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Cheap flights from Buffalo to San Juan from $103

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 8/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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.
United Airlines Logo
6:30 am - 9:24 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
13h 54m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
United Airlines Logo
2:05 am - 10:08 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
9h 03m1 stop Newark
$292United Airlines
Tue, Nov 3 - Fri, Nov 6
United Airlines Logo
6:00 am - 1:53 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 53m1 stop Newark
United Airlines Logo
4:55 pm - 11:50 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 55m1 stop Washington, D.C. Dulles Intl
$295United Airlines
Tue, Sep 22 - Thu, Sep 24
American Airlines Logo
7:42 pm - 1:03 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
16h 21m1 stop Charlotte Douglas
American Airlines Logo
6:28 am - 3:50 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 22m1 stop Dallas/Fort Worth
$296American Airlines
Fri, Nov 6 - Wed, Nov 18
Southwest Logo
5:30 pm - 1:05 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
6h 35m1 stop Baltimore/Washington
Southwest Logo
6:40 am - 12:05 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
6h 25m1 stop Baltimore/Washington
$306Southwest
Fri, Nov 6 - Tue, Nov 10
Southwest Logo
4:35 pm - 11:55 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
7h 20m1 stop Orlando
Southwest Logo
5:55 am - 4:45 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 50m2 stops Baltimore/Washington Orlando
$306Southwest
Mon, Sep 14 - Sat, Sep 19
American Airlines Logo
6:50 am - 11:59 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
17h 09m1 stop Charlotte Douglas
American Airlines Logo
7:30 am - 6:02 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
10h 32m1 stop Charlotte Douglas
$309American Airlines
Fri, Aug 28 - Tue, Sep 8
JetBlue Logo
7:00 am - 11:40 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
4h 40mnonstop
JetBlue Logo
1:15 pm - 5:49 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
4h 34mnonstop
$314JetBlue
Sat, Sep 5 - Sat, Sep 12
Frontier Logo
11:36 am - 12:43 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
37h 07m2 stops Atlanta Hartsfield-Jackson Miami
Frontier Logo
8:57 pm - 9:23 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
12h 26m1 stop Orlando
$314Frontier
Wed, Aug 19 - Mon, Aug 24
Frontier Logo
11:36 am - 12:43 amBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
37h 07m2 stops Atlanta Hartsfield-Jackson Miami
Frontier Logo
8:57 pm - 9:23 amSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
12h 26m1 stop Orlando
$315Frontier
Wed, Aug 19 - Mon, Aug 24
JetBlue Logo
8:00 am - 12:39 pmBUF  Buffalo-SJU San Juan Luis Munoz Marin Intl
4h 39mnonstop
JetBlue Logo
6:15 pm - 10:50 pmSJU  San Juan Luis Munoz Marin Intl-BUF Buffalo
4h 35mnonstop
$320JetBlue
Mon, Oct 19 - Sat, Oct 24

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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
Sep 5
BUF7:00 amBuffalo
4h 40m
SJU11:40 amSan Juan Luis Munoz Marin Intl
Sep 12
SJU1:15 pmSan Juan Luis Munoz Marin Intl
4h 34m
BUF5:49 pmBuffalo
$314
JetBlue
Aug 29
BUF7:00 amBuffalo
4h 40m
SJU11:40 amSan Juan Luis Munoz Marin Intl
Sep 2
SJU6:19 pmSan Juan Luis Munoz Marin Intl
4h 38m
BUF10:57 pmBuffalo
$320
JetBlue
Aug 28
BUF7:00 amBuffalo
4h 38m
SJU11:38 amSan Juan Luis Munoz Marin Intl
Aug 31
SJU9:42 amSan Juan Luis Munoz Marin Intl
9h 44m
1 stop
BUF7:26 pmBuffalo
$325

