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Cheap flights from Buffalo to San Juan from $84

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 2/20. 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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Cheap round-trip flights

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Frontier Logo
9:57 am - 9:55 amBUF-SJU
22h 58m1 stop
Frontier Logo
7:00 am - 4:00 pmSJU-BUF
10h 00m1 stop
$241Frontier
Find Deal
Fri, Feb 20 - Fri, Feb 27
Frontier Logo
9:53 pm - 11:19 amBUF-SJU
12h 26m1 stop
Frontier Logo
6:52 pm - 1:04 pmSJU-BUF
19h 12m1 stop
$247Frontier
Find Deal
Mon, Nov 17 - Mon, Nov 24
United Airlines Logo
2:54 pm - 10:22 pmBUF-SJU
6h 28m1 stop
United Airlines Logo
4:50 pm - 11:46 pmSJU-BUF
6h 56m1 stop
$250United Airlines
Find Deal
Tue, Mar 3 - Wed, Mar 18
JetBlue Logo
1:10 pm - 8:35 pmBUF-SJU
7h 25m1 stop
JetBlue Logo
5:40 am - 2:25 pmSJU-BUF
8h 45m1 stop
$264JetBlue
Find Deal
Sat, Mar 21 - Mon, Mar 30
United Airlines Logo
2:55 pm - 10:22 pmBUF-SJU
6h 27m1 stop
United Airlines Logo
8:30 am - 2:20 pmSJU-BUF
6h 50m1 stop
$268United Airlines
Find Deal
Thu, Nov 13 - Tue, Nov 18
JetBlue Logo
12:45 pm - 11:47 pmBUF-SJU
10h 02m1 stop
JetBlue Logo
1:59 am - 8:29 amSJU-BUF
7h 30m1 stop
$280JetBlue
Find Deal
Sun, Mar 1 - Wed, Mar 4
Southwest Logo
12:35 pm - 11:20 pmBUF-SJU
9h 45m1 stop
Southwest Logo
5:45 am - 11:30 amSJU-BUF
6h 45m1 stop
$284Southwest
Find Deal
Fri, Dec 5 - Tue, Dec 9
American Airlines Logo
5:34 am - 11:52 pmBUF-SJU
17h 18m1 stop
American Airlines Logo
6:00 am - 3:17 pmSJU-BUF
10h 17m2 stops
$290American Airlines
Find Deal
Wed, Dec 10 - Wed, Jan 14
American Airlines Logo
5:24 pm - 11:59 amBUF-SJU
17h 35m2 stops
American Airlines Logo
6:57 pm - 11:07 amSJU-BUF
17h 10m2 stops
$295American Airlines
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Sun, Dec 14 - Mon, Dec 22
Southwest Logo
3:40 pm - 11:20 pmBUF-SJU
6h 40m1 stop
Southwest Logo
5:45 am - 2:20 pmSJU-BUF
9h 35m2 stops
$299Southwest
Find Deal
Fri, Dec 5 - Tue, Dec 9

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
Dec 10
BUF5:34 amBuffalo
17h 18m
1 stop
SJU11:52 pmSan Juan Luis Munoz Marin Intl
Jan 14
SJU6:00 amSan Juan Luis Munoz Marin Intl
10h 17m
2 stops
BUF3:17 pmBuffalo
$290
Find similar
American Airlines
Dec 14
BUF5:24 pmBuffalo
17h 35m
2 stops
SJU11:59 amSan Juan Luis Munoz Marin Intl
Dec 22
SJU6:57 pmSan Juan Luis Munoz Marin Intl
17h 10m
2 stops
BUF11:07 amBuffalo
$295
Find similar
American Airlines
Apr 28
BUF1:00 pmBuffalo
11h 10m
2 stops
SJU12:10 amSan Juan Luis Munoz Marin Intl
May 1
SJU5:40 amSan Juan Luis Munoz Marin Intl
9h 25m
1 stop
BUF3:05 pmBuffalo
$313
Find similar

