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Cheap flights from Buffalo to San Juan from $95

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 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Buffalo to San Juan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:45 pm - 2:25 am
BUF
-
SJU
8h 40m
1 stop
Frontier Logo
3:53 am - 11:34 am
SJU
-
BUF
8h 41m
1 stop
$192Frontier
Mon, Feb 23 - Wed, Feb 25
Frontier Logo
1:09 pm - 12:14 am
BUF
-
SJU
11h 05m
1 stop
Frontier Logo
6:30 am - 7:13 pm
SJU
-
BUF
12h 43m
1 stop
$193Frontier
Sat, Apr 11 - Thu, Apr 16
Multiple Airlines Logo
10:35 am - 7:39 pm
BUF
-
SJU
8h 04m
1 stop
Multiple Airlines Logo
3:53 am - 11:34 am
SJU
-
BUF
8h 41m
1 stop
$202Multiple Airlines
Sun, Feb 22 - Wed, Feb 25
Frontier Logo
4:45 pm - 2:25 am
BUF
-
SJU
8h 40m
1 stop
Frontier Logo
10:57 am - 10:49 am
SJU
-
BUF
24h 52m
1 stop
$206Frontier
Mon, Mar 2 - Thu, Mar 5
Multiple Airlines Logo
4:45 pm - 2:25 am
BUF
-
SJU
8h 40m
1 stop
Multiple Airlines Logo
11:59 pm - 9:35 am
SJU
-
BUF
10h 36m
1 stop
$207Multiple Airlines
Mon, Mar 2 - Fri, Mar 6
Multiple Airlines Logo
3:00 pm - 11:59 pm
BUF
-
SJU
7h 59m
1 stop
Multiple Airlines Logo
5:25 pm - 11:34 am
SJU
-
BUF
19h 09m
1 stop
$208Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Delta Logo
12:06 pm - 8:24 pm
BUF
-
SJU
8h 18m
1 stop
Delta Logo
1:25 pm - 12:49 am
SJU
-
BUF
11h 24m
1 stop
$212Delta
Tue, Apr 14 - Wed, Apr 22
JetBlue Logo
12:25 pm - 9:01 pm
BUF
-
SJU
8h 36m
1 stop
JetBlue Logo
8:10 am - 3:10 pm
SJU
-
BUF
7h 00m
1 stop
$213JetBlue
Tue, May 19 - Wed, May 27
Frontier Logo
7:31 pm - 2:01 am
BUF
-
SJU
6h 30m
1 stop
Frontier Logo
6:30 am - 7:13 pm
SJU
-
BUF
12h 43m
1 stop
$214Frontier
Sat, Apr 11 - Mon, Apr 20
Multiple Airlines Logo
7:30 pm - 4:11 am
BUF
-
SJU
7h 41m
1 stop
Multiple Airlines Logo
7:55 pm - 7:49 am
SJU
-
BUF
12h 54m
1 stop
$216Multiple Airlines
Sat, Feb 28 - Sat, Mar 7

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

Our best JetBlue deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
JetBlue
May 19
BUF12:25 pmBuffalo
8h 36m
1 stop
SJU9:01 pmSan Juan Luis Munoz Marin Intl
May 27
SJU8:10 amSan Juan Luis Munoz Marin Intl
7h 00m
1 stop
BUF3:10 pmBuffalo
$213
JetBlue
Mar 4
BUF7:41 pmBuffalo
7h 10m
1 stop
SJU3:51 amSan Juan Luis Munoz Marin Intl
Mar 11
SJU5:15 amSan Juan Luis Munoz Marin Intl
7h 40m
1 stop
BUF12:55 pmBuffalo
$232
JetBlue
May 18
BUF7:39 pmBuffalo
6h 28m
1 stop
SJU2:07 amSan Juan Luis Munoz Marin Intl
May 28
SJU1:45 pmSan Juan Luis Munoz Marin Intl
9h 12m
1 stop
BUF10:57 pmBuffalo
$233

