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$113+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Buffalo are usually found in September or October, booked 71 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

Find 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 October 27, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/157:45 amSJU - BUF
2 stops16h 13mUnited Airlines
Tue 11/1810:50 amBUF - SJU
1 stop9h 10mUnited Airlines
Deal found 10/27$240
This Southwest deal was found by Cheapflights users on 10/25. 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.
Fri 11/75:55 pmSJU - BUF
1 stop6h 45mSouthwest
Sun 11/93:40 pmBUF - SJU
1 stop8h 45mSouthwest
Deal found 10/25$255
This American Airlines deal was found by Cheapflights users on 10/26. 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 12/42:05 pmSJU - BUF
2 stops10h 39mAmerican Airlines
Sun 12/76:00 amBUF - SJU
1 stop15h 05mAmerican Airlines
Deal found 10/26$264
This Delta deal was found by Cheapflights users on 10/27. 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.
Thu 11/61:46 pmSJU - BUF
1 stop10h 53mDelta
Mon 11/106:10 amBUF - SJU
1 stop10h 16mDelta
Deal found 10/27$268
This American Airlines deal was found by Cheapflights users on 10/25. 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.
Sat 12/68:18 amSJU - BUF
2 stops9h 13mAmerican Airlines
Tue 12/97:04 amBUF - SJU
1 stop14h 05mAmerican Airlines
Deal found 10/25$281
This Expedia deal was found by Cheapflights users on 10/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:31 amSJU - BUF
1 stop8h 18mJetBlue
Thu 11/1310:08 amBUF - SJU
1 stop7h 12mJetBlue
Deal found 10/25$282
This Delta deal was found by Cheapflights users on 10/27. 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.
Thu 11/131:57 pmSJU - BUF
1 stop10h 53mDelta
Tue 11/187:00 amBUF - SJU
1 stop9h 20mDelta
Deal found 10/27$284
This United Airlines deal was found by Cheapflights users on 10/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:30 amSJU - BUF
1 stop6h 50mUnited Airlines
Wed 11/1211:48 amBUF - SJU
2 stops9h 34mUnited Airlines
Deal found 10/26$285
This Frontier deal was found by Cheapflights users on 10/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2210:28 pmSJU - BUF
1 stop13h 57mFrontier
Sat 12/63:18 pmBUF - SJU
2 stops18h 29mFrontier
Deal found 10/25$296
This CheapOair deal was found by Cheapflights users on 10/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:05 amSJU - BUF
1 stop8h 34mJetBlue
Mon 11/248:50 pmBUF - SJU
1 stop25h 04mJetBlue
Deal found 10/26$307

Cheap 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$225
(Southwest)

One-way from

$113
(Delta)

Popular in

December

Cheapest in

September

Average price

$291
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. 11% potential increase in price ($43 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 October 2025
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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 October 27, 2025.
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

Luis Munoz Marin Intl

Fly to

Buffalo

Route

Depart

Return

Price

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 12/4

3:55 pm-10:05 pm

1 stop7h 10m

Buffalo

Sun 12/7

5:45 pm-1:25 am

1 stop6h 40m

$240

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/4

7:00 am-3:34 pm

1 stop9h 34m

Buffalo

Sun 2/8

7:00 am-8:50 pm

1 stop12h 50m

$241

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 12/6

8:20 am-4:20 pm

1 stop9h 00m

Buffalo

Tue 12/9

4:50 pm-12:35 am

1 stop6h 45m

$255

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 11/7

5:55 pm-11:40 pm

1 stop6h 45m

Buffalo

Sun 11/9

3:40 pm-1:25 am

1 stop8h 45m

$255

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/18

6:10 am-12:30 pm

1 stop7h 20m

Buffalo

Sun 2/22

2:40 pm-1:05 am

1 stop9h 25m

$262

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 2/26

5:30 am-2:10 pm

2 stops9h 40m

Buffalo

Mon 3/2

7:05 am-4:10 pm

1 stop8h 05m

$262

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 2/25

1:59 am-8:29 am

1 stop7h 30m

Buffalo

Mon 3/2

12:45 pm-9:35 pm

1 stop7h 50m

$264

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 12/4

2:05 pm-11:44 pm

2 stops10h 39m

Buffalo

Sun 12/7

6:00 am-10:05 pm

1 stop15h 05m

$264

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 11/6

8:30 am-2:20 pm

1 stop6h 50m

Buffalo

Mon 11/10

6:00 am-9:00 pm

2 stops14h 00m

$268

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 2/26

1:59 am-8:29 am

1 stop7h 30m

Buffalo

Mon 3/2

12:45 pm-11:47 pm

1 stop10h 02m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Showing 1-10 of 16 results
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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Juan Luis Munoz Marin Intl Airport-Buffalo flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Buffalo. Price data was last updated on October 24, 2025.

Booking 71 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 $117). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in October is currently the most expensive (average of $224). 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 October 27, 2025.

When flying from San Juan Luis Munoz Marin Intl Airport to Buffalo, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 21% versus a flight in the afternoon.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Buffalo?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Buffalo. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport to Buffalo flight should consider departing on Sunday afternoons when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 October 27, 2025.
Read reviews from past customers who have flown Southwest, Delta, and American 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
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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
Delta
7.9
Good
7,996 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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
American Airlines
7.2
Good
11,031 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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
JetBlue
7.2
Good
2,906 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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
Frontier
5.8
Fair
3,123 reviews
Southwest
8.0
Very good
4,238 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Overall

8.0

Crew

8.6

Food

7.0

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 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?

    Southwest and American Airlines can get you from San Juan Luis Munoz Marin Intl Airport to Buffalo in just under 7h 10m. Your travel time can differ by up to 2h 24m. 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 American Airlines - these airlines can fly you to your destination from $129 and $215, respectively. These flights start at 70% lower than the current average price 3 months from now.

  • 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 $117). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in October is currently the most expensive (average of $224). 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
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$102Average$306FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$129Average$172FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$215Average$326FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$261Average$442FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$264Average$428FlexibilityNo cancel feeOn-time62%

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