Cheap flights from Buffalo to San Juan Luis Munoz Marin Intl Airport from C$ 157

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 28/10. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
11 Oct — 18 Oct1
1 adult
1 adult, Economy

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 11 September 2025.

Round-trip from

C$ 312

One-way from

C$ 157

Popular in

December

Cheapest in

September

Average price

C$ 416
Delta
  • Delta
  • 23/10-28/10
  • 2 total stops
  • 16h 09m total
  • Buffalo to San Juan
United Airlines
  • United Airlines
  • 14/10
  • 1 total stop
  • 7h 15m total
  • Buffalo to San Juan
High demand for flights, 0% potential price rise
Cheapest flight prices on average. 2% potential price decrease (C$ 19 potential savings vs. average RT price).
Average for round-trip flights in September 2025

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 11 September 2025.

Thu 23/103:57 p.m.BUF - SJU
1 stop7h 59mDelta
Tue 28/107:00 a.m.SJU - BUF
1 stop8h 10mDelta
Deal found 11/9C$ 312
Tue 21/103:57 p.m.BUF - SJU
1 stop7h 59mDelta
Sat 25/107:00 a.m.SJU - BUF
1 stop8h 10mDelta
Deal found 10/9C$ 333
Fri 26/97:00 a.m.BUF - SJU
1 stop9h 20mDelta
Wed 1/107:20 a.m.SJU - BUF
1 stop7h 48mDelta
Deal found 11/9C$ 353
Sat 4/101:05 p.m.BUF - SJU
1 stop10h 40mSouthwest
Mon 6/105:30 p.m.SJU - BUF
1 stop6h 20mSouthwest
Deal found 10/9C$ 362
Fri 26/96:59 p.m.BUF - SJU
1 stop7h 35mFrontier
Sat 27/93:39 a.m.SJU - BUF
1 stop13h 43mFrontier
Deal found 11/9C$ 378
Fri 31/106:32 p.m.BUF - SJU
1 stop8h 16mJetBlue
Wed 5/114:00 p.m.SJU - BUF
1 stop7h 27mJetBlue
Deal found 10/9C$ 387
Thu 2/104:15 p.m.BUF - SJU
1 stop8h 30mSouthwest
Thu 9/105:50 a.m.SJU - BUF
1 stop6h 20mSouthwest
Deal found 11/9C$ 389
Thu 2/105:31 p.m.BUF - SJU
1 stop7h 26mJetBlue
Tue 7/102:25 p.m.SJU - BUF
1 stop7h 35mJetBlue
Deal found 11/9C$ 391
Sat 4/103:55 p.m.BUF - SJU
1 stop8h 52mJetBlue
Sun 5/106:00 a.m.SJU - BUF
1 stop26h 55mJetBlue
Deal found 11/9C$ 392
Fri 17/106:20 a.m.BUF - SJU
1 stop6h 52mDelta
Thu 23/107:18 a.m.SJU - BUF
1 stop7h 52mDelta
Deal found 11/9C$ 394
Mon 24/115:43 p.m.BUF - SJU
1 stop8h 57mJetBlue
Wed 3/124:05 p.m.SJU - BUF
1 stop7h 23mJetBlue
Deal found 10/9C$ 398
Fri 24/107:00 a.m.BUF - SJU
1 stop9h 05mJetBlue
Thu 30/107:00 a.m.SJU - BUF
1 stop8h 39mJetBlue
Deal found 11/9C$ 402

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 11 September 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

Fri 3/10

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

1 stop7h 00m

San Juan Luis Munoz Marin Intl

Sun 5/10

5:45 a.m.-3:50 p.m.

1 stop10h 05m

C$ 312

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 20/10

6:20 a.m.-1:12 p.m.

1 stop6h 52m

San Juan Luis Munoz Marin Intl

Sat 25/10

7:00 a.m.-3:10 p.m.

1 stop8h 10m

C$ 312

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 23/10

4:15 p.m.-12:45 a.m.

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Sun 26/10

5:45 a.m.-3:50 p.m.

1 stop10h 05m

C$ 312

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 26/9

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

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Thu 2/10

1:32 p.m.-12:21 a.m.

1 stop10h 49m

C$ 333

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 29/10

12:06 p.m.-9:59 p.m.

1 stop9h 53m

San Juan Luis Munoz Marin Intl

Mon 3/11

2:06 p.m.-11:56 p.m.

1 stop10h 50m

C$ 333

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 1/3

12:09 p.m.-11:49 p.m.

1 stop10h 40m

San Juan Luis Munoz Marin Intl

Tue 3/3

5:56 p.m.-11:49 p.m.

1 stop6h 53m

C$ 353

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 23/1

7:30 a.m.-3:15 p.m.

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Tue 27/1

6:10 a.m.-12:30 p.m.

1 stop7h 20m

C$ 362

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 1/3

12:45 p.m.-11:47 p.m.

1 stop10h 02m

San Juan Luis Munoz Marin Intl

Tue 3/3

11:59 a.m.-9:31 p.m.

1 stop10h 32m

C$ 389

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 2/10

4:15 p.m.-12:45 a.m.

1 stop8h 30m

San Juan Luis Munoz Marin Intl

Thu 9/10

5:50 a.m.-12:10 p.m.

1 stop6h 20m

C$ 389

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 12/11

7:00 a.m.-5:20 p.m.

1 stop9h 20m

San Juan Luis Munoz Marin Intl

Fri 21/11

7:15 a.m.-3:05 p.m.

1 stop8h 50m

C$ 389

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

Showing 1-10 of 19 results
1
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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 29 August 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 11 September 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.

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 11 September 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.

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
8.0
Very good

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

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

    Southwest and Delta can get you from Buffalo to San Juan Luis Munoz Marin Intl Airport in just under 6h 52m. Your travel time can differ by up to 08m. 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, Delta (C$ 166), Frontier (C$ 236), and JetBlue (C$ 381) offers the cheapest pricing from Buffalo to San Juan Luis Munoz Marin Intl Airport. Users have found that Delta is 70% 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$ 157), United Airlines (C$ 157), and American Airlines (C$ 164).

  • 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.

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 11 September 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 166AverageC$ 624FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
FrontierCheapestC$ 236AverageC$ 382FlexibilityNo cancel feeOn-time62%
Search Frontier flights
JetBlueCheapestC$ 381AverageC$ 585FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
SouthwestCheapestC$ 394AverageC$ 691FlexibilityNo cancel feeOn-time63%
Search Southwest flights
United AirlinesCheapestC$ 522AverageC$ 857FlexibilityNo 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?

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

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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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