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Luis Munoz Marin Intl

$95+ Cheap flights from Buffalo (BUF) to Luis Munoz Marin Intl (SJU)

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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
Mar 14 — Mar 211
Sat 3/14
Sat 3/21
1 adult, Economy
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Find cheap flights from Buffalo to Luis Munoz Marin Intl 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

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Cheapflights Tip: The best prices from Buffalo to San Juan Luis Munoz Marin Intl are usually found in September or May, booked 44 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Buffalo to Luis Munoz Marin Intl

Cheapest flights from Buffalo to Luis Munoz Marin Intl
Explore the most affordable flight options available from Buffalo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 12, 2026.

This Travelocity deal was found by Cheapflights users on 2/10. 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.
Sun 3/112:04 pm
BUF
-
SJU
1 stop13h 21m
Frontier
Fri 3/63:58 am
SJU
-
BUF
1 stop28h 51m
Frontier
Deal found 2/10$206
This CheapOair deal was found by Cheapflights users on 2/8. 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.
Mon 2/2311:17 am
BUF
-
SJU
1 stop14h 36m
Multiple Airlines
Thu 2/2611:59 pm
SJU
-
BUF
1 stop10h 36m
Multiple Airlines
Deal found 2/8$207
This Priceline deal was found by Cheapflights users on 2/9. 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.
Sun 2/223:00 pm
BUF
-
SJU
1 stop7h 58m
Multiple Airlines
Thu 2/267:09 pm
SJU
-
BUF
1 stop22h 01m
Multiple Airlines
Deal found 2/9$208
This CheapOair deal was found by Cheapflights users on 2/11. 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.
Mon 5/411:25 am
BUF
-
SJU
1 stop11h 23m
Frontier
Fri 5/86:30 am
SJU
-
BUF
1 stop28h 19m
Frontier
Deal found 2/11$211
This Delta deal was found by Cheapflights users on 2/9. 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.
Tue 3/312:05 pm
BUF
-
SJU
1 stop10h 53m
Delta
Tue 3/107:00 am
SJU
-
BUF
1 stop8h 14m
Delta
Deal found 2/9$212
This Expedia deal was found by Cheapflights users on 2/9. 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 2/2311:17 am
BUF
-
SJU
1 stop14h 36m
Frontier
Sat 2/285:25 pm
SJU
-
BUF
1 stop17h 27m
Frontier
Deal found 2/9$213
This Justfly.com deal was found by Cheapflights users on 2/7. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/214:37 pm
BUF
-
SJU
1 stop19h 50m
Frontier
Fri 2/277:09 pm
SJU
-
BUF
1 stop23h 36m
Frontier
Deal found 2/7$214
This Priceline deal was found by Cheapflights users on 2/8. 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.
Wed 2/257:35 pm
BUF
-
SJU
1 stop7h 16m
Multiple Airlines
Fri 3/63:58 am
SJU
-
BUF
1 stop7h 51m
Multiple Airlines
Deal found 2/8$216
This CheapOair deal was found by Cheapflights users on 2/10. 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.
Mon 5/411:25 am
BUF
-
SJU
1 stop22h 29m
Frontier
Wed 5/133:19 pm
SJU
-
BUF
1 stop27h 54m
Frontier
Deal found 2/10$219
This Orbitz deal was found by Cheapflights users on 2/9. 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.
Sat 2/287:30 pm
BUF
-
SJU
1 stop7h 41m
Multiple Airlines
Sat 3/75:55 pm
SJU
-
BUF
1 stop14h 54m
Multiple Airlines
Deal found 2/9$221
This United Airlines deal was found by Cheapflights users on 2/10. 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.
Mon 2/237:00 am
BUF
-
SJU
1 stop7h 40m
United Airlines
Wed 2/252:05 am
SJU
-
BUF
2 stops12h 07m
United Airlines
Deal found 2/10$222
This KAYAK deal was found by Cheapflights users on 2/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/197:39 pm
BUF
-
SJU
1 stop6h 28m
JetBlue
Thu 5/283:00 pm
SJU
-
BUF
1 stop8h 55m
JetBlue
Deal found 2/10$223

Find flight deals from Buffalo to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Luis Munoz Marin Intl (SJU). 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 February 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$206
(Travelocity)

One-way from

$95
(Super.com)

Popular in

December

Cheapest in

September

Average price

$391

Good round-trip deal

$333 or less
Provider with most accurate pricing for Buffalo-San Juan Luis Munoz Marin Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Buffalo-San Juan Luis Munoz Marin Intl flights.
Search Deals
From Buffalo to San Juan Luis Munoz Marin Intl
Search Deals
One-way flight from Buffalo to San Juan Luis Munoz Marin Intl
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Buffalo to San Juan Luis Munoz Marin Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Buffalo to Luis Munoz Marin Intl 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 February 12, 2026.
Use the filters below to find and compare flights from Buffalo to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Buffalo

