights

Returning

Tue, Dec 22, 2026•7 Day Trip

$680 USD

Google Flights

Returning

Thu, Dec 24, 2026•9 Day Trip

$548 USD

Google Flights

Returning

Fri, Dec 25, 2026•10 Day Trip

$540 USD

Google Flights

Returning

Sat, Dec 26, 2026•11 Day Trip

$540 USD

Google Flights

Returning

Mon, Dec 28, 2026•13 Day Trip

$540 USD

Google Flights

Returning

Tue, Dec 29, 2026•14 Day Trip

$540 USD

Google Flights

London Heathrow (LHR) to Montreal (YUL) flight deal in economy from $540

London Heathrow Airport

Montréal-Pierre Elliott Trudeau International Airport

December 2026

Tuesday, December 15th, 2026