What is the cheapest airline that flies from Buffalo to San Juan Luis Munoz Marin Intl?

Southwest, Delta, and United Airlines are the most popular carriers operating from Buffalo to San Juan Luis Munoz Marin Intl

Which layover airport has the shortest connection time from Buffalo to San Juan Luis Munoz Marin Intl Airport?

New York (JFK) has the shortest average layover time for this route: 1h 10m.

Which airlines fly to San Juan Luis Munoz Marin Intl Airport?

JetBlue, Southwest and Frontier are the top three most popular airlines that fly to San Juan Luis Munoz Marin Intl Airport from Buffalo according to our data. JetBlue is the first choice among our users, with 37% of people opting to fly with this airline when travelling to San Juan Luis Munoz Marin Intl Airport. Keep in mind that there are 5 different airlines that fly to San Juan Luis Munoz Marin Intl Airport on a routine basis, so you have a few additional options to choose from.

Which airport is the most popular layover for flights between Buffalo and San Juan Luis Munoz Marin Intl Airport?

Orlando (MCO) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Which layover airport has the shortest travel time from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Flights connecting via New York (JFK) have the shortest average one-way travel time: 6h 35m.

Which layover airport offers the lowest fares from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Flights via Orlando (MCO) offer the lowest average round-trip price of C$ 373.

When did momondo last update prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

Prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

How many operators does momondo search for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

The number of operators available for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport is 5 as of September 2025.

How old do you have to be to fly from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport.

What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

C$ 156 Cheap Flights from Buffalo to San Juan Luis Munoz Marin Intl Airport in 2025/26

1 adult

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Early arrival? Instantly customize your results

