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Cheap flights from Buffalo to San Juan from $110

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.
JetBlue Logo
2:54 pm - 11:49 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
8h 55m1 stop Boston Logan Intl
JetBlue Logo
6:00 am - 1:19 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
7h 19m1 stop Boston Logan Intl
$216JetBlue
Sat, Oct 24 - Fri, Oct 30
American Airlines Logo
7:33 pm - 11:42 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
15h 09m1 stop Charlotte Douglas
American Airlines Logo
6:15 pm - 11:52 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 37m1 stop Charlotte Douglas
$220American Airlines
Mon, Feb 22 - Thu, Feb 25
Southwest Logo
5:45 pm - 12:10 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 25m1 stop Baltimore/Washington
Southwest Logo
6:30 am - 4:10 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
9h 40m1 stop Orlando
$220Southwest
Fri, Oct 16 - Mon, Oct 19
Southwest Logo
5:45 pm - 12:10 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 25m1 stop Baltimore/Washington
Southwest Logo
5:35 pm - 11:45 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 10m1 stop Baltimore/Washington
$220Southwest
Fri, Oct 16 - Fri, Oct 23
JetBlue Logo
6:00 am - 1:46 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 46m1 stop New York John F Kennedy Intl
JetBlue Logo
10:45 am - 7:02 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
8h 17m1 stop New York John F Kennedy Intl
$220JetBlue
Mon, Oct 26 - Wed, Oct 28
American Airlines Logo
7:53 pm - 12:09 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
16h 16m1 stop Charlotte Douglas
American Airlines Logo
12:21 pm - 10:24 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 03m2 stops Miami New York LaGuardia
$220American Airlines
Mon, Oct 26 - Wed, Oct 28
Frontier Logo
1:48 pm - 12:59 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
10h 11m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
10:21 pm - 8:24 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
23h 03m1 stop Orlando
$222Frontier
Mon, Nov 16 - Mon, Nov 23
Frontier Logo
1:48 pm - 12:59 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
10h 11m1 stop Atlanta Hartsfield-Jackson
Frontier Logo
6:25 pm - 6:34 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
25h 09m1 stop Atlanta Hartsfield-Jackson
$222Frontier
Mon, Nov 16 - Thu, Dec 3
United Airlines Logo
6:30 am - 1:45 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 15m1 stop Newark
United Airlines Logo
12:00 pm - 11:46 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
11h 46m2 stops Newark Washington, D.C. Dulles Intl
$231United Airlines
Mon, Oct 19 - Mon, Oct 26
United Airlines Logo
6:00 am - 1:11 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 11m1 stop Newark
United Airlines Logo
2:05 am - 10:26 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
9h 21m1 stop Newark
$292United Airlines
Tue, Mar 2 - Tue, Mar 9

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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
Nov 13
BUF3:20 pmBuffalo
7h 34m
1 stop
SJU11:54 pmSan Juan Luis Munoz Marin Intl
Nov 17
SJU6:10 pmSan Juan Luis Munoz Marin Intl
6h 47m
1 stop
BUF11:57 pmBuffalo
$304
Delta
Sep 22
BUF6:05 amBuffalo
7h 40m
1 stop
SJU1:45 pmSan Juan Luis Munoz Marin Intl
Oct 3
SJU7:30 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
BUF3:05 pmBuffalo
$369
Delta
Sep 23
BUF3:58 pmBuffalo
6h 21m
1 stop
SJU10:19 pmSan Juan Luis Munoz Marin Intl
Oct 3
SJU7:30 amSan Juan Luis Munoz Marin Intl
7h 35m
1 stop
BUF3:05 pmBuffalo
$379

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 23
SJU10:21 pmSan Juan Luis Munoz Marin Intl
23h 03m
1 stop
BUF8:24 pmBuffalo
$222
Frontier
Oct 13
BUF6:51 pmBuffalo
19h 45m
1 stop
SJU2:36 pmSan Juan Luis Munoz Marin Intl
Oct 20
SJU7:20 amSan Juan Luis Munoz Marin Intl
10h 36m
1 stop
BUF5:56 pmBuffalo
$254
Frontier
Oct 13
BUF6:51 pmBuffalo
14h 27m
1 stop
SJU9:18 amSan Juan Luis Munoz Marin Intl
Oct 20
SJU7:15 amSan Juan Luis Munoz Marin Intl
29h 44m
2 stops
BUF12:59 pmBuffalo
$259

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

Sat 10/24

2:54 pm-11:49 pm

1 stop8h 55m

San Juan Luis Munoz Marin Intl

Fri 10/30

6:00 am-1:19 pm

1 stop7h 19m

$216

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 2/22

7:33 pm-11:42 am

1 stop15h 09m

San Juan Luis Munoz Marin Intl

Thu 2/25

6:15 pm-11:52 pm

1 stop6h 37m

$220

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 10/16

5:45 pm-12:10 am

1 stop6h 25m

San Juan Luis Munoz Marin Intl

Mon 10/19

6:30 am-4:10 pm

1 stop9h 40m

$220
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 10/16

5:45 pm-12:10 am

1 stop6h 25m

San Juan Luis Munoz Marin Intl

Fri 10/23

5:35 pm-11:45 pm

1 stop6h 10m

$220

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 10/26

6:00 am-1:46 pm

1 stop7h 46m

San Juan Luis Munoz Marin Intl

Wed 10/28

10:45 am-7:02 pm

1 stop8h 17m

$220

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 10/26

7:53 pm-12:09 pm

1 stop16h 16m

San Juan Luis Munoz Marin Intl

Wed 10/28

12:21 pm-10:24 pm

2 stops10h 03m

$220

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

Mon 11/23

10:21 pm-8:24 pm

1 stop23h 03m

$222

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

Thu 12/3

6:25 pm-6:34 pm

1 stop25h 09m

$222

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 10/19

6:30 am-1:45 pm

1 stop7h 15m

San Juan Luis Munoz Marin Intl

Mon 10/26

12:00 pm-11:46 pm

2 stops11h 46m

$231

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 3/2

6:00 am-1:11 pm

1 stop6h 11m

San Juan Luis Munoz Marin Intl

Tue 3/9

2:05 am-10:26 am

1 stop9h 21m

$292

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 $322 to $410.
The lowest price recently found on this route was $216.

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 March is also cheap. Prices for this month can be found on momondo for an average of $344.

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 Tuesday. momondo users have found tickets for Tuesday departures for as low as $390. 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 $495.

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 $317 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 33% 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 September 2026, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 110% 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

$110

Fastest flight time

3h 15m

Direct flights

Mon, 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 $110. 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 $216.
The fastest flight from Buffalo to San Juan Luis Munoz Marin Intl Airport takes 3h 15m
Direct flights go from Buffalo to San Juan Luis Munoz Marin Intl Airport on Monday, 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 15m 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
8,579 reviews
Search Delta flights
FrontierPriceFrom $153Free CancellationRating
5.6
2,600 reviews
Search Frontier flights
JetBluePriceFrom $211Free CancellationRating
7.1
3,035 reviews
Search JetBlue flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
10,213 reviews
Search United Airlines flights
American AirlinesPriceFrom $231Free CancellationRating
7.1
12,076 reviews
Search American Airlines flights
SouthwestPriceFrom $250Free CancellationRating
8.0
4,188 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
Luquillo
Rio Grande
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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