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Cheap flights from Buffalo to San Juan Luis Munoz Marin Intl Airport from C$ 145

BUF — SJU
11 Oct — 18 Oct1
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

Sat 24/102:54 p.m. -
1 stop8h 55m
Tue 27/106:00 a.m. -
1 stop8h 58m
Deal found 11/9C$ 285
Fri 2/105:45 p.m. -
1 stop6h 20m
Fri 9/105:35 p.m. -
1 stop6h 10m
Deal found 8/9C$ 291
Sat 17/106:00 a.m. -
1 stop6h 25m
Wed 21/105:50 a.m. -
1 stop9h 30m
Deal found 10/9C$ 334
Tue 13/102:54 p.m. -
1 stop8h 55m
Wed 21/1010:30 a.m. -
1 stop8h 33m
Deal found 11/9C$ 345
Wed 30/96:30 a.m. -
1 stop7h 15m
Sat 3/101:00 a.m. -
2 stops8h 35m
Deal found 8/9C$ 366
Sat 24/105:15 p.m. -
1 stop6h 40m
Sat 31/106:50 a.m. -
1 stop6h 30m
Deal found 8/9C$ 369
Wed 18/118:15 a.m. -
Nonstop4h 45m
Wed 2/1210:43 a.m. -
1 stop8h 49m
Deal found 8/9C$ 375
Sat 24/1010:46 a.m. -
2 stops13h 04m
Sat 31/106:40 a.m. -
2 stops14h 11m
Deal found 8/9C$ 377
Wed 21/108:15 a.m. -
Nonstop4h 39m
Wed 28/106:15 p.m. -
Nonstop4h 42m
Deal found 8/9C$ 381
Sat 7/117:00 a.m. -
1 stop8h 56m
Sat 14/116:10 p.m. -
1 stop6h 47m
Deal found 8/9C$ 393

Find flight deals from Buffalo to Luis Munoz Marin Intl

Round-trip from

C$ 285

One-way from

C$ 145

Popular in

December

Cheapest in

October

Average price

C$ 474

Good round-trip deal

C$ 420 or less
JetBlue
  • JetBlue
  • 24/10-27/10
  • 2 total stops
  • 17h 53m total
  • Buffalo to San Juan
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Southwest
  • Southwest
  • 16/10-31/12
  • 1 total stop
  • 6h 25m total
  • Buffalo to San Juan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price (C$ 120 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2026
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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

Sun 4/10

5:50 a.m.-12:20 p.m.

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 145

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 16/10

5:45 p.m.-12:10 a.m.

1 stop6h 25m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 145

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 26/10

6:55 a.m.-2:19 p.m.

1 stop7h 24m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 159

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 27/10

6:55 a.m.-3:05 p.m.

1 stop8h 10m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 159

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Thu 15/10

5:45 p.m.-12:10 a.m.

1 stop6h 25m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 188

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 8/12

10:48 a.m.-7:27 p.m.

1 stop7h 39m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 190
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 12/10

8:15 a.m.-12:54 p.m.

Nonstop4h 39m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 205

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 7/11

7:00 a.m.-4:56 p.m.

1 stop8h 56m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 211

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 27/10

6:00 a.m.-3:38 p.m.

2 stops9h 38m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 223

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 6/11

5:30 p.m.-1:05 a.m.

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Wed 31/12

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

Nonstop0h 00m

C$ 223

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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$ 463). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 805). 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$ 371 and C$ 568 in October.
The cheapest round-trip price found within the last 5 days was C$ 285 on JetBlue (24 Oct-27 Oct).

Reviews of airlines servicing Luis Munoz Marin Intl

Get a feel of what it's like to fly with Southwest,American Airlines, andJetBlue 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
8.0
Very good
4,194 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
Southwest
8.0
Very good
4,194 reviews
Southwest
8.0
Very good
4,194 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
American Airlines
7.1
Good
12,048 reviews
Southwest
8.0
Very good
4,194 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
JetBlue
7.1
Good
3,040 reviews
Southwest
8.0
Very good
4,194 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful
Frontier
5.6
Fair
2,608 reviews
Southwest
8.0
Very good
4,194 reviews
Check prices

Boarding

8.1

Comfort

8.0

Food

7.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
4.0
Okay

Steven,Sep 2026

OGG - HNL

It was a red eye overnight which I prefer. But this time the seat was SOOOO uncomfortable that sleeping was difficult and painful

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?

    Southwest, JetBlue, and United Airlines can get you from Buffalo to San Juan Luis Munoz Marin Intl Airport in just under 6h 35m. Your travel time can differ by up to 6h 45m. 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$ 202), Frontier (C$ 238), and JetBlue (C$ 295) offers the cheapest pricing from Buffalo to San Juan Luis Munoz Marin Intl Airport. Users have found that American Airlines is 61% 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$ 508, our data shows the cheapest flight currently is C$ 205. When looking at the most popular route, (Buffalo - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 406 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$ 463). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 805). 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$ 202AverageC$ 489FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 238AverageC$ 504FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 295AverageC$ 496FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 301AverageC$ 647FlexibilityNo 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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