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

Our best American Airlines deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
American Airlines
Feb 23
BUF12:44 pmBuffalo
9h 50m
2 stops
SJU11:34 pmSan Juan Luis Munoz Marin Intl
Feb 26
SJU8:40 amSan Juan Luis Munoz Marin Intl
9h 12m
2 stops
BUF4:52 pmBuffalo
$257
American Airlines
Feb 18
BUF5:24 amBuffalo
10h 28m
2 stops
SJU4:52 pmSan Juan Luis Munoz Marin Intl
Feb 25
SJU8:40 amSan Juan Luis Munoz Marin Intl
9h 12m
2 stops
BUF4:52 pmBuffalo
$376
American Airlines
Feb 6
BUF6:53 pmBuffalo
17h 15m
1 stop
SJU1:08 pmSan Juan Luis Munoz Marin Intl
Feb 10
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 17m
2 stops
BUF3:17 pmBuffalo
$411

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated February 5, 2026.
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

Mon 2/23

4:45 pm-2:25 am

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Wed 2/25

3:53 am-11:34 am

1 stop8h 41m

$192

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 4/11

1:09 pm-12:14 am

1 stop11h 05m

San Juan Luis Munoz Marin Intl

Thu 4/16

6:30 am-7:13 pm

1 stop12h 43m

$193

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 2/22

10:35 am-7:39 pm

1 stop8h 04m

San Juan Luis Munoz Marin Intl

Wed 2/25

3:53 am-11:34 am

1 stop8h 41m

$202

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 3/2

4:45 pm-2:25 am

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Thu 3/5

10:57 am-10:49 am

1 stop24h 52m

$206

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 3/2

4:45 pm-2:25 am

1 stop8h 40m

San Juan Luis Munoz Marin Intl

Fri 3/6

11:59 pm-9:35 am

1 stop10h 36m

$207

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 2/18

3:00 pm-11:59 pm

1 stop7h 59m

San Juan Luis Munoz Marin Intl

Wed 2/25

5:25 pm-11:34 am

1 stop19h 09m

$208

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 4/14

12:06 pm-8:24 pm

1 stop8h 18m

San Juan Luis Munoz Marin Intl

Wed 4/22

1:25 pm-12:49 am

1 stop11h 24m

$212

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 5/19

12:25 pm-9:01 pm

1 stop8h 36m

San Juan Luis Munoz Marin Intl

Wed 5/27

8:10 am-3:10 pm

1 stop7h 00m

$213

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 4/11

7:31 pm-2:01 am

1 stop6h 30m

San Juan Luis Munoz Marin Intl

Mon 4/20

6:30 am-7:13 pm

1 stop12h 43m

$214

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 2/28

7:30 pm-4:11 am

1 stop7h 41m

San Juan Luis Munoz Marin Intl

Sat 3/7

7:55 pm-7:49 am

1 stop12h 54m

$216

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

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 September, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $314.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as $395. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday 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 $1,195.

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 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 $381 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 $309 on momondo.

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

There is only 1 cabin class available to choose from on Buffalo to San Juan Luis Munoz Marin Intl 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?

No. A direct flight is the cheapest option for a flight between Buffalo 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 February 2026, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 26% cheaper 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

$434

Fastest flight time

3h 49m

Direct flights

Tue, Thu, Sat and Sun
The best flight deal from Buffalo to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is $434
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. There are no airlines offering direct flights.
Search flight deals

  • 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 $126Free CancellationRating
7.9
8,153 reviews
Search Delta flights
FrontierPriceFrom $129Free CancellationRating
5.7
3,053 reviews
Search Frontier flights
JetBluePriceFrom $192Free CancellationRating
7.2
2,894 reviews
Search JetBlue flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
American AirlinesPriceFrom $231Free CancellationRating
7.2
11,237 reviews
Search American Airlines flights
United AirlinesPriceFrom $239Free CancellationRating
7.4
9,241 reviews
Search United Airlines 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
Caguas
Humacao
Rio Grande
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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