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$88+ 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 2/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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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 January 14, 2026.

Round-trip from

$207
(Mytrip)

One-way from

$88
(Mytrip)

Popular in

December

Cheapest in

September

Average price

$316
From San Juan to Buffalo
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One-way flight from San Juan to Buffalo
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Highest demand for flights based on searches. 11% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 14, 2026.

This Mytrip deal was found by Cheapflights users on 1/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:25 pm
SJU
-
BUF
1 stop19h 14m
Frontier
Mon 3/99:25 pm
BUF
-
SJU
1 stop12h 32m
Frontier
Deal found 1/13$207
This Delta deal was found by Cheapflights users on 1/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/216:05 pm
SJU
-
BUF
1 stop7h 11m
Delta
Tue 1/277:00 am
BUF
-
SJU
1 stop8h 50m
Delta
Deal found 1/12$212
This Expedia deal was found by Cheapflights users on 1/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/511:59 pm
SJU
-
BUF
1 stop10h 28m
Multiple Airlines
Mon 3/99:25 pm
BUF
-
SJU
1 stop12h 32m
Multiple Airlines
Deal found 1/13$216
This United Airlines deal was found by Cheapflights users on 1/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/247:45 am
SJU
-
BUF
2 stops13h 44m
United Airlines
Wed 1/2811:24 am
BUF
-
SJU
2 stops9h 58m
United Airlines
Deal found 1/12$228
This JetBlue deal was found by Cheapflights users on 1/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1911:59 pm
SJU
-
BUF
1 stop9h 01m
JetBlue
Mon 5/257:20 am
BUF
-
SJU
Nonstop4h 15m
JetBlue
Deal found 1/12$229
This Delta deal was found by Cheapflights users on 1/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/233:55 pm
SJU
-
BUF
1 stop8h 33m
Delta
Sun 1/256:03 am
BUF
-
SJU
1 stop7h 07m
Delta
Deal found 1/13$232
This CheapOair deal was found by Cheapflights users on 1/13. 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 6/28:10 am
SJU
-
BUF
1 stop7h 00m
JetBlue
Sun 6/74:00 pm
BUF
-
SJU
1 stop6h 50m
JetBlue
Deal found 1/13$234
This American Airlines deal was found by Cheapflights users on 1/12. 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.
Wed 2/41:58 pm
SJU
-
BUF
2 stops10h 44m
American Airlines
Sun 2/86:00 am
BUF
-
SJU
1 stop9h 30m
American Airlines
Deal found 1/12$237
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/222:05 am
SJU
-
BUF
2 stops12h 19m
United Airlines
Sun 1/255:23 pm
BUF
-
SJU
2 stops11h 48m
United Airlines
Deal found 1/13$241
This CheapOair deal was found by Cheapflights users on 1/13. 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 4/211:30 am
SJU
-
BUF
1 stop9h 03m
Frontier
Fri 4/1011:42 am
BUF
-
SJU
1 stop27h 17m
Frontier
Deal found 1/13$242
This Frontier deal was found by Cheapflights users on 1/12. 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.
Thu 1/228:00 am
SJU
-
BUF
1 stop12h 04m
Frontier
Thu 1/297:59 pm
BUF
-
SJU
1 stop13h 25m
Frontier
Deal found 1/12$243
This Southwest deal was found by Cheapflights users on 1/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/315:30 am
SJU
-
BUF
1 stop7h 25m
Southwest
Sun 2/14:05 pm
BUF
-
SJU
1 stop7h 00m
Southwest
Deal found 1/12$244

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 January 14, 2026.
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 1/21

6:05 pm-12:16 am

1 stop7h 11m

Buffalo

Tue 1/27

7:00 am-4:50 pm

1 stop8h 50m

$212

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 1/23

7:00 am-2:58 pm

1 stop8h 58m

Buffalo

Sat 1/24

3:43 pm-11:57 pm

1 stop7h 14m

$212

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 1/23

7:45 am-10:31 pm

2 stops15h 46m

Buffalo

Sun 1/25

2:49 pm-10:22 pm

1 stop6h 33m

$232

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 1/29

6:05 pm-12:16 am

1 stop7h 11m

Buffalo

Tue 2/3

7:00 am-4:50 pm

1 stop8h 50m

$232

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 1/23

3:55 pm-11:28 pm

1 stop8h 33m

Buffalo

Sun 1/25

6:03 am-2:10 pm

1 stop7h 07m

$232

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 4/2

11:30 am-8:33 pm

1 stop9h 03m

Buffalo

Fri 4/10

11:42 am-2:59 pm

1 stop27h 17m

$242

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 1/24

6:15 am-1:09 pm

1 stop7h 54m

Buffalo

Sun 1/25

3:38 pm-11:57 pm

1 stop7h 19m

$246

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 1/31

8:00 am-10:07 am

1 stop27h 07m

Buffalo

Sat 2/7

12:29 pm-1:22 pm

1 stop23h 53m

$247

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 1/28

12:10 pm-9:55 pm

2 stops10h 45m

Buffalo

Sat 1/31

4:40 pm-12:10 am

1 stop6h 30m

$278

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Tue 1/27

6:10 am-4:20 pm

2 stops11h 10m

Buffalo

Sun 2/1

4:05 pm-12:05 am

1 stop7h 00m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 22 results
1
2
3

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 January 9, 2026.

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 $118). 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.

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 January 14, 2026.
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
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,257 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,039 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,117 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
JetBlue
7.2
Good
2,884 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,257 reviews

Overall

8.0

Food

7.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 $212, Delta can have you in Buffalo from San Juan in 7h 11m. 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 $80, was found to be the cheapest airline from San Juan to Buffalo.Alternate airlines to your destination round-trip include Frontier and Southwest. Delta is currently priced 76% below the average price you’ll pay for this route.

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

    $79 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 $102 and $106, 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 $118). 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
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for San Juan to Buffalo

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$102Average$306FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$124Average$231FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$211Average$400FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$215Average$390FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$246Average$407FlexibilityNo cancel feeOn-time62%

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