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
Aug 22
BUF1:03 pmBuffalo
10h 40m
2 stops
SJU11:43 pmSan Juan Luis Munoz Marin Intl
Aug 26
SJU10:33 amSan Juan Luis Munoz Marin Intl
13h 03m
2 stops
BUF11:36 pmBuffalo
$316
American Airlines
Aug 28
BUF11:59 amBuffalo
12h 00m
2 stops
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Sep 8
SJU6:00 amSan Juan Luis Munoz Marin Intl
11h 08m
2 stops
BUF5:08 pmBuffalo
$319
American Airlines
Aug 19
BUF10:26 amBuffalo
11h 29m
2 stops
SJU9:55 pmSan Juan Luis Munoz Marin Intl
Sep 2
SJU2:33 pmSan Juan Luis Munoz Marin Intl
9h 03m
2 stops
BUF11:36 pmBuffalo
$321

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 August 7, 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

Cheapest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 11/3

6:30 am-9:24 pm

2 stops13h 54m

San Juan Luis Munoz Marin Intl

Fri 11/6

2:05 am-10:08 am

1 stop9h 03m

$292

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Tue 9/22

6:00 am-1:53 pm

1 stop7h 53m

San Juan Luis Munoz Marin Intl

Thu 9/24

4:55 pm-11:50 pm

1 stop6h 55m

$295

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 11/6

7:42 pm-1:03 pm

1 stop16h 21m

San Juan Luis Munoz Marin Intl

Wed 11/18

6:28 am-3:50 pm

1 stop10h 22m

$296

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 11/6

5:30 pm-1:05 am

1 stop6h 35m

San Juan Luis Munoz Marin Intl

Tue 11/10

6:40 am-12:05 pm

1 stop6h 25m

$306

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 9/14

4:35 pm-11:55 pm

1 stop7h 20m

San Juan Luis Munoz Marin Intl

Sat 9/19

5:55 am-4:45 pm

2 stops10h 50m

$306

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Fri 8/28

6:50 am-11:59 pm

1 stop17h 09m

San Juan Luis Munoz Marin Intl

Tue 9/8

7:30 am-6:02 pm

1 stop10h 32m

$309
Quickest round-trip

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Sat 9/5

7:00 am-11:40 am

Nonstop4h 40m

San Juan Luis Munoz Marin Intl

Sat 9/12

1:15 pm-5:49 pm

Nonstop4h 34m

$314

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 8/19

11:36 am-12:43 am

2 stops37h 07m

San Juan Luis Munoz Marin Intl

Mon 8/24

8:57 pm-9:23 am

1 stop12h 26m

$314

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Wed 8/19

11:36 am-12:43 am

2 stops37h 07m

San Juan Luis Munoz Marin Intl

Mon 8/24

8:57 pm-9:23 am

1 stop12h 26m

$315

BuffaloSan Juan

BUF Buffalo - SJU San Juan Luis Munoz Marin Intl

BUFSJU

Buffalo

Mon 10/19

8:00 am-12:39 pm

Nonstop4h 39m

San Juan Luis Munoz Marin Intl

Sat 10/24

6:15 pm-10:50 pm

Nonstop4h 35m

$320

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 $328 to $434.
The lowest price recently found on this route was $292.

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 March, then flying in April 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 Friday. momondo users have found tickets for Friday departures for as low as $387. 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 $487.

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 $341 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 37% 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 August 2026, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 15% 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

$204

Fastest flight time

3h 15m

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 $204. 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 $397.
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 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
8,502 reviews
Search Delta flights
FrontierPriceFrom $125Free CancellationRating
5.6
2,722 reviews
Search Frontier flights
JetBluePriceFrom $211Free CancellationRating
7.1
3,024 reviews
Search JetBlue flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
10,084 reviews
Search United Airlines flights
SouthwestPriceFrom $225Free CancellationRating
8.0
4,217 reviews
Search Southwest flights
American AirlinesPriceFrom $231Free CancellationRating
7.1
11,877 reviews
Search American Airlines flights

  • JetBlue Flights From Buffalo to San Juan Luis Munoz Marin Intl Airport

    The lowest priced JetBlue flight from Buffalo to San Juan Luis Munoz Marin Intl Airport from the last 72 hours was $211. Generally, JetBlue has 1 flight on this route every week with an average price of $371. JetBlue is rated 7.1/10 by our users.

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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