Buffalo

$96+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Apr 4 — Apr 111
We work with more than 300 partners to bring you better travel deals

Find cheap flights from San Juan to Buffalo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 March 5, 2026.

This Expedia deal was found by Cheapflights users on 3/2. 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.
Mon 6/86:20 pm
SJU
-
BUF
Nonstop4h 49m
JetBlue
Mon 6/157:05 am
BUF
-
SJU
Nonstop4h 33m
JetBlue
Deal found 3/2$115
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:35 am
SJU
-
BUF
1 stop6h 25m
Southwest
Mon 4/275:00 am
BUF
-
SJU
1 stop9h 55m
Southwest
Deal found 2/28$192
This Southwest deal was found by Cheapflights users on 3/3. 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.
Fri 5/155:35 am
SJU
-
BUF
1 stop6h 25m
Southwest
Mon 5/184:00 pm
BUF
-
SJU
1 stop7h 40m
Southwest
Deal found 3/3$212
This Travelocity deal was found by Cheapflights users on 3/2. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/286:20 pm
SJU
-
BUF
Nonstop4h 49m
Multiple Airlines
Sat 4/117:31 pm
BUF
-
SJU
1 stop12h 25m
Multiple Airlines
Deal found 3/2$229
This Orbitz deal was found by Cheapflights users on 3/4. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/33:01 am
SJU
-
BUF
1 stop9h 15m
Frontier
Mon 6/811:55 am
BUF
-
SJU
1 stop14h 01m
Frontier
Deal found 3/4$234
This American Airlines deal was found by Cheapflights users on 3/2. 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 4/236:45 am
SJU
-
BUF
1 stop16h 46m
American Airlines
Sat 5/210:44 am
BUF
-
SJU
1 stop11h 21m
American Airlines
Deal found 3/2$236
This American Airlines deal was found by Cheapflights users on 2/28. 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.
Wed 5/63:19 pm
SJU
-
BUF
1 stop8h 00m
American Airlines
Wed 5/135:00 am
BUF
-
SJU
1 stop17h 05m
American Airlines
Deal found 2/28$242
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:35 am
SJU
-
BUF
1 stop6h 25m
Southwest
Fri 4/244:00 pm
BUF
-
SJU
1 stop7h 40m
Southwest
Deal found 2/28$243
This Priceline deal was found by Cheapflights users on 2/28. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/246:30 pm
SJU
-
BUF
Nonstop4h 49m
JetBlue
Mon 4/277:20 am
BUF
-
SJU
Nonstop3h 54m
JetBlue
Deal found 2/28$245
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/122:00 pm
SJU
-
BUF
1 stop7h 45m
Southwest
Tue 5/194:00 pm
BUF
-
SJU
1 stop6h 40m
Southwest
Deal found 2/28$248

Find 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 March 5, 2026.

Round-trip from

$192
(Southwest)

One-way from

$96
(Southwest)

Popular in

December

Cheapest in

September

Average price

$289
From San Juan to Buffalo
One-way flight from San Juan to Buffalo
Highest demand for flights based on searches. 11% potential increase in price ($41 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in March 2026

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 March 5, 2026.
Use the filters below to find and compare flights from San Juan to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 4/24

5:35 am-12:00 pm

1 stop6h 25m

Buffalo

Mon 4/27

5:00 am-2:55 pm

1 stop9h 55m

$192

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 4/24

5:35 am-12:00 pm

1 stop6h 25m

Buffalo

Tue 4/28

4:00 pm-10:40 pm

1 stop6h 40m

$192

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 5/14

4:25 pm-11:20 pm

1 stop6h 55m

Buffalo

Tue 5/19

4:00 pm-10:40 pm

1 stop6h 40m

$192

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 5/15

5:35 am-12:00 pm

1 stop6h 25m

Buffalo

Mon 5/18

4:00 pm-11:40 pm

1 stop7h 40m

$212

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 4/24

6:30 pm-11:19 pm

Nonstop4h 49m

Buffalo

Mon 4/27

7:20 am-11:14 am

Nonstop3h 54m

$245

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 5/9

6:15 am-4:16 pm

1 stop10h 01m

Buffalo

Sat 5/16

3:53 pm-11:35 pm

1 stop7h 42m

$284

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Tue 6/2

5:05 am-2:35 pm

1 stop9h 30m

Buffalo

Fri 6/5

5:55 pm-12:15 am

1 stop6h 20m

$293

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 5/23

6:20 pm-11:09 pm

Nonstop4h 49m

Buffalo

Fri 5/29

7:10 am-11:05 am

Nonstop3h 55m

$320

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 5/6

6:15 pm-11:04 pm

Nonstop4h 49m

Buffalo

Wed 5/13

7:20 am-11:14 am

Nonstop3h 54m

$320

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 5/2

4:25 pm-11:25 pm

1 stop7h 00m

$96

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/3

Showing 1-10 of 18 resultsSorted by cheapest first
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 February 27, 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 March 5, 2026.
Read through reviews of airlines operating flights from San Juan to Buffalo, such as Southwest, Delta, and JetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Food

7.0

Overall

8.0

Crew

8.6

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

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 $192, Southwest can have you in Buffalo from San Juan in 6h 25m. There are 1848 mi between San Juan and Buffalo.

  • 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 75% 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 $102 and $106, respectively.

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

    On average you can expect to pay $324 for a flight from San Juan to Buffalo. The cheapest flight overall is $253 while the most popular route, (San Juan Luis Munoz Marin Intl - Buffalo) is currently priced at $212.

  • 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 March 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$80Average$291FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$124Average$231FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$211Average$395FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$215Average$390FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$239Average$356FlexibilityNo cancel feeOn-time62%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.