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Buffalo to San Juan

Round-trip

One-way

Last minute

Cheap round-trip flights

3:45 p.m. - 11:56 p.m.BUF-SJU

7h 11m1 stop

3:20 p.m. - 10:57 p.m.SJU-BUF

8h 37m1 stop

C$ 311Delta

Find Deal

Tue, 11 Nov - Thu, 20 Nov

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

10h 40m1 stop

7:00 a.m. - 2:36 p.m.SJU-BUF

8h 36m1 stop

C$ 332Delta

Find Deal

Sun, 1 Mar - Thu, 5 Mar

7:07 a.m. - 2:44 p.m.BUF-SJU

7h 37m1 stop

1:30 p.m. - 10:42 p.m.SJU-BUF

9h 12m1 stop

C$ 352United Airlines

Find Deal

Sun, 28 Sep - Thu, 2 Oct

3:40 p.m. - 1:25 a.m.BUF-SJU

8h 45m1 stop

2:05 p.m. - 10:00 p.m.SJU-BUF

8h 55m2 stops

C$ 388Southwest

Find Deal

Thu, 13 Nov - Wed, 19 Nov

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

10h 02m1 stop

1:15 p.m. - 9:31 p.m.SJU-BUF

9h 16m1 stop

C$ 390JetBlue

Find Deal

Sun, 1 Mar - Tue, 3 Mar

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

10h 02m1 stop

1:59 a.m. - 8:29 a.m.SJU-BUF

7h 30m1 stop

C$ 391JetBlue

Find Deal

Sun, 1 Mar - Mon, 2 Mar

3:40 p.m. - 1:25 a.m.BUF-SJU

8h 45m1 stop

2:05 p.m. - 10:00 p.m.SJU-BUF

8h 55m2 stops

C$ 421Southwest

Find Deal

Thu, 13 Nov - Wed, 19 Nov

6:30 a.m. - 1:45 p.m.BUF-SJU

7h 15m1 stop

1:05 a.m. - 9:43 a.m.SJU-BUF

8h 38m2 stops

C$ 439United Airlines

Find Deal

Tue, 14 Oct - Mon, 20 Oct

8:18 p.m. - 9:55 a.m.BUF-SJU

12h 37m1 stop

11:05 a.m. - 7:23 p.m.SJU-BUF

9h 18m1 stop

C$ 504Frontier

Find Deal

Thu, 29 Jan - Sun, 8 Feb

8:18 p.m. - 2:50 a.m.BUF-SJU

29h 32m1 stop

3:55 a.m. - 7:23 p.m.SJU-BUF

16h 28m1 stop

C$ 518Frontier

Find Deal

Thu, 29 Jan - Sat, 7 Feb

United Airlines flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets

United Airlines

28 Sep

BUF7:07 a.m.Buffalo

7h 37m

1 stop

SJU2:44 p.m.San Juan Luis Munoz Marin Intl

2 Oct

SJU1:30 p.m.San Juan Luis Munoz Marin Intl

9h 12m

1 stop

BUF10:42 p.m.Buffalo

C$ 352

Find similar

United Airlines

14 Oct

BUF6:30 a.m.Buffalo

7h 15m

1 stop

SJU1:45 p.m.San Juan Luis Munoz Marin Intl

20 Oct

SJU1:05 a.m.San Juan Luis Munoz Marin Intl

8h 38m

2 stops

BUF9:43 a.m.Buffalo

C$ 439

Find similar

United Airlines

29 Oct

BUF12:15 p.m.Buffalo

9h 07m

2 stops

SJU9:22 p.m.San Juan Luis Munoz Marin Intl

3 Nov

SJU8:10 a.m.San Juan Luis Munoz Marin Intl

15h 48m

2 stops

BUF10:58 p.m.Buffalo

C$ 454

Find similar

Delta flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets

Delta

11 Nov

BUF3:45 p.m.Buffalo

7h 11m

1 stop

SJU11:56 p.m.San Juan Luis Munoz Marin Intl

20 Nov

SJU3:20 p.m.San Juan Luis Munoz Marin Intl

8h 37m

1 stop

BUF10:57 p.m.Buffalo

C$ 311

Find similar

Delta

1 Mar

BUF12:09 p.m.Buffalo

10h 40m

1 stop

SJU11:49 p.m.San Juan Luis Munoz Marin Intl

5 Mar

SJU7:00 a.m.San Juan Luis Munoz Marin Intl

8h 36m

1 stop

BUF2:36 p.m.Buffalo

C$ 332

Find similar

Delta

23 Sep

BUF7:00 a.m.Buffalo

9h 17m

1 stop

SJU4:17 p.m.San Juan Luis Munoz Marin Intl

27 Sep

SJU1:32 p.m.San Juan Luis Munoz Marin Intl

10h 49m

1 stop

BUF12:21 a.m.Buffalo

C$ 388

Find similar

momondo Fare Finder

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

Fly to

Route

Depart

Return

Price

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 11/11

3:45 p.m.-11:56 p.m.

1 stop7h 11m

San Juan Luis Munoz Marin Intl

Thu 20/11

3:20 p.m.-10:57 p.m.

1 stop8h 37m

C$ 311

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

Thu 5/3

7:00 a.m.-2:36 p.m.

1 stop8h 36m

C$ 332

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 28/9

7:07 a.m.-2:44 p.m.

1 stop7h 37m

San Juan Luis Munoz Marin Intl

Thu 2/10

1:30 p.m.-10:42 p.m.

1 stop9h 12m

C$ 352

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 13/11

3:40 p.m.-1:25 a.m.

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Wed 19/11

2:05 p.m.-10:00 p.m.

2 stops8h 55m

C$ 388

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

1:15 p.m.-9:31 p.m.

1 stop9h 16m

C$ 390

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

Mon 2/3

1:59 a.m.-8:29 a.m.

1 stop7h 30m

C$ 391

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 13/11

3:40 p.m.-1:25 a.m.

1 stop8h 45m

San Juan Luis Munoz Marin Intl

Wed 19/11

2:05 p.m.-10:00 p.m.

2 stops8h 55m

C$ 421

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 14/10

6:30 a.m.-1:45 p.m.

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Mon 20/10

1:05 a.m.-9:43 a.m.

2 stops8h 38m

C$ 439

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 29/1

8:18 p.m.-9:55 a.m.

1 stop12h 37m

San Juan Luis Munoz Marin Intl

Sun 8/2

11:05 a.m.-7:23 p.m.

1 stop9h 18m

C$ 504

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 29/1

8:18 p.m.-2:50 a.m.

1 stop29h 32m

San Juan Luis Munoz Marin Intl

Sat 7/2

3:55 a.m.-7:23 p.m.

1 stop16h 28m

C$ 518

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Buffalo to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

The month of September is, on average, the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport from Buffalo, with most prices found around C$ 421. If you don’t want to visit San Juan Luis Munoz Marin Intl Airport in September, then you should wait until November to fly from Buffalo, when ticket prices are also cheap, with an average price of C$ 470.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport is on a Monday when prices can be found for as low as C$ 392. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Buffalo to San Juan Luis Munoz Marin Intl Airport for around C$ 893.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as C$ 600. At noon is when there is more demand to fly to San Juan Luis Munoz Marin Intl Airport, so prices are often more expensive at around C$ 703 per ticket.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around C$ 549 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Buffalo for as low as C$ 448 on momondo.

How have Buffalo to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of September 2025, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 64% more expensive when compared to flights at the same time last year.

When to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Buffalo to San Juan Luis Munoz Marin Intl Airport (BUF to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Juan Luis Munoz Marin Intl Airport

Direct flights	None

There are no direct flights from Buffalo to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from Buffalo to San Juan Luis Munoz Marin Intl Airport.

