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Cheap flights from Buffalo to San Juan Luis Munoz Marin Intl Airport from C$ 215

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
15 Jul — 22 Jul1
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
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 15 June 2026.

Tue 27/1011:40 a.m.
BUF
-
SJU
2 stops9h 42m
United Airlines
Wed 28/107:30 a.m.
SJU
-
BUF
2 stops10h 29m
United Airlines
Deal found 11/6C$ 423
Sat 5/93:30 p.m.
BUF
-
SJU
1 stop6h 25m
Southwest
Thu 10/95:30 a.m.
SJU
-
BUF
1 stop12h 55m
Southwest
Deal found 15/6C$ 436
Thu 8/1012:25 p.m.
BUF
-
SJU
2 stops8h 30m
Southwest
Wed 14/105:35 a.m.
SJU
-
BUF
1 stop7h 45m
Southwest
Deal found 11/6C$ 450
Wed 9/96:00 a.m.
BUF
-
SJU
1 stop6h 50m
Southwest
Thu 8/106:00 a.m.
SJU
-
BUF
2 stops9h 20m
Southwest
Deal found 12/6C$ 451
Sun 6/96:05 a.m.
BUF
-
SJU
1 stop10h 33m
Delta
Sat 12/93:10 p.m.
SJU
-
BUF
1 stop7h 26m
Delta
Deal found 15/6C$ 456
Sat 11/77:00 a.m.
BUF
-
SJU
Nonstop4h 38m
JetBlue
Wed 15/76:29 p.m.
SJU
-
BUF
Nonstop4h 38m
JetBlue
Deal found 14/6C$ 461
Mon 24/83:55 p.m.
BUF
-
SJU
1 stop6h 55m
Southwest
Fri 28/85:00 a.m.
SJU
-
BUF
2 stops10h 15m
Southwest
Deal found 12/6C$ 471
Mon 3/82:50 p.m.
BUF
-
SJU
2 stops8h 50m
Southwest
Wed 26/81:20 p.m.
SJU
-
BUF
1 stop8h 25m
Southwest
Deal found 10/6C$ 477
Wed 12/83:52 p.m.
BUF
-
SJU
1 stop8h 18m
JetBlue
Sat 22/86:20 p.m.
SJU
-
BUF
Nonstop4h 38m
JetBlue
Deal found 14/6C$ 484

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 15 June 2026.

Round-trip from

C$ 423

One-way from

C$ 215

Popular in

December

Cheapest in

September

Average price

C$ 531

Good round-trip deal

C$ 538 or less
United Airlines
  • United Airlines
  • 27/10-28/10
  • 4 total stops
  • 20h 11m total
  • Buffalo to San Juan
Search Deals
United Airlines
  • United Airlines
  • 10/9
  • 1 total stop
  • 8h 14m total
  • Buffalo to San Juan
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 105 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 629,999 searches. Data last updated 15 June 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 27/10

11:40 a.m.-9:22 p.m.

2 stops9h 42m

San Juan Luis Munoz Marin Intl

Wed 28/10

7:30 a.m.-5:59 p.m.

2 stops10h 29m

C$ 423

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 16/9

7:00 a.m.-8:38 p.m.

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Sat 19/9

7:00 a.m.-9:07 p.m.

2 stops14h 07m

C$ 436

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 27/10

6:00 a.m.-3:51 p.m.

1 stop9h 51m

San Juan Luis Munoz Marin Intl

Wed 28/10

6:15 p.m.-10:53 p.m.

Nonstop4h 38m

C$ 505
Quickest round-trip

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 22/9

6:00 a.m.-1:34 p.m.

1 stop7h 34m

San Juan Luis Munoz Marin Intl

Wed 23/9

6:15 p.m.-10:53 p.m.

Nonstop4h 38m

C$ 520
Cheapest one-way

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 12/9

10:30 a.m.-11:50 p.m.

2 stops13h 20m

C$ 218

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 16/8

5:45 p.m.-12:30 a.m.

1 stop6h 45m

C$ 218

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 11/9

6:55 a.m.-8:38 p.m.

2 stops13h 43m

C$ 218

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 8/7

7:00 a.m.-11:35 a.m.

Nonstop4h 35m

C$ 228
Quickest one-way

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 12/8

7:00 a.m.-11:33 a.m.

Nonstop4h 33m

C$ 228

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 9/9

6:05 a.m.-4:49 p.m.

1 stop10h 44m

C$ 233

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/6

Showing 1-10 of 14 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
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?

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, September is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 429). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 795). 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?

Find hourly flight availability from Buffalo to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 15 June 2026.

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?

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 15 June 2026.
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
7.9
Good
4,237 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
7.9
Good
4,237 reviews
Southwest
7.9
Good
4,237 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
American Airlines
7.1
Good
11,667 reviews
Southwest
7.9
Good
4,237 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
JetBlue
7.1
Good
2,981 reviews
Southwest
7.9
Good
4,237 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Frontier
5.6
Fair
2,883 reviews
Southwest
7.9
Good
4,237 reviews
Check prices

Food

7.0

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

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?

    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 and JetBlue can get you from Buffalo to San Juan Luis Munoz Marin Intl Airport in just under 9h 42m. Your travel time can differ by up to 09m. 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$ 240), and JetBlue (C$ 297) 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$ 583, our data shows the cheapest flight currently is C$ 535. When looking at the most popular route, (Buffalo - San Juan Luis Munoz Marin Intl), you can expect to pay C$ 752 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, September is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 429). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of C$ 795). 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

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Alternative routes for Buffalo to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
Newark to Luis Munoz Marin Intl flights

Top 4 airlines flying from Buffalo to Luis Munoz Marin Intl

Discover the top 4 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 629,999 searches. Data last updated 15 June 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapestC$ 204AverageC$ 494FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FrontierCheapestC$ 240AverageC$ 519FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 297AverageC$ 507FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 314AverageC$ 626FlexibilityNo cancel feeOn-time63%
Search Southwest flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

Can Cheapflights notify me if prices for flights from Buffalo to Luis Munoz Marin Intl become cheaper?

Of course! You can now track prices for flights from Buffalo to Luis Munoz Marin Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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