Buffalo (BUF) to San Juan (SJU) cheap flight deal from $225 USD in economy class

WNSouthwest Airlines

Round Trip•Economy

BUF

Buffalo Niagara International Airport

Buffalo, United States

SJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

$477 USD

-53%$225 USD

Verified Sep 21, 2025 at 3:36 PM

October 2025

Today

Mon

Tue

Wed

Thu

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Sat

Sun

29$678 30$318 1$318 2$422 3$422 4$422 5$299 6$502 7$337 8$312 9$385 10$385 11$385 12$446 13$385 14$325 15$305 16$305 17$385 18$261 19$225 20$225 21$225 22$261 23$225 24$225 25$225 26$225 27$225 28$225 29$225 30$225 31$281 1 2

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Wednesday, October 15th, 2025

10 round-trip options

Returning

Mon, Oct 20, 2025•5 Day Trip

$435 USD

Google Flights

Returning

Tue, Oct 21, 2025•6 Day Trip

$361 USD

Google Flights

Returning

Wed, Oct 22, 2025•7 Day Trip

$305 USD

Google Flights

Returning

Thu, Oct 23, 2025•8 Day Trip

$305 USD

Google Flights

Returning

Fri, Oct 24, 2025•9 Day Trip

$305 USD

Google Flights

Returning

Sat, Oct 25, 2025•10 Day Trip

$305 USD

Google Flights

Returning

Sun, Oct 26, 2025•11 Day Trip

$341 USD

Google Flights

Returning

Mon, Oct 27, 2025•12 Day Trip

$385 USD

Google Flights

Returning

Tue, Oct 28, 2025•13 Day Trip

$341 USD

Google Flights

Returning

Wed, Oct 29, 2025•14 Day Trip

$361 USD

Google Flights