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Cheap flights from Buffalo to Puerto Rico from $144

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 Puerto Rico departing on 8/18. 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

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Find the cheapest flights from Buffalo to Puerto Rico

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
10:26 am - 10:24 pm
BUF
-
SJU
11h 58m
2 stops
American Airlines Logo
7:03 am - 2:56 pm
SJU
-
BUF
7h 53m
1 stop
$295American Airlines
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
11:25 am - 10:10 pm
BUF
-
SJU
10h 45m
2 stops
Southwest Logo
5:35 am - 1:20 pm
SJU
-
BUF
7h 45m
1 stop
$306Southwest
Fri, Sep 25 - Wed, Oct 21
JetBlue Logo
7:00 am - 11:38 am
BUF
-
SJU
4h 38mnonstop
JetBlue Logo
6:29 pm - 11:07 pm
SJU
-
BUF
4h 38mnonstop
$307JetBlue
Fri, Aug 7 - Fri, Aug 14
United Airlines Logo
7:00 am - 8:38 pm
BUF
-
SJU
13h 38m
2 stops
United Airlines Logo
1:00 am - 2:23 pm
SJU
-
BUF
13h 23m
2 stops
$314United Airlines
Wed, Oct 7 - Tue, Oct 13
JetBlue Logo
8:00 am - 12:33 pm
BUF
-
SJU
4h 33mnonstop
JetBlue Logo
6:15 pm - 10:50 pm
SJU
-
BUF
4h 35mnonstop
$315JetBlue
Mon, Oct 5 - Fri, Oct 16
Southwest Logo
3:45 pm - 11:50 pm
BUF
-
SJU
8h 05m
2 stops
Southwest Logo
5:35 am - 2:50 pm
SJU
-
BUF
9h 15m
2 stops
$322Southwest
Sat, Oct 10 - Tue, Oct 13
Delta Logo
6:05 am - 4:38 pm
BUF
-
SJU
10h 33m
1 stop
Delta Logo
3:10 pm - 10:36 pm
SJU
-
BUF
7h 26m
1 stop
$324Delta
Sun, Sep 6 - Sat, Sep 12
Multiple Airlines Logo
7:40 am - 10:13 pm
BUF
-
SJU
14h 33m
1 stop
Multiple Airlines Logo
4:39 pm - 9:48 am
SJU
-
BUF
17h 09m
1 stop
$325Multiple Airlines
Tue, Oct 13 - Wed, Oct 21
Frontier Logo
9:29 pm - 11:06 am
BUF
-
SJU
13h 37m
1 stop
Frontier Logo
8:57 pm - 9:23 am
SJU
-
BUF
12h 26m
1 stop
$331Frontier
Tue, Sep 1 - Wed, Sep 2
Frontier Logo
7:57 pm - 11:04 am
BUF
-
BQN
15h 07m
1 stop
Frontier Logo
3:10 am - 7:06 pm
BQN
-
BUF
15h 56m
1 stop
$336Frontier
Wed, Jul 22 - Tue, Jul 28

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American Airlines flights from Buffalo to Puerto Rico

Our best American Airlines deals on Buffalo to Puerto Rico flight tickets
American Airlines
Sep 1
BUF6:14 amBuffalo
12h 19m
2 stops
SJU6:33 pmSan Juan Luis Munoz Marin Intl
Sep 5
SJU7:03 amSan Juan Luis Munoz Marin Intl
14h 53m
2 stops
BUF9:56 pmBuffalo
$295
American Airlines
Aug 28
BUF6:50 amBuffalo
17h 09m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
Aug 31
SJU7:30 amSan Juan Luis Munoz Marin Intl
10h 32m
1 stop
BUF6:02 pmBuffalo
$335
American Airlines
Aug 19
BUF5:00 amBuffalo
11h 11m
2 stops
SJU4:11 pmSan Juan Luis Munoz Marin Intl
Aug 25
SJU7:30 amSan Juan Luis Munoz Marin Intl
9h 59m
2 stops
BUF5:29 pmBuffalo
$340

Southwest flights from Buffalo to Puerto Rico

Our best Southwest deals on Buffalo to Puerto Rico flight tickets
Southwest
Sep 25
BUF11:25 amBuffalo
10h 45m
2 stops
SJU10:10 pmSan Juan Luis Munoz Marin Intl
Oct 21
SJU5:35 amSan Juan Luis Munoz Marin Intl
7h 45m
1 stop
BUF1:20 pmBuffalo
$306
Southwest
Oct 10
BUF3:45 pmBuffalo
8h 05m
2 stops
SJU11:50 pmSan Juan Luis Munoz Marin Intl
Oct 13
SJU5:35 amSan Juan Luis Munoz Marin Intl
9h 15m
2 stops
BUF2:50 pmBuffalo
$322
Southwest
Nov 7
BUF11:00 amBuffalo
10h 55m
2 stops
SJU10:55 pmSan Juan Luis Munoz Marin Intl
Nov 11
SJU2:25 pmSan Juan Luis Munoz Marin Intl
8h 25m
1 stop
BUF9:50 pmBuffalo
$326

momondo Fare Finder

 
Customize your flight search to find flights from Buffalo to Puerto Rico 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 June 23, 2026.
Use the filters below to find and compare flights from Buffalo to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 9/1

