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$87+ Cheap flights from San Juan to Buffalo (BUF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Dec 30 — Jan 61
Tue 12/30
Tue 1/6
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Buffalo are usually found in September or February, booked 71 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Find flight deals from San Juan to Buffalo

Cheapest flights from San Juan to Buffalo
Explore the most affordable flight options available from San Juan to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 30, 2025.

This CheapOair deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:00 amSJU - BUF
1 stop10h 00mFrontier
Sun 12/144:55 pmBUF - SJU
1 stop20h 59mFrontier
Deal found 11/28$239
This Kiwi.com deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:09 pmSJU - BUF
1 stop19h 42mMultiple Airlines
Sun 12/143:18 pmBUF - SJU
2 stops20h 14mMultiple Airlines
Deal found 11/28$260
This Priceline deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:55 amSJU - BUF
1 stop11h 20mFrontier
Mon 12/153:18 pmBUF - SJU
1 stop10h 32mFrontier
Deal found 11/29$264
This Kiwi.com deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/53:55 amSJU - BUF
1 stop11h 20mMultiple Airlines
Mon 12/1511:40 amBUF - SJU
2 stops11h 36mMultiple Airlines
Deal found 11/29$298
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:55 amSJU - BUF
1 stop8h 56mFrontier
Sun 12/74:55 pmBUF - SJU
1 stop20h 59mFrontier
Deal found 11/29$303
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:55 pmSJU - BUF
1 stop14h 40mJetBlue
Wed 1/77:00 amBUF - SJU
1 stop9h 54mJetBlue
Deal found 11/29$327
This CheapOair deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:30 amSJU - BUF
1 stop10h 19mFrontier
Sun 1/46:32 pmBUF - SJU
1 stop27h 43mFrontier
Deal found 11/29$328
This American Airlines deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1112:49 pmSJU - BUF
2 stops11h 05mAmerican Airlines
Sun 12/1411:39 amBUF - SJU
1 stop11h 13mAmerican Airlines
Deal found 11/28$349
This Kiwi.com deal was found by Cheapflights users on 11/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/175:00 pmSJU - BUF
1 stop21h 12mMultiple Airlines
Sat 1/39:28 amBUF - SJU
2 stops27h 31mMultiple Airlines
Deal found 11/29$350
This Kiwi.com deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:30 amSJU - BUF
1 stop10h 15mFrontier
Sat 12/207:05 pmBUF - SJU
2 stops30h 34mFrontier
Deal found 11/28$360
This Frontier deal was found by Cheapflights users on 11/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:55 amSJU - BUF
1 stop9h 57mFrontier
Sun 1/47:58 pmBUF - SJU
1 stop12h 00mFrontier
Deal found 11/28$364

Cheap flight deals from San Juan to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 30, 2025.

Round-trip from

$180
(Priceline)

One-way from

$87
(Super.com)

Popular in

December

Cheapest in

September

Average price

$409
From San Juan to Buffalo
Search Deals
One-way flight from San Juan to Buffalo
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 30, 2025.
Use the filters below to find and compare flights from San Juan to Buffalo that are best for you.

Fly from

San Juan

Fly to

Buffalo

Route

Depart

Return

Price

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/25

3:55 am-8:13 pm

1 stop17h 18m

Buffalo

Mon 3/2

9:57 am-9:55 am

1 stop22h 58m

$180

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/4

7:30 am-5:54 pm

1 stop11h 24m

Buffalo

Sun 2/8

6:00 am-5:17 pm

1 stop10h 17m

$205

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 1/30

7:00 am-2:58 pm

1 stop8h 58m

Buffalo

Sat 1/31

3:43 pm-11:57 pm

1 stop7h 14m

$205

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 2/27

11:59 pm-9:28 am

1 stop10h 29m

Buffalo

Mon 3/2

7:30 pm-3:50 am

1 stop7h 20m

$212

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 2/26

3:55 am-8:13 pm

1 stop17h 18m

Buffalo

Mon 3/2

9:57 am-9:55 am

1 stop22h 58m

$215

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 2/27

6:30 am-2:10 pm

1 stop8h 40m

Buffalo

Tue 3/3

1:20 pm-12:35 am

2 stops10h 15m

$239

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 2/26

6:00 am-2:10 pm

2 stops9h 10m

Buffalo

Tue 3/3

1:20 pm-12:35 am

2 stops10h 15m

$269

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 2/27

2:29 am-11:52 am

2 stops34h 23m

Buffalo

Tue 3/3

6:08 pm-2:50 am

1 stop7h 42m

$270

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/25

2:05 am-1:17 pm

2 stops12h 12m

Buffalo

Tue 3/3

7:00 am-3:40 pm

1 stop7h 40m

$290

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 2/28

5:35 am-12:40 pm

1 stop8h 05m

Buffalo

Tue 3/3

1:20 pm-12:35 am

2 stops10h 15m

$290

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

Showing 1-10 of 19 results
1
2

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Buffalo. Price data was last updated on November 21, 2025.

Booking 71 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, September is the cheapest month in which you can book a flight from San Juan to Buffalo (average of $117). Flying from San Juan to Buffalo in October is currently the most expensive (average of $225). 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?

Find hourly flight availability from San Juan to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 30, 2025.

When flying from San Juan to Buffalo, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 53% versus a flight in the morning.

What is the cheapest day to fly from San Juan to Buffalo?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Buffalo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Buffalo flight should consider departing on Saturday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated November 30, 2025.
Read through reviews of airlines operating flights from San Juan to Buffalo, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,010 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
JetBlue
7.2
Good
2,904 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Frontier
5.8
Fair
3,098 reviews
Southwest
8.0
Very good
4,250 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Comfort

8.0

Overall

8.0

Food

7.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

Related info for your journey

Find useful and relevant information for your journey from San Juan to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • How long is the flight from San Juan to Buffalo?

    For as low as $205, Frontier can have you in Buffalo from San Juan in 11h 24m. There are 1848 mi between San Juan and Buffalo. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    Delta, at $102, was found to be the cheapest airline from San Juan to Buffalo.Alternate airlines to your destination round-trip include Frontier and American Airlines. Delta is currently priced 70% 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 United Airlines and Southwest, with prices starting from $98 and $98, respectively.

  • 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, September is the cheapest month in which you can book a flight from San Juan to Buffalo (average of $117). Flying from San Juan to Buffalo in October is currently the most expensive (average of $225). 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
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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Alternative routes for San Juan to Buffalo

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Top 5 airlines flying from San Juan to Buffalo

Discover the top 5 airlines that operate flights from San Juan to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$102Average$306FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$129Average$172FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$215Average$439FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$261Average$498FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$264Average$437FlexibilityNo cancel feeOn-time62%

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