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$137+ Cheap flights from Luis Munoz Marin Intl (SJU) to Buffalo (BUF)

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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Find cheap flights from Luis Munoz Marin Intl to Buffalo with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Buffalo are usually found in September or February, booked 16 days in advance, depart on a Tuesday or Monday and return on a Thursday

Cheap flight deals from Luis Munoz Marin Intl to Buffalo

Cheapest flights from Luis Munoz Marin Intl to Buffalo
Explore the most affordable flight options available from Luis Munoz Marin Intl to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This American Airlines deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:00 am
SJU
-
BUF
1 stop13h 08m
American Airlines
Sun 10/1110:44 am
BUF
-
SJU
1 stop12h 57m
American Airlines
Deal found 6/8$218
This SmartFares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:20 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Sat 6/207:00 am
BUF
-
SJU
Nonstop4h 43m
JetBlue
Deal found 6/5$260
This SmartFares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:20 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Wed 6/247:00 am
BUF
-
SJU
Nonstop4h 43m
JetBlue
Deal found 6/5$280
This SmartFares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:29 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Wed 8/57:00 am
BUF
-
SJU
Nonstop4h 33m
JetBlue
Deal found 6/8$310
This American Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/242:22 pm
SJU
-
BUF
1 stop9h 18m
American Airlines
Tue 9/296:00 am
BUF
-
SJU
2 stops14h 47m
American Airlines
Deal found 6/9$312
This American Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:16 am
SJU
-
BUF
2 stops11h 14m
American Airlines
Fri 9/255:18 pm
BUF
-
SJU
2 stops16h 06m
American Airlines
Deal found 6/6$318
This Cheapflightsfares deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:29 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Mon 8/107:00 am
BUF
-
SJU
Nonstop4h 33m
JetBlue
Deal found 6/8$320
This Southwest deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:35 pm
SJU
-
BUF
1 stop8h 05m
Southwest
Mon 9/75:40 am
BUF
-
SJU
1 stop8h 50m
Southwest
Deal found 6/5$323
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:00 am
SJU
-
BUF
1 stop8h 05m
Delta
Sat 9/196:05 am
BUF
-
SJU
1 stop10h 26m
Delta
Deal found 6/4$324
This JetBlue deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:20 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Sat 8/297:00 am
BUF
-
SJU
Nonstop4h 33m
JetBlue
Deal found 6/8$325
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:27 am
SJU
-
BUF
2 stops11h 01m
American Airlines
Mon 10/56:25 am
BUF
-
SJU
1 stop17h 25m
American Airlines
Deal found 6/4$327
This Cheapflightsfares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:20 pm
SJU
-
BUF
Nonstop4h 38m
JetBlue
Mon 6/157:00 am
BUF
-
SJU
Nonstop4h 43m
JetBlue
Deal found 6/5$330

Find flight deals from Luis Munoz Marin Intl to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to Buffalo (BUF). 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 June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$218
(American Airlines)

One-way from

$137
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$352

Good round-trip deal

$435 or less

Good one-way deal

$208 or less
Provider with most accurate pricing for San Juan Luis Munoz Marin Intl-Buffalo flight deals.
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Provider most trusted by Cheapflights users for San Juan Luis Munoz Marin Intl-Buffalo flights.
Search Deals
From San Juan Luis Munoz Marin Intl to Buffalo
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One-way flight from San Juan Luis Munoz Marin Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($49 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 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 San Juan Luis Munoz Marin Intl to Buffalo.
Search Deals
Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Buffalo.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Luis Munoz Marin Intl to Buffalo 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 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 8/5

6:29 pm-11:07 pm

Nonstop4h 38m

Buffalo

Mon 8/10

7:00 am-11:33 am

Nonstop4h 33m

$320

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Mon 9/14

7:00 am-3:05 pm

1 stop8h 05m

Buffalo

Sat 9/19

6:05 am-4:31 pm

1 stop10h 26m

$324

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 8/26

6:20 pm-10:58 pm

Nonstop4h 38m

Buffalo

Sat 8/29

7:00 am-11:33 am

Nonstop4h 33m

$325

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 11/4

7:00 am-3:36 pm

1 stop9h 36m

Buffalo

Wed 11/11

1:15 pm-11:55 pm

1 stop9h 40m

$334

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 10/9

6:30 am-2:10 pm

1 stop7h 40m

Buffalo

Sun 10/11

12:30 pm-10:00 pm

2 stops9h 30m

$337

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 9/24

10:00 am-6:25 pm

2 stops8h 25m

Buffalo

Tue 9/29

12:00 pm-9:05 pm

2 stops9h 05m

$348

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 10/21

6:15 pm-10:50 pm

Nonstop4h 35m

Buffalo

Tue 10/27

3:30 pm-12:43 am

1 stop9h 13m

$362
Cheapest one-way

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 8/12

5:15 am-11:40 am

1 stop6h 25m

$151

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 9/5

4:55 pm-11:44 pm

1 stop6h 49m

$156

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Mon 9/21

4:55 pm-11:44 pm

1 stop6h 49m

$156

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Compare providers for flights from Luis Munoz Marin Intl to Buffalo

