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Cheap flights from Buffalo to San Juan from $94

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
3:45 pm - 11:30 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 45m1 stop Baltimore/Washington
Southwest Logo
5:35 am - 11:20 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 45m1 stop Orlando
$236Southwest
Tue, Jan 19 - Sat, Jan 23
Southwest Logo
12:45 pm - 11:25 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
9h 40m1 stop Baltimore/Washington
Southwest Logo
6:10 am - 2:00 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 50m1 stop Tampa
$236Southwest
Tue, Dec 8 - Tue, Dec 15
Delta Logo
12:09 pm - 8:20 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
8h 11m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:30 am - 3:27 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
7h 57m1 stop Atlanta Hartsfield-Jackson
$236Delta
Sat, May 1 - Sat, May 8
Delta Logo
12:09 pm - 8:20 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
8h 11m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:15 am - 1:16 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
7h 01m1 stop Atlanta Hartsfield-Jackson
$236Delta
Sun, Apr 25 - Wed, Apr 28
United Airlines Logo
6:00 am - 2:40 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 40m1 stop Newark
United Airlines Logo
2:05 am - 10:02 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 57m1 stop Newark
$236United Airlines
Mon, Feb 22 - Tue, Mar 2
United Airlines Logo
3:00 pm - 10:22 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 22m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
2:05 am - 10:02 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 57m1 stop Newark
$236United Airlines
Tue, Feb 23 - Tue, Mar 2
Frontier Logo
1:48 pm - 12:59 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
10h 11m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
5:19 am - 12:59 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 40m1 stop Atlanta Hartsfield-Jackson
$237Frontier
Mon, Nov 16 - Fri, Nov 20
Frontier Logo
1:15 pm - 1:07 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
10h 52m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
8:44 pm - 1:35 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
17h 51m1 stop Orlando
$240Frontier
Wed, Dec 2 - Thu, Dec 10
JetBlue Logo
8:58 am - 6:37 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
8h 39m1 stop Orlando
JetBlue Logo
2:30 pm - 6:11 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
4h 41mnonstop
$242JetBlue
Tue, Nov 17 - Sat, Nov 21
JetBlue Logo
9:05 am - 2:58 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
4h 53mnonstop
JetBlue Logo
6:10 pm - 11:57 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 47m1 stop Fort Lauderdale
$260JetBlue
Fri, Dec 11 - Sun, Dec 13

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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
Dec 8
BUF12:45 pmBuffalo
9h 40m
1 stop
SJU11:25 pmSan Juan Luis Munoz Marin Intl
Dec 15
SJU6:10 amSan Juan Luis Munoz Marin Intl
8h 50m
1 stop
BUF2:00 pmBuffalo
$236
Southwest
Dec 5
BUF3:30 pmBuffalo
6h 25m
1 stop
SJU10:55 pmSan Juan Luis Munoz Marin Intl
Dec 7
SJU6:40 amSan Juan Luis Munoz Marin Intl
10h 50m
1 stop
BUF4:30 pmBuffalo
$270
Southwest
Nov 6
BUF3:05 pmBuffalo
9h 05m
1 stop
SJU1:10 amSan Juan Luis Munoz Marin Intl
Nov 12
SJU4:00 pmSan Juan Luis Munoz Marin Intl
8h 25m
1 stop
BUF11:25 pmBuffalo
$318

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

Our best Frontier deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
Frontier
Nov 16
BUF1:48 pmBuffalo
10h 11m
1 stop
SJU12:59 amSan Juan Luis Munoz Marin Intl
Nov 20
SJU5:19 amSan Juan Luis Munoz Marin Intl
8h 40m
1 stop
BUF12:59 pmBuffalo
$237
Frontier
Dec 2
BUF1:15 pmBuffalo
10h 52m
1 stop
SJU1:07 amSan Juan Luis Munoz Marin Intl
Dec 10
SJU8:44 pmSan Juan Luis Munoz Marin Intl
17h 51m
1 stop
BUF1:35 pmBuffalo
$240
Frontier
Nov 27
BUF12:45 pmBuffalo
12h 48m
1 stop
SJU2:33 amSan Juan Luis Munoz Marin Intl
Dec 3
SJU3:43 amSan Juan Luis Munoz Marin Intl
10h 52m
1 stop
BUF1:35 pmBuffalo
$241

