Cheap flights from Buffalo to San Juan from C$ 137

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Buffalo to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Southwest Logo
3:50 p.m. - 11:15 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 25m1 stop Orlando
Southwest Logo
5:35 a.m. - 11:20 a.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 45m1 stop Orlando
C$ 330Southwest
Sat, 16 Jan - Sat, 23 Jan
Southwest Logo
2:20 p.m. - 11:15 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 55m1 stop Orlando
Southwest Logo
6:05 a.m. - 3:00 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
9h 55m1 stop Baltimore/Washington
C$ 330Southwest
Sat, 6 Feb - Wed, 10 Feb
United Airlines Logo
6:00 a.m. - 2:40 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 40m1 stop Newark
United Airlines Logo
2:05 a.m. - 10:02 a.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 57m1 stop Newark
C$ 330United Airlines
Mon, 22 Feb - Tue, 2 Mar
United Airlines Logo
3:00 p.m. - 10:22 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 22m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
2:05 a.m. - 10:02 a.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 57m1 stop Newark
C$ 330United Airlines
Tue, 23 Feb - Tue, 2 Mar
JetBlue Logo
1:31 p.m. - 9:38 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 07m1 stop Orlando
JetBlue Logo
11:45 a.m. - 6:53 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 08m1 stop Orlando
C$ 368JetBlue
Fri, 29 Jan - Sat, 13 Feb
JetBlue Logo
9:05 a.m. - 2:58 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
4h 53mdirect
JetBlue Logo
5:01 a.m. - 12:47 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 46m1 stop Orlando
C$ 368JetBlue
Fri, 4 Dec - Sat, 12 Dec
Frontier Logo
9:38 p.m. - 9:48 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
23h 10m1 stop Orlando
Frontier Logo
10:53 p.m. - 8:43 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
22h 50m1 stop Orlando
C$ 380Frontier
Sat, 30 Jan - Sun, 7 Feb
American Airlines Logo
12:37 p.m. - 10:40 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
9h 03m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
7:36 p.m. - 10:20 a.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
15h 44m1 stop Philadelphia
C$ 437American Airlines
Fri, 29 Jan - Sat, 13 Feb
American Airlines Logo
12:37 p.m. - 10:40 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
9h 03m2 stops Washington, D.C. Reagan-National Miami
American Airlines Logo
6:00 a.m. - 3:48 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 48m2 stops Miami Philadelphia
C$ 437American Airlines
Fri, 29 Jan - Sat, 13 Feb
Frontier Logo
9:38 p.m. - 9:48 p.m.BUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
23h 10m1 stop Orlando
Frontier Logo
11:00 a.m. - 8:43 p.m.SJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 43m1 stop Orlando
C$ 491Frontier
Mon, 18 Jan - Mon, 25 Jan

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

Our best Southwest deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
Southwest
16 Jan
BUF3:50 p.m.Buffalo
6h 25m
1 stop
SJU11:15 p.m.San Juan Luis Munoz Marin Intl
23 Jan
SJU5:35 a.m.San Juan Luis Munoz Marin Intl
10h 10m
2 stops
BUF2:45 p.m.Buffalo
C$ 421
Southwest
6 Nov
BUF3:05 p.m.Buffalo
9h 05m
1 stop
SJU1:10 a.m.San Juan Luis Munoz Marin Intl
12 Nov
SJU4:00 p.m.San Juan Luis Munoz Marin Intl
8h 25m
1 stop
BUF11:25 p.m.Buffalo
C$ 444
Southwest
14 Dec
BUF5:10 p.m.Buffalo
6h 40m
1 stop
SJU12:50 a.m.San Juan Luis Munoz Marin Intl
22 Dec
SJU6:35 a.m.San Juan Luis Munoz Marin Intl
10h 00m
2 stops
BUF3:35 p.m.Buffalo
C$ 446

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
15 Nov
BUF6:00 a.m.Buffalo
6h 15m
1 stop
SJU1:15 p.m.San Juan Luis Munoz Marin Intl
18 Nov
SJU2:05 a.m.San Juan Luis Munoz Marin Intl
9h 03m
1 stop
BUF10:08 a.m.Buffalo
C$ 330
United Airlines
9 Nov
BUF6:00 a.m.Buffalo
6h 32m
1 stop
SJU1:32 p.m.San Juan Luis Munoz Marin Intl
17 Nov
SJU2:05 a.m.San Juan Luis Munoz Marin Intl
15h 57m
2 stops
BUF5:02 p.m.Buffalo
C$ 352
United Airlines
6 Feb
BUF10:15 a.m.Buffalo
11h 07m
2 stops
SJU10:22 p.m.San Juan Luis Munoz Marin Intl
10 Feb
SJU8:05 a.m.San Juan Luis Munoz Marin Intl
9h 36m
2 stops
BUF4:41 p.m.Buffalo
C$ 362

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

Cheapest round-trip
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 16/1

3:50 p.m.-11:15 p.m.