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Luis Munoz Marin Intl to Buffalo in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapOairPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy2 starsTrust Score*3 stars
Super.comPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Juan Luis Munoz Marin Intl Airport-Buffalo flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Juan Luis Munoz Marin Intl Airport-Buffalo flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Juan Luis Munoz Marin Intl Airport-Buffalo flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Luis Munoz Marin Intl to Buffalo

Have a flexible travel schedule? Discover the best time to fly to Buffalo from Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport to Buffalo

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo?

Booking 15 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to Buffalo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo?

Currently, September is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo (average of $205). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in December is currently the most expensive (average of $413). 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 SJU to BUF?

Find hourly flight availability from Luis Munoz Marin Intl to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 9, 2026.

When flying from San Juan Luis Munoz Marin Intl Airport to Buffalo, 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 San Juan Luis Munoz Marin Intl Airport to Buffalo?

Reviews of airlines servicing Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated June 9, 2026.
Read reviews from past customers who have flown Southwest,Delta, andAmerican Airlines from San Juan Luis Munoz Marin Intl Airport to Buffalo. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
4,240 reviews
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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.
Delta
7.9
Good
8,394 reviews
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
11,641 reviews
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
2,980 reviews
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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
2,902 reviews
Southwest
7.9
Good
4,240 reviews

Boarding

8.1

Food

7.0

Overall

7.9

Entertainment

7.5

Comfort

8.0

Crew

8.6

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 Luis Munoz Marin Intl to Buffalo. 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 into for flights to Buffalo from San Juan Luis Munoz Marin Intl?

    Buffalo (BUF) is the airport you will fly into if you book a flight from San Juan Luis Munoz Marin Intl to Buffalo. You should not have trouble finding flights to Buffalo from San Juan Luis Munoz Marin Intl; the airport handles an average of 0 inbound flights from San Juan Luis Munoz Marin Intl per day. You should also have plenty of airline options to choose from since 5 airlines have flights to the Buffalo airport from San Juan Luis Munoz Marin Intl. It is only a 8.3 mi journey from Buffalo (BUF) to Buffalo’s city center.

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

    JetBlue and Delta can get you from San Juan Luis Munoz Marin Intl Airport to Buffalo in just under 4h 38m. Your travel time can differ by up to 3h 27m. There are 1848 mi between San Juan Luis Munoz Marin Intl Airport and Buffalo. Both multi-stop and nonstop flights can be found to your destination and back.

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

    Currently priced at $102, Delta will fly you from San Juan Luis Munoz Marin Intl Airport to Buffalo and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and Southwest - these airlines can fly you to your destination from $124 and $195, respectively. These flights start at 67% lower than the current average price 3 months from now.

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

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $102. Southwest flights start at $106 while deals on Frontier start at $106 one-way.

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

    While on average a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo is generally $331, our data shows the cheapest flight currently is $158. When looking at the most popular route, (San Juan Luis Munoz Marin Intl - Buffalo), you can expect to pay $310 for that flight.

  • Can I find deals for flights from Luis Munoz Marin Intl to Buffalo that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Buffalo flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Buffalo?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to Buffalo.

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Buffalo?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to Buffalo 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 San Juan Luis Munoz Marin Intl Airport to Buffalo?

    Currently, September is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo (average of $205). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in December is currently the most expensive (average of $413). 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

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Lockport
Cheektowaga
Amherst
Batavia
Williamsville
Orchard Park
Eden

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Alternative routes for Luis Munoz Marin Intl to Buffalo

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

Top 5 airlines flying from Luis Munoz Marin Intl to Buffalo

Discover the top 5 airlines that operate flights from Luis Munoz Marin Intl to Buffalo. 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 2,558,603 searches. Data last updated June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$102Average$283FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$124Average$231FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$195Average$395FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$215Average$478FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$240Average$369FlexibilityNo cancel feeOn-time62%

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