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

UAUnited Airlines

Round Trip•Economy

SJU

Luis Muñoz Marín International Airport

San Juan, Puerto Rico

BUF

Buffalo Niagara International Airport

Buffalo, United States

$532 USD

-58%$225 USD

Verified Sep 21, 2025 at 3:37 PM

October 2025

Today

Mon

Tue

Wed

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Sun

29$366 30$333 1$268 2$268 3$456 4$318 5$393 6$421 7$270 8$240 9$240 10$271 11$275 12$405 13$510 14$425 15$274 16$274 17$259 18$274 19$425 20$453 21$264 22$254 23$250 24$225 25$274 26$510 27$445 28$250 29$225 30$225 31$225 1 2

Extremely Rare Availability

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

Tuesday, October 28th, 2025

10 round-trip options

Returning

Sun, Nov 2, 2025•5 Day Trip

$364 USD

Google Flights

Returning

Mon, Nov 3, 2025•6 Day Trip

$635 USD

Google Flights

Returning

Tue, Nov 4, 2025•7 Day Trip

$328 USD

Google Flights

Returning

Wed, Nov 5, 2025•8 Day Trip

$441 USD

Google Flights

Returning

Thu, Nov 6, 2025•9 Day Trip

$450 USD

Google Flights

Returning

Fri, Nov 7, 2025•10 Day Trip

$550 USD

Google Flights

Returning

Sat, Nov 8, 2025•11 Day Trip

$299 USD

Google Flights

Returning

Sun, Nov 9, 2025•12 Day Trip

$305 USD

Google Flights

Returning

Mon, Nov 10, 2025•13 Day Trip

$297 USD

Google Flights

Returning

Tue, Nov 11, 2025•14 Day Trip

$250 USD

Google Flights