1 stop6h 25m

San Juan Luis Munoz Marin Intl

Sat 23/1

5:35 a.m.-11:20 a.m.

1 stop6h 45m

C$ 330

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 6/2

2:20 p.m.-11:15 p.m.

1 stop7h 55m

San Juan Luis Munoz Marin Intl

Wed 10/2

6:05 a.m.-3:00 p.m.

1 stop9h 55m

C$ 330

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 22/2

6:00 a.m.-2:40 p.m.

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Tue 2/3

2:05 a.m.-10:02 a.m.

1 stop8h 57m

C$ 330

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 23/2

3:00 p.m.-10:22 p.m.

1 stop6h 22m

San Juan Luis Munoz Marin Intl

Tue 2/3

2:05 a.m.-10:02 a.m.

1 stop8h 57m

C$ 330

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 29/1

1:31 p.m.-9:38 p.m.

1 stop7h 07m

San Juan Luis Munoz Marin Intl

Sat 13/2

11:45 a.m.-6:53 p.m.

1 stop8h 08m

C$ 368

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 4/12

9:05 a.m.-2:58 p.m.

Nonstop4h 53m

San Juan Luis Munoz Marin Intl

Sat 12/12

5:01 a.m.-12:47 p.m.

1 stop8h 46m

C$ 368

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 30/1

9:38 p.m.-9:48 p.m.

1 stop23h 10m

San Juan Luis Munoz Marin Intl

Sun 7/2

10:53 p.m.-8:43 p.m.

1 stop22h 50m

C$ 380

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 29/1

12:37 p.m.-10:40 p.m.

2 stops9h 03m

San Juan Luis Munoz Marin Intl

Sat 13/2

7:36 p.m.-10:20 a.m.

1 stop15h 44m

C$ 437

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 29/1

12:37 p.m.-10:40 p.m.

2 stops9h 03m

San Juan Luis Munoz Marin Intl

Sat 13/2

6:00 a.m.-3:48 p.m.

2 stops10h 48m

C$ 437

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 18/1

9:38 p.m.-9:48 p.m.

1 stop23h 10m

San Juan Luis Munoz Marin Intl

Mon 25/1

11:00 a.m.-8:43 p.m.

1 stop10h 43m

C$ 491

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between Buffalo and San Juan Luis Munoz Marin Intl Airport?

Prices are currently low for flights on this route.

Typical prices usually range from C$ 403 to C$ 686.
The lowest price recently found on this route was C$ 330.

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

The month of October is, on average, the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport from Buffalo, with most prices found around C$ 417. If you don’t want to visit San Juan Luis Munoz Marin Intl Airport in October, then you should wait until August to fly from Buffalo, when ticket prices are also cheap, with an average price of C$ 492.

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$ 462. This is often the case because there is less demand to fly during this day of the week. When flying out on a Friday, 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$ 580.

What is the cheapest Buffalo to San Juan Luis Munoz Marin Intl flight route?

Fly from Buffalo to San Juan Luis Munoz Marin Intl for the best Buffalo - San Juan Luis Munoz Marin Intl flight prices

How far in advance should I book a flight from Buffalo 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$ 537 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$ 479 on momondo.

What cabin class options are available on Buffalo to San Juan Luis Munoz Marin Intl Airport flights?

There are 2 cabin classes available to choose from on Buffalo to San Juan Luis Munoz Marin Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Buffalo to San Juan Luis Munoz Marin Intl Airport flights?

You could potentially save up to 15% on your flight if you consider stops on a Buffalo to San Juan Luis Munoz Marin Intl Airport flight.

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

As of November 2026, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 71% 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

Best price found

C$ 137

Fastest flight time

4h 53m

Direct flights

Tue, Thu, Sat and Sun
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Buffalo in the past 72 hours is C$ 137. The best round-trip flight deal from Buffalo to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is C$ 330.
The fastest flight from Buffalo to San Juan Luis Munoz Marin Intl Airport takes 4h 53m
Direct flights go from Buffalo to San Juan Luis Munoz Marin Intl Airport on Tuesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights.

Frequently asked questions about flying from Buffalo to San Juan Luis Munoz Marin Intl Airport

  • 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 4h 53m 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?

  • 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 plane model from Buffalo 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
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom C$ 204Free CancellationRating
7.0
12,229 reviews
Search American Airlines flights
FrontierPriceFrom C$ 240Free CancellationRating
5.5
2,513 reviews
Search Frontier flights
JetBluePriceFrom C$ 297Free CancellationRating
7.1
3,065 reviews
Search JetBlue flights
SouthwestPriceFrom C$ 303Free CancellationRating
8.0
4,215 reviews
Search Southwest flights

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Rio Grande
Fajardo

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.

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Thu 3/12
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