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Cheap flights from Buffalo to San Juan Luis Munoz Marin Intl Airport from C$ 183

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
4 Aug — 11 Aug1
1 adult

Cheap 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 30 July 2025.

Round-trip from

C$ 283

One-way from

C$ 183

Popular in

December

Cheapest in

September

Average price

C$ 643
United Airlines
  • United Airlines
  • 22/9-26/9
  • 3 total stops
  • 23h 46m total
  • Buffalo to San Juan
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Delta
  • Delta
  • 4/1
  • 1 total stop
  • 9h 08m total
  • Buffalo to San Juan
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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Find 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 30 July 2025.

Mon 22/96:00 a.m.BUF - SJU
2 stops14h 38mUnited Airlines
Fri 26/91:30 p.m.SJU - BUF
1 stop9h 08mUnited Airlines
Deal found 30/7C$ 283
Wed 17/97:00 a.m.BUF - SJU
1 stop9h 20mDelta
Tue 23/97:00 a.m.SJU - BUF
1 stop8h 08mDelta
Deal found 30/7C$ 297
Sat 11/104:00 p.m.BUF - SJU
1 stop7h 25mSouthwest
Sun 19/105:45 a.m.SJU - BUF
1 stop6h 15mSouthwest
Deal found 28/7C$ 331
Sat 8/117:36 p.m.BUF - SJU
1 stop12h 23mFrontier
Mon 17/1110:07 a.m.SJU - BUF
1 stop8h 33mFrontier
Deal found 30/7C$ 342
Tue 5/812:56 p.m.BUF - SJU
1 stop10h 38mJetBlue
Mon 11/81:50 p.m.SJU - BUF
1 stop10h 09mJetBlue
Deal found 29/7C$ 353
Sat 8/1112:53 p.m.BUF - SJU
2 stops9h 54mAmerican Airlines
Mon 17/114:26 p.m.SJU - BUF
1 stop7h 26mAmerican Airlines
Deal found 29/7C$ 383

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 30 July 2025.
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 22/9

6:00 a.m.-8:38 p.m.

2 stops14h 38m

San Juan Luis Munoz Marin Intl

Fri 26/9

1:30 p.m.-10:38 p.m.

1 stop9h 08m

C$ 283

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 17/9

7:00 a.m.-4:20 p.m.

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Tue 23/9

7:00 a.m.-3:08 p.m.

1 stop8h 08m

C$ 297

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 11/10

4:00 p.m.-11:25 p.m.

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Sun 19/10

5:45 a.m.-12:00 p.m.

1 stop6h 15m

C$ 331

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 8/11

7:36 p.m.-8:59 a.m.

1 stop12h 23m

San Juan Luis Munoz Marin Intl

Mon 17/11

10:07 a.m.-5:40 p.m.

1 stop8h 33m

C$ 342

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 8/11

7:02 p.m.-3:49 a.m.

1 stop7h 47m

San Juan Luis Munoz Marin Intl

Mon 17/11

2:22 p.m.-10:06 p.m.

1 stop8h 44m

C$ 354

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 8/11

12:53 p.m.-11:47 p.m.

2 stops9h 54m

San Juan Luis Munoz Marin Intl

Mon 17/11

4:26 p.m.-10:52 p.m.

1 stop7h 26m

C$ 383

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 4/1

4:00 p.m.-2:08 a.m.

1 stop9h 08m

C$ 183

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 3/9

6:10 a.m.-5:25 p.m.

1 stop11h 15m

C$ 219

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 25/10

8:20 a.m.-11:57 p.m.

2 stops15h 37m

C$ 225

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 12/8

9:49 a.m.-5:42 p.m.

1 stop7h 53m

C$ 251

Flights are sorted by cheapest round-trip flights first.

Deals found on 27/7

Showing 1-10 of 11 results
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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
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 25 July 2025.

The best time to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport is 42 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, April is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 254). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of C$ 580). 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 30 July 2025.

One of the essential ways to save on airfare from Buffalo to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 15% on airfare.

What’s the top layover airport for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Share of one-stop round-trip flights from Buffalo to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.

Baltimore (BWI) – chosen by Cheapflights users on 37% of one-stop itineraries from Buffalo to San Juan Luis Munoz Marin Intl Airport on Cheapflights.

What’s the cheapest layover airport for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Average round-trip fare for 1-stop flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Tampa (TPA) is the most affordable 1-stop option, with an average round-trip price of C$ 345.

What’s the fastest layover option from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Shortest average travel time for 1-stop one-way flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Washington, D.C. (IAD) have the shortest average one-way travel time for 1-stop routes: 5h 10m.

Which airport typically offers the quickest layover for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Average layover duration for 1-stop one-way flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Washington, D.C. (IAD) offer the fastest connection on this route, with an average layover time of 1h 21m.

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 30 July 2025.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,913 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews
Check prices

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 5 airlines. Buffalo is conveniently located just 13.4 km from Buffalo’s city centre.

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

    According to our current data, United Airlines (C$ 283), Delta (C$ 297), and Southwest (C$ 331) offers the cheapest pricing from Buffalo to San Juan Luis Munoz Marin Intl Airport. Users have found that United Airlines is 48% cheaper than the other options available to this destination.

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

    The cheapest airlines for a one-way flight from Buffalo to San Juan Luis Munoz Marin Intl Airport are Delta (C$ 183), Southwest (C$ 219), and United Airlines (C$ 225).

  • 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, April is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of C$ 254). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in July is currently the most expensive (average of C$ 580). 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
Luquillo

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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 5 airlines flying from Buffalo to Luis Munoz Marin Intl

Discover the top 5 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 30 July 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 165AverageC$ 625FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 235AverageC$ 374FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 370AverageC$ 599FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 454AverageC$ 741FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 520AverageC$ 853FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

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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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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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