Montreal (YUL) to San Juan (SJU) cheap flight deal from $245 USD in economy class

UAUnited Airlines

Round Trip•Economy

YUL

Montréal-Pierre Elliott Trudeau International Airport

Montreal, Canada

SJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$590 USD

-58%$245 USD

Verified Sep 20, 2025 at 9:49 PM

October 2025

Today

Mon

Tue

Wed

Thu

Fri

Sat

Sun

29$467 30$361 1$361 2$370 3$507 4$447 5$546 6$546 7$447 8$391 9$631 10$623 11$643 12$545 13$723 14$469 15$414 16$369 17$490 18$465 19$490 20$401 21$263 22$299 23$369 24$401 25$352 26$372 27$350 28$245 29$245 30$369 31$428 1 2

Extremely Rare Availability

1% of dates checked are available within 10% of the lowest price

Monday, October 20th, 2025

10 round-trip options

Returning

Sat, Oct 25, 2025•5 Day Trip

$455 USD

Google Flights

Returning

Sun, Oct 26, 2025•6 Day Trip

$673 USD

Google Flights

Returning

Mon, Oct 27, 2025•7 Day Trip

$608 USD

Google Flights

Returning

Tue, Oct 28, 2025•8 Day Trip

$461 USD

Google Flights

Returning

Wed, Oct 29, 2025•9 Day Trip

$401 USD

Google Flights

Returning

Thu, Oct 30, 2025•10 Day Trip

$401 USD

Google Flights

Returning

Fri, Oct 31, 2025•11 Day Trip

$465 USD

Google Flights

Returning

Sat, Nov 1, 2025•12 Day Trip

$401 USD

Google Flights

Returning

Sun, Nov 2, 2025•13 Day Trip

$555 USD

Google Flights

Returning

Mon, Nov 3, 2025•14 Day Trip

$506 USD

Google Flights