HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Buffalo

$118+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Buffalo are usually found in September or October, booked 50 days in advance, depart on a Thursday or Tuesday and return on a Tuesday

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 July 25, 2025.

Round-trip from

$205
(Delta)

One-way from

$118
(JetBlue)

Popular in

December

Cheapest in

September

Average price

$428
From San Juan Luis Munoz Marin Intl to Buffalo
Search Deals
One-way flight from San Juan Luis Munoz Marin Intl to Buffalo
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 25, 2025.

This Delta deal was found by Cheapflights users on 7/24. 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.
Fri 9/192:15 pmSJU - BUF
1 stop8h 41mDelta
Mon 9/223:52 pmBUF - SJU
1 stop7h 55mDelta
Deal found 7/24$205
This American Airlines deal was found by Cheapflights users on 7/23. 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 9/204:45 pmSJU - BUF
2 stops17h 02mAmerican Airlines
Tue 9/306:00 amBUF - SJU
2 stops12h 14mAmerican Airlines
Deal found 7/23$220
This Southwest deal was found by Cheapflights users on 7/24. 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 9/124:05 pmSJU - BUF
1 stop7h 00mSouthwest
Sun 9/145:55 pmBUF - SJU
1 stop6h 40mSouthwest
Deal found 7/24$240
This United Airlines deal was found by Cheapflights users on 7/24. 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.
Fri 10/241:05 amSJU - BUF
2 stops8h 38mUnited Airlines
Sat 11/16:00 amBUF - SJU
2 stops14h 00mUnited Airlines
Deal found 7/24$243
This Frontier deal was found by Cheapflights users on 7/24. 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 8/169:30 pmSJU - BUF
1 stop11h 22mFrontier
Sat 8/237:05 pmBUF - SJU
1 stop13h 54mFrontier
Deal found 7/24$248
This JetBlue deal was found by Cheapflights users on 7/24. 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.
Fri 10/314:25 amSJU - BUF
1 stop6h 50mJetBlue
Fri 10/312:00 pmBUF - SJU
1 stop8h 53mJetBlue
Deal found 7/24$253

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 July 25, 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

Fri 9/19

2:15 pm-10:56 pm

1 stop8h 41m

Buffalo

Mon 9/22

3:52 pm-11:47 pm

1 stop7h 55m

$205

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 9/20

4:45 pm-9:47 am

2 stops17h 02m

Buffalo

Tue 9/30

6:00 am-6:14 pm

2 stops12h 14m

$220

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 9/12

4:05 pm-11:05 pm

1 stop7h 00m

Buffalo

Sun 9/14

5:55 pm-12:35 am

1 stop6h 40m

$240

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 10/24

1:05 am-9:43 am

2 stops8h 38m

Buffalo

Sat 11/1

6:00 am-8:00 pm

2 stops14h 00m

$243

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sat 8/16

9:30 pm-8:52 am

1 stop11h 22m

Buffalo

Sat 8/23

7:05 pm-8:59 am

1 stop13h 54m

$248

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 10/31

4:25 am-11:15 am

1 stop6h 50m

Buffalo

Fri 10/31

2:00 pm-10:53 pm

1 stop8h 53m

$253

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 8/13

8:50 am-5:09 pm

1 stop8h 19m

$118

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 8/14

9:30 pm-7:47 am

1 stop10h 17m

$124

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Mon 12/22

6:00 pm-11:50 pm

1 stop6h 50m

$126

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 11/5

6:00 am-4:53 pm

2 stops11h 53m

$148

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/24

Showing 1-10 of 13 results
1
2

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 July 18, 2025.

Booking 50 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, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo (average of $256). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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 July 25, 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 22% 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 Wednesday at noon 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 July 25, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
Delta
8.0
Very good
7,967 reviews
Southwest
8.0
Very good
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
United Airlines
7.4
Good
8,876 reviews
Southwest
8.0
Very good
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
JetBlue
7.3
Good
2,912 reviews
Southwest
8.0
Very good
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,235 reviews

Food

7.0

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

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 6 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.

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

    Currently priced at $205, 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 American Airlines and Southwest - these airlines can fly you to your destination from $220 and $240, respectively. These flights start at 41% 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 JetBlue, which is currently one of the cheapest options available, starting at $118. Frontier flights start at $124 while deals on Delta start at $126 one-way.

  • 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, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo (average of $256). Flying from San Juan Luis Munoz Marin Intl Airport to Buffalo in December is currently the most expensive (average of $337). 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
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Luis Munoz Marin Intl to Buffalo

Discover the top 6 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 July 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$130Average$311FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$160Average$178FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$248Average$274FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$248Average$385FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$362Average$529FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$370Average$494FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.