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 3/2

3:39 pm-11:56 pm

1 stop7h 17m

San Juan Luis Munoz Marin Intl

Thu 3/5

6:02 pm-12:14 am

1 stop7h 12m

$212

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 5/6

6:05 am-1:10 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Wed 5/13

5:05 am-2:35 pm

1 stop9h 30m

$228

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 2/25

6:07 am-9:26 pm

2 stops14h 19m

San Juan Luis Munoz Marin Intl

Thu 3/5

2:05 am-9:48 am

1 stop8h 43m

$230

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 5/2

10:44 am-8:51 pm

2 stops10h 07m

San Juan Luis Munoz Marin Intl

Tue 5/5

7:25 am-6:03 pm

1 stop10h 38m

$242

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 5/1

11:25 am-10:48 pm

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Tue 5/5

12:00 pm-9:25 pm

1 stop9h 25m

$242

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 4/12

4:43 pm-12:05 am

1 stop7h 22m

San Juan Luis Munoz Marin Intl

Mon 4/20

6:15 pm-11:04 pm

Nonstop4h 49m

$244

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 5/17

11:25 am-10:48 pm

1 stop11h 23m

San Juan Luis Munoz Marin Intl

Sun 5/24

8:10 am-6:44 pm

1 stop10h 34m

$248

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 5/8

4:00 pm-11:40 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Wed 5/13

5:05 am-2:35 pm

1 stop9h 30m

$256

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 5/3

2:55 pm-12:05 am

1 stop9h 10m

San Juan Luis Munoz Marin Intl

Wed 5/13

5:35 am-2:35 pm

2 stops9h 00m

$256

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 3/16

3:55 pm-12:25 am

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Wed 3/18

5:15 am-4:00 pm

1 stop10h 45m

$256

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/11

Showing 1-10 of 22 results
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2
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Compare providers for flights from Buffalo to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Luis Munoz Marin Intl in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
BudgetAirPrice Accuracy1 starTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Buffalo-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Buffalo-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Buffalo to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Buffalo 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 Buffalo to San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Buffalo to Luis Munoz Marin Intl. Price data was last updated on February 6, 2026.

The best time to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport is 44 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of $138). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $250). 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.

How much does it cost to fly round-trip from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated February 12, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and American Airlines from Buffalo to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
4,280 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
8,181 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
11,271 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
2,895 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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
3,052 reviews
Southwest
8.0
Very good
4,280 reviews

Entertainment

7.5

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

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 Buffalo to Luis Munoz Marin Intl. 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 from for flights from Buffalo to San Juan Luis Munoz Marin Intl?

    Buffalo (BUF) is the airport you will fly out of if you book a flight from Buffalo to San Juan Luis Munoz Marin Intl. You should not have trouble finding flights to San Juan Luis Munoz Marin Intl from Buffalo; the airport handles an average of 0 outbound flights to San Juan Luis Munoz Marin Intl per day. You should also have plenty of airline options to choose from since 6 airlines have flights from the Buffalo airport to San Juan Luis Munoz Marin Intl. It is only a 8.3 mi journey to Buffalo (BUF) from Buffalo’s city center.

  • How long is the flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?

    Airlines like Delta, Southwest, and United Airlines fly from Buffalo to San Juan Luis Munoz Marin Intl Airport in about 7h 05m. The time it takes to get you to your destination can typically vary by up to 7h 14m. Airlines will cover a distance of 1848 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Buffalo to San Juan Luis Munoz Marin Intl Airport round-trip?

    According to our current data, Delta ($126), Frontier ($129), and JetBlue ($192) offers the cheapest pricing from Buffalo to San Juan Luis Munoz Marin Intl Airport. Delta is 66% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Buffalo to San Juan Luis Munoz Marin Intl Airport one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $102. Users have also found prices from $102 and $112 on Southwest and United Airlines, respectively.

  • What are the cheapest flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?

    The cheapest flight price from Buffalo to San Juan Luis Munoz Marin Intl Airport is $290. On average you can expect to pay $475. The most popular route, (Buffalo - San Juan Luis Munoz Marin Intl), can usually be booked for $207.

  • Where are the most common layover locations when flying from Buffalo to San Juan Luis Munoz Marin Intl Airport?

    The most popular layover on flights from Buffalo to San Juan Luis Munoz Marin Intl Airport is New York.

  • What are some popular things to do or see while on a layover in New York?

    The majority of New York visitors spend their time at Times Square, New York City Center, and Madison Square Garden. Times Square, New York City Center, and Madison Square Garden are located about 13.6 mi, 13.6 mi, and 13.6 mi, respectively from New York John F Kennedy Intl. Those landing in New York looking to spend some time exploring during their layover can rent a car for about $61 per day.

  • Where are the least popular layover locations for Buffalo to San Juan Luis Munoz Marin Intl Airport flights?

    Buffalo to San Juan Luis Munoz Marin Intl Airport flights have a layover in Orlando the least frequently.

  • Can I find deals for flights from Buffalo to Luis Munoz Marin Intl that include hotel bookings?

    Yes. In addition to deals on Buffalo to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Buffalo to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Buffalo to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Buffalo to Luis Munoz Marin Intl 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 Buffalo to San Juan Luis Munoz Marin Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of $138). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $250). 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 San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Fajardo
Dorado
Luquillo
Rio Grande
Humacao
Bayamón

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Buffalo to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Buffalo to Luis Munoz Marin Intl. 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 February 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$126Average$298FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$129Average$276FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$192Average$392FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$225Average$478FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$231Average$398FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$239Average$418FlexibilityNo cancel feeOn-time69%

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