Search flight deals

How far is Buffalo to San Juan Luis Munoz Marin Intl by plane?
San Juan Luis Munoz Marin Intl is 2974.1 km away from Buffalo. Typically, this will take 6h 10m by plane in normal conditions.
When did momondo last update prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?
Prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.
How many operators does momondo search for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?
The number of operators available for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport is 5 as of September 2025.
How old do you have to be to fly from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport.
What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?
The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Based on momondo bookings for flights between Buffalo and San Juan Luis Munoz Marin Intl Airport, the leading airline is JetBlue, making up 36% of the total bookings. Other popular airlines include Southwest with 31%, Frontier with 18%, and Delta with 10%.

Best airlines flying from Buffalo to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Buffalo to San Juan Luis Munoz Marin Intl Airport with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom C$ 165	Free Cancellation	Rating 7.9 7,957 reviews	Search Delta flights
Frontier	PriceFrom C$ 235	Free Cancellation	Rating 5.8 3,174 reviews	Search Frontier flights
JetBlue	PriceFrom C$ 380	Free Cancellation	Rating 7.2 2,914 reviews	Search JetBlue flights
Southwest	PriceFrom C$ 392	Free Cancellation	Rating 8.0 4,242 reviews	Search Southwest flights
United Airlines	PriceFrom C$ 521	Free Cancellation	Rating 7.4 8,924 reviews	Search United Airlines flights

Rio Grande

Carolina

Humacao

Dorado

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Juan?

Finding the right flight to San Juan from Buffalo is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Buffalo to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Buffalo which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Buffalo to San Juan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Buffalo.

I’m not ready to book a flight from Buffalo to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Buffalo to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Thu 16/10

Thu 23/10

Email me momondo's favourite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan

San Juan Luis Munoz Marin Intl Airport flight routes

Flights from Toronto Pearson Intl to San Juan Luis Munoz Marin Intl

Flights from Boston Logan Intl to San Juan Luis Munoz Marin Intl

Flights from Detroit Metropolitan Wayne County to San Juan Luis Munoz Marin Intl

Flights from New York John F Kennedy Intl to San Juan Luis Munoz Marin Intl

Flights from Miami to San Juan Luis Munoz Marin Intl

Cheap flights from Buffalo to San Juan from C$ 156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to San Juan departing on 7/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Buffalo to San Juan

Cheap round-trip flights

Cheap one-way flights

Cheap last-minute flights

United Airlines flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets

Delta flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Buffalo to San Juan Luis Munoz Marin Intl Airport that are best for you.

See travel insights to San Juan from

How to get the cheapest flight ticket from Buffalo to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as C$ 600. At noon is when there is more demand to fly to San Juan Luis Munoz Marin Intl Airport, so prices are often more expensive at around C$ 703 per ticket.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

How have Buffalo to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of September 2025, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 64% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Buffalo to San Juan Luis Munoz Marin Intl?

Southwest, Delta, and United Airlines are the most popular carriers operating from Buffalo to San Juan Luis Munoz Marin Intl

Which airlines fly to San Juan Luis Munoz Marin Intl Airport?

Which airport is the most popular layover for flights between Buffalo and San Juan Luis Munoz Marin Intl Airport?

Orlando (MCO) was the most common stop: 50% of momondo users choosing one-stop flights on this route connected there.

Which layover airport offers the lowest fares from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Flights via Orlando (MCO) offer the lowest average round-trip price of C$ 373.

Which layover airport has the shortest travel time from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Flights connecting via New York (JFK) have the shortest average one-way travel time: 6h 35m.

Which layover airport has the shortest connection time from Buffalo to San Juan Luis Munoz Marin Intl Airport?

New York (JFK) has the shortest average layover time for this route: 1h 10m.

When to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Cheap Buffalo to San Juan Luis Munoz Marin Intl Airport (BUF to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Juan Luis Munoz Marin Intl Airport

Direct flights

How far is Buffalo to San Juan Luis Munoz Marin Intl by plane?

When did momondo last update prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

How many operators does momondo search for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

How old do you have to be to fly from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

What is the most popular airline from Buffalo to San Juan Luis Munoz Marin Intl Airport?

Best airlines flying from Buffalo to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Buffalo to San Juan Luis Munoz Marin Intl Airport with momondo

Travelling to a place near San Juan?

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Juan?

Can I find flights from Buffalo to San Juan with flexible booking policies on momondo?

How can momondo help me find flights from Buffalo to San Juan?

I’m not ready to book a flight from Buffalo to San Juan right now. Can momondo alert me if prices change?

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to San Juan

San Juan Luis Munoz Marin Intl Airport flight routes

According to popular flight searches on momondo this year