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Cheap flights from Buffalo to San Juan Luis Munoz Marin Intl Airport from C$ 166

BUF — SJU
27 Nov — 4 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Buffalo to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest flights from Buffalo to Luis Munoz Marin Intl

Tue 10/116:35 a.m. -
1 stop6h 34m
Wed 11/113:20 p.m. -
1 stop9h 38m
Deal found 27/10C$ 331
Wed 9/127:00 a.m. -
1 stop8h 38m
Fri 11/125:01 a.m. -
1 stop8h 46m
Deal found 23/10C$ 334
Tue 3/116:30 a.m. -
2 stops14h 52m
Tue 10/118:05 a.m. -
1 stop7h 05m
Deal found 27/10C$ 354
Sat 14/1112:08 p.m. -
1 stop7h 40m
Wed 18/117:00 a.m. -
1 stop7h 18m
Deal found 25/10C$ 355
Sat 31/1012:08 p.m. -
1 stop7h 34m
Sat 7/118:00 a.m. -
1 stop9h 34m
Deal found 24/10C$ 363
Fri 27/117:45 a.m. -
Nonstop4h 50m
Fri 4/125:01 a.m. -
1 stop8h 18m
Deal found 26/10C$ 365
Sat 31/106:00 a.m. -
2 stops14h 00m
Tue 10/118:05 a.m. -
1 stop7h 05m
Deal found 25/10C$ 368
Fri 4/129:05 a.m. -
Nonstop4h 53m
Sat 12/125:01 a.m. -
1 stop8h 46m
Deal found 28/10C$ 369
Wed 9/126:00 a.m. -
1 stop7h 40m
Sat 12/122:05 a.m. -
1 stop9h 37m
Deal found 26/10C$ 370
Sun 1/113:05 p.m. -
1 stop9h 00m
Wed 4/116:40 a.m. -
1 stop10h 50m
Deal found 24/10C$ 376

Find flight deals from Buffalo to Luis Munoz Marin Intl

Round-trip from

C$ 331

One-way from

C$ 130

Popular in

December

Cheapest in

October

Average price

C$ 421

Good round-trip deal

C$ 570 or less
Southwest
  • Southwest
  • 5/12-8/12
  • 2 total stops
  • 15h 15m total
  • Buffalo to San Juan
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Frontier
  • Frontier
  • 7/12-31/12
  • 1 total stop
  • 10h 43m total
  • Buffalo to San Juan
Search Deals
Highest demand for flights based on searches. 13% potential increase in price (C$ 118 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals
Price to beat on a round-trip flight from Buffalo to San Juan Luis Munoz Marin Intl.
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Cheapflights Fare Finder

 
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 3/2

5:45 a.m.-1:32 p.m.

1 stop6h 47m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 166

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sun 24/1

3:53 p.m.-12:58 a.m.

1 stop8h 05m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 166

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 9/12

6:10 a.m.-1:54 p.m.

1 stop6h 44m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 166

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 20/1

12:20 p.m.-11:58 p.m.

1 stop10h 38m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 166
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 10/11

6:35 a.m.-2:09 p.m.

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 166

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 3/2

1:39 p.m.-9:45 p.m.

1 stop7h 06m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 180

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Thu 28/1

12:20 p.m.-8:56 p.m.

1 stop7h 36m

San Juan Luis Munoz Marin Intl

Wed 31/12

12:00 a.m.-11:00 p.m.

Nonstop0h 00m

C$ 208

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 9/12

6:00 a.m.-2:40 p.m.

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Sat 12/12

2:05 a.m.-1:17 p.m.

2 stops12h 12m

C$ 331

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sun 8/11

6:00 a.m.-2:40 p.m.

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Thu 12/11

8:05 a.m.-8:36 p.m.

2 stops13h 31m

C$ 331

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 10/11

6:35 a.m.-2:09 p.m.

1 stop6h 34m

San Juan Luis Munoz Marin Intl

Wed 11/11

3:20 p.m.-11:58 p.m.

