Porto (OPO) to Montreal (YUL) cheap flight deal from $426 USD in economy class

TSAir Transat

Round Trip•Economy

OPO

Francisco Sá Carneiro Airport

Porto, Portugal

YUL

Montréal-Pierre Elliott Trudeau International Airport

Montreal, Canada

$743 USD

-43%$426 USD

Verified Sep 20, 2025 at 1:11 PM

October 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29 30$438 1$667 2$1,014 3$1,466 4$1,472 5$914 6$1,108 7 8$526 9$838 10$526 11$1,108 12$596 13$1,472 14 15$737 16$1,214 17$1,207 18$1,472 19 20$1,479 21 22$838 23 24$638 25$750 26$1,326 27 28 29 30$815 31 1 2

Rare Availability

7% of dates checked are available within 10% of the lowest price

Monday, October 6th, 2025

8 round-trip options

Returning

Sat, Oct 11, 2025•5 Day Trip

$1,108 USD

Google Flights

Returning

Sun, Oct 12, 2025•6 Day Trip

$1,115 USD

Google Flights

Returning

Tue, Oct 14, 2025•8 Day Trip

$1,108 USD

Google Flights

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Wed, Oct 15, 2025•9 Day Trip

$1,115 USD

Google Flights

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Thu, Oct 16, 2025•10 Day Trip

$1,108 USD

Google Flights

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Fri, Oct 17, 2025•11 Day Trip

$1,115 USD

Google Flights

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Sat, Oct 18, 2025•12 Day Trip

$1,344 USD

Google Flights

Returning

Sun, Oct 19, 2025•13 Day Trip

$1,115 USD

Google Flights