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

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 1/19

3:45 pm-11:30 pm

1 stop6h 45m

San Juan Luis Munoz Marin Intl

Sat 1/23

5:35 am-11:20 am

1 stop6h 45m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 12/8

12:45 pm-11:25 pm

1 stop9h 40m

San Juan Luis Munoz Marin Intl

Tue 12/15

6:10 am-2:00 pm

1 stop8h 50m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 5/1

12:09 pm-8:20 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Sat 5/8

7:30 am-3:27 pm

1 stop7h 57m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sun 4/25

12:09 pm-8:20 pm

1 stop8h 11m

San Juan Luis Munoz Marin Intl

Wed 4/28

6:15 am-1:16 pm

1 stop7h 01m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 2/22

6:00 am-2:40 pm

1 stop7h 40m

San Juan Luis Munoz Marin Intl

Tue 3/2

2:05 am-10:02 am

1 stop8h 57m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 2/23

3:00 pm-10:22 pm

1 stop6h 22m

San Juan Luis Munoz Marin Intl

Tue 3/2

2:05 am-10:02 am

1 stop8h 57m

$236

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 11/16

1:48 pm-12:59 am

1 stop10h 11m

San Juan Luis Munoz Marin Intl

Fri 11/20

5:19 am-12:59 pm

1 stop8h 40m

$237

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 12/2

1:15 pm-1:07 am

1 stop10h 52m

San Juan Luis Munoz Marin Intl

Thu 12/10

8:44 pm-1:35 pm

1 stop17h 51m

$240

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 11/17

8:58 am-6:37 pm

1 stop8h 39m

San Juan Luis Munoz Marin Intl

Sat 11/21

2:30 pm-6:11 pm

Nonstop4h 41m

$242
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 12/11

9:05 am-2:58 pm

Nonstop4h 53m

San Juan Luis Munoz Marin Intl

Sun 12/13

6:10 pm-11:57 pm

1 stop6h 47m

$260

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 $288 to $491.
The lowest price recently found on this route was $236.

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

If you aren’t able to travel to San Juan Luis Munoz Marin Intl Airport during the month of October, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $352.

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

On average, the least expensive day to fly to San Juan Luis Munoz Marin Intl Airport from Buffalo is on a Friday. momondo users have found tickets for Friday departures for as low as $361. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Buffalo because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $472.

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 $384 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 $343 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 45% 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 70% 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

$94

Fastest flight time

3h 49m

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 $94. 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 $236.
The fastest flight from Buffalo to San Juan Luis Munoz Marin Intl Airport takes 3h 49m
Direct flights go from Buffalo to San Juan Luis Munoz Marin Intl Airport on Tuesday, Thursday, Saturday and Sunday. The only airline offering direct flights is JetBlue.
Search flight deals

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?

    Buffalo and San Juan Luis Munoz Marin Intl are 1848.0 mi apart from one another. Typically, this will take 3h 49m 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 are updated daily.

  • 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 required travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. We recommend that you seek guidance from your airline or a reliable 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
DeltaPriceFrom $106Free CancellationRating
7.8
8,698 reviews
Search Delta flights
FrontierPriceFrom $153Free CancellationRating
5.5
2,511 reviews
Search Frontier flights
JetBluePriceFrom $202Free CancellationRating
7.1
3,065 reviews
Search JetBlue flights
United AirlinesPriceFrom $222Free CancellationRating
7.3
10,462 reviews
Search United Airlines flights
American AirlinesPriceFrom $232Free CancellationRating
7.0
12,231 reviews
Search American Airlines flights
SouthwestPriceFrom $236Free CancellationRating
8.0
4,214 reviews
Search Southwest flights

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Carolina
Fajardo
Dorado
Rio Grande
Luquillo
Humacao
Caguas
Bayamón

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Buffalo to San Juan. momondo saves you time and could save you money on your trip.

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

Flights from Buffalo to San Juan with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Buffalo to San Juan flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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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