1 stop9h 38m

C$ 332

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/10

Showing 1-10 of 16 resultsSorted by cheapest first
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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

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?

The best time to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport is 87 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, October is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 421). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 809). 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 BUF to SJU?

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

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

Airfare is below average for this route at the moment.

Buffalo to San Juan Luis Munoz Marin Intl Airport flights typically cost between C$ 438 and C$ 673 in November.
The cheapest round-trip price found within the last 5 days was C$ 331 on Delta (10 Nov-11 Nov).

Reviews of airlines servicing Luis Munoz Marin Intl

Get a feel of what it's like to fly with Southwest,JetBlue, andAmerican Airlines from Buffalo to San Juan Luis Munoz Marin Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,218 reviews
Check prices

Comfort

8.0

Food

7.0

Entertainment

7.4

Overall

7.9

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
Southwest
7.9
Good
4,218 reviews
Southwest
7.9
Good
4,218 reviews
Check prices

Comfort

8.0

Food

7.0

Entertainment

7.4

Overall

7.9

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
JetBlue
7.1
Good
3,075 reviews
Southwest
7.9
Good
4,218 reviews
Check prices

Comfort

8.0

Food

7.0

Entertainment

7.4

Overall

7.9

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
American Airlines
7.0
Good
12,201 reviews
Southwest
7.9
Good
4,218 reviews
Check prices

Comfort

8.0

Food

7.0

Entertainment

7.4

Overall

7.9

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.
Frontier
5.5
Fair
2,514 reviews
Southwest
7.9
Good
4,218 reviews
Check prices

Comfort

8.0

Food

7.0

Entertainment

7.4

Overall

7.9

Boarding

8.1

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Patricia,Oct 2026

DAL - TPA

I love flying southwest, Both flights were packed full full - so not room for all carry one and bags had to be checked but still good flights.

Related info for your journey

  • What airport do you fly from for flights from Buffalo to San Juan Luis Munoz Marin Intl?

    Most people fly from Buffalo (BUF) if they book a flight from Buffalo to San Juan Luis Munoz Marin Intl. On average, Buffalo has 0 outbound flights to San Juan Luis Munoz Marin Intl per day from 4 airlines. Buffalo is conveniently located just 13.4 km from Buffalo’s city centre.

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

    United Airlines, Delta, and JetBlue can get you from Buffalo to San Juan Luis Munoz Marin Intl Airport in just under 6h 34m. Your travel time can differ by up to 1h 06m. The distance between Buffalo and San Juan Luis Munoz Marin Intl Airport is about 2974 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

    According to our current data, American Airlines (C$ 204), Frontier (C$ 241), and JetBlue (C$ 298) offers the cheapest pricing from Buffalo to San Juan Luis Munoz Marin Intl Airport. Users have found that American Airlines is 62% cheaper than the other options available to this destination.

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

    While on average a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport is generally C$ 583, our data shows the cheapest flight currently is C$ 407. When looking at the most popular route, (Buffalo - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 331 for that flight.

  • 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, October is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 421). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 809). 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

Travelling 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
Bayamón

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Buffalo to Luis Munoz Marin Intl

Newark to Luis Munoz Marin Intl flights
John F Kennedy Intl to Luis Munoz Marin Intl flights

Top 4 airlines flying from Buffalo to Luis Munoz Marin Intl

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 204AverageC$ 496FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 241AverageC$ 510FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 298AverageC$ 509FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 304AverageC$ 638FlexibilityNo cancel feeOn-time63%
Search Southwest flights

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How does Cheapflights help users find flights from Buffalo to Luis Munoz Marin Intl?

Cheapflights helps you search for flights from Buffalo to Luis Munoz Marin Intl via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Buffalo to Luis Munoz Marin Intl?

Cheapflights simply makes it quick and affordable to book flights from Buffalo to Luis Munoz Marin Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Buffalo to Luis Munoz Marin Intl with no change fees?

Need flexible booking options for your flight to Luis Munoz Marin Intl from Buffalo? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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