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
Mar 21
BUF1:10 pmBuffalo
7h 25m
1 stop
SJU8:35 pmSan Juan Luis Munoz Marin Intl
Mar 30
SJU5:40 amSan Juan Luis Munoz Marin Intl
8h 45m
1 stop
BUF2:25 pmBuffalo
$264
Find similar
JetBlue
Mar 1
BUF12:45 pmBuffalo
10h 02m
1 stop
SJU11:47 pmSan Juan Luis Munoz Marin Intl
Mar 4
SJU1:59 amSan Juan Luis Munoz Marin Intl
7h 30m
1 stop
BUF8:29 amBuffalo
$280
Find similar
JetBlue
Mar 7
BUF7:30 pmBuffalo
7h 20m
1 stop
SJU3:50 amSan Juan Luis Munoz Marin Intl
Mar 15
SJU12:59 amSan Juan Luis Munoz Marin Intl
7h 30m
1 stop
BUF8:29 amBuffalo
$282
Find similar

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 November 3, 2025.
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

Fri 2/20

9:57 am-9:55 am

1 stop22h 58m

San Juan Luis Munoz Marin Intl

Fri 2/27

7:00 am-4:00 pm

1 stop10h 00m

$241

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 11/17

9:53 pm-11:19 am

1 stop12h 26m

San Juan Luis Munoz Marin Intl

Mon 11/24

6:52 pm-1:04 pm

1 stop19h 12m

$247

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 3/3

2:54 pm-10:22 pm

1 stop6h 28m

San Juan Luis Munoz Marin Intl

Wed 3/18

4:50 pm-11:46 pm

1 stop6h 56m

$250

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 3/21

1:10 pm-8:35 pm

1 stop7h 25m

San Juan Luis Munoz Marin Intl

Mon 3/30

5:40 am-2:25 pm

1 stop8h 45m

$264

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Thu 11/13

2:55 pm-10:22 pm

1 stop6h 27m

San Juan Luis Munoz Marin Intl

Tue 11/18

8:30 am-2:20 pm

1 stop6h 50m

$268

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 3/1

12:45 pm-11:47 pm

1 stop10h 02m

San Juan Luis Munoz Marin Intl

Wed 3/4

1:59 am-8:29 am

1 stop7h 30m

$280

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 12/5

12:35 pm-11:20 pm

1 stop9h 45m

San Juan Luis Munoz Marin Intl

Tue 12/9

5:45 am-11:30 am

1 stop6h 45m

$284

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 12/10

5:34 am-11:52 pm

1 stop17h 18m

San Juan Luis Munoz Marin Intl

Wed 1/14

6:00 am-3:17 pm

2 stops10h 17m

$290

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 12/14

5:24 pm-11:59 am

2 stops17h 35m

San Juan Luis Munoz Marin Intl

Mon 12/22

6:57 pm-11:07 am

2 stops17h 10m

$295

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 12/5

3:40 pm-11:20 pm

1 stop6h 40m

San Juan Luis Munoz Marin Intl

Tue 12/9

5:45 am-2:20 pm

2 stops9h 35m

$299

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 March is also cheap. Prices for this month can be found on momondo for an average of $350.

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 $374. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday 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 $468.

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 $325. Flights at noon are often more expensive with an average ticket price of $468.

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 $394 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 $315 on momondo.

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 November 2025, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 3% 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

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?

    Buffalo and San Juan Luis Munoz Marin Intl are 1848.0 mi apart from one another. Typically, this will take 6h 27m 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 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
FrontierPriceFrom $134Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
DeltaPriceFrom $160Free CancellationRating
7.9
8,001 reviews
Search Delta flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,238 reviews
Search Southwest flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
American AirlinesPriceFrom $264Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
JetBluePriceFrom $277Free CancellationRating
7.2
2,907 reviews
Search JetBlue 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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