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Cheap flights from San Juan to Buffalo (BUF)

SJU — BUF
Oct 24 — Oct 311
Sat 10/24
Sat 10/31
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Buffalo are usually found in February or January, booked 51 days in advance, depart on a Tuesday or Wednesday and return on a Thursday

Find flight deals from San Juan to Buffalo

Popular in

November

Cheapest in

February

Average price

$316
Highest demand for flights based on searches. 12% potential increase in price ($47 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Best time to book a flight from San Juan to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from San Juan with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from San Juan to Buffalo

How far ahead should I book a flight from San Juan to Buffalo?

Booking 49 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to Buffalo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan to Buffalo?

Currently, February is the cheapest month in which you can book a flight from San Juan to Buffalo (average of $256). Flying from San Juan to Buffalo in November is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SJU to BUF?

When flying from San Juan to Buffalo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Buffalo

Read through reviews of airlines operating flights from San Juan to Buffalo, such as Southwest,United Airlines, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
Southwest
8.0
Very good
4,199 reviews
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
United Airlines
7.4
Good
10,233 reviews
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
JetBlue
7.1
Good
3,040 reviews
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
American Airlines
7.0
Good
12,074 reviews
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
Frontier
5.6
Fair
2,578 reviews
Southwest
8.0
Very good
4,199 reviews

Boarding

8.1

Food

7.0

Comfort

8.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful

Related info for your journey

  • What airport do you fly into for flights to Buffalo from San Juan?

    Most people fly into Buffalo (BUF) if they book a flight to Buffalo from San Juan. On average, Buffalo has 0 inbound flights from San Juan per day from 5 airlines. Buffalo is conveniently located just 8.3 mi from Buffalo’s city center.

  • What are the cheapest airlines flying from San Juan to Buffalo round-trip?

    Frontier, at $168, was found to be the cheapest airline from San Juan to Buffalo.Alternate airlines to your destination round-trip include Southwest and United Airlines. Frontier is currently priced 50% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from San Juan to Buffalo one-way?

    $90 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and Southwest, with prices starting from $91 and $106, respectively.

  • What are the cheapest flights from San Juan to Buffalo?

    On average you can expect to pay $170 for a flight from San Juan to Buffalo. The cheapest flight overall is $148 while the most popular route, (San Juan Luis Munoz Marin Intl - Buffalo) is currently priced at $266.

  • Can I find deals for flights from San Juan to Buffalo that include hotel bookings?

    Yes. In addition to deals on San Juan to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Juan to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Juan to Buffalo.

  • Can I find deals for business class flights from San Juan to Buffalo?

    Yes. Cheapflights offers flight deals from San Juan to Buffalo by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Juan to Buffalo?

    Currently, February is the cheapest month in which you can book a flight from San Juan to Buffalo (average of $256). Flying from San Juan to Buffalo in November is currently the most expensive (average of $436). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from San Juan to Buffalo

AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$286FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$195Average$395FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$210Average$409FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$218Average$390FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$239Average$353FlexibilityNo cancel feeOn-time62%

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