10:26 am-10:24 pm

2 stops11h 58m

San Juan Luis Munoz Marin Intl

Sat 9/5

7:03 am-2:56 pm

1 stop7h 53m

$295

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 9/25

11:25 am-10:10 pm

2 stops10h 45m

San Juan Luis Munoz Marin Intl

Wed 10/21

5:35 am-1:20 pm

1 stop7h 45m

$306

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Fri 8/7

7:00 am-11:38 am

Nonstop4h 38m

San Juan Luis Munoz Marin Intl

Fri 8/14

6:29 pm-11:07 pm

Nonstop4h 38m

$307

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Wed 10/7

7:00 am-8:38 pm

2 stops13h 38m

San Juan Luis Munoz Marin Intl

Tue 10/13

1:00 am-2:23 pm

2 stops13h 23m

$314
Quickest round-trip

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Mon 10/5

8:00 am-12:33 pm

Nonstop4h 33m

San Juan Luis Munoz Marin Intl

Fri 10/16

6:15 pm-10:50 pm

Nonstop4h 35m

$315

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sat 10/10

3:45 pm-11:50 pm

2 stops8h 05m

San Juan Luis Munoz Marin Intl

Tue 10/13

5:35 am-2:50 pm

2 stops9h 15m

$322

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Sun 9/6

6:05 am-4:38 pm

1 stop10h 33m

San Juan Luis Munoz Marin Intl

Sat 9/12

3:10 pm-10:36 pm

1 stop7h 26m

$324

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 10/13

7:40 am-10:13 pm

1 stop14h 33m

San Juan Luis Munoz Marin Intl

Wed 10/21

4:39 pm-9:48 am

1 stop17h 09m

$325

BuffaloSan Juan

BUF - SJU

BUFSJU

Buffalo

Tue 9/1

9:29 pm-11:06 am

1 stop13h 37m

San Juan Luis Munoz Marin Intl

Wed 9/2

8:57 pm-9:23 am

1 stop12h 26m

$331

BuffaloAguadilla

BUF - BQN

BUFBQN

Buffalo

Wed 7/22

7:57 pm-11:04 am

1 stop15h 07m

Aguadilla Borinquen

Tue 7/28

3:10 am-7:06 pm

1 stop15h 56m

$336

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 Puerto Rico from

How to get the cheapest flight ticket from Buffalo to Puerto Rico

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 cheapest month to fly to Puerto Rico?

If you don’t want to visit Puerto Rico in April, then you should wait until December to fly from Buffalo, when ticket prices are also cheap, with an average price of $103.

What is the cheapest day to depart on your flight to Puerto Rico?

On average, the least expensive day to fly to Puerto Rico from Buffalo is on a Friday. momondo users have found tickets for Friday departures for as low as $364. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Puerto Rico is Saturday, with ticket prices averaging around $453.

What is the cheapest Buffalo to Puerto Rico flight route?

Fly from Buffalo to San Juan Luis Munoz Marin Intl for the best Buffalo - Puerto Rico flight prices

How far in advance should I book a flight from Buffalo to Puerto Rico?

You are more likely to see cheaper flights to Puerto Rico from Buffalo when booking weeks ahead of your departure date. In general, you can expect to find flights to Puerto Rico for around $379 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Puerto Rico from Buffalo for as low as $341 on momondo.

What cabin class options are available on Buffalo to Puerto Rico flights?

There are 2 cabin classes available to choose from on Buffalo to Puerto Rico 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 Puerto Rico flights?

You could potentially save up to 35% on your flight if you consider stops on a Buffalo to Puerto Rico flight.

Cheap Buffalo to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to Puerto Rico

Best Price Found

$158

Fastest flight time

3h 54m

Direct flights

Tue, Thu, Sat and Sun

Airports in Puerto Rico

20 airports
The best one-way flight to Puerto Rico from Buffalo in the past 72 hours is $158. The best round-trip flight deal from Buffalo to Puerto Rico found on momondo in the last 72 hours is $340.
The fastest flight from Buffalo to Puerto Rico takes 3h 54m
Direct flights go from Buffalo to Puerto Rico on Tuesday, Thursday, Saturday and Sunday. The only airline offering direct flights is JetBlue.
There are 20 airports in Puerto Rico. From Buffalo there are direct flights to San Juan Luis Munoz Marin Intl (SJU).
Search flight deals

Frequently asked questions about flying from Buffalo to Puerto Rico

  • When did momondo last update prices for flights from Buffalo Airport to Puerto Rico?

    Prices for flights from Buffalo Airport to Puerto Rico were last updated today.

  • How many operators does momondo search for flights from Buffalo Airport to Puerto Rico?

  • How old do you have to be to fly from Buffalo Airport to Puerto Rico?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Buffalo Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The travel and health documents required for your trip to Puerto Rico can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Puerto Rico. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Buffalo to Puerto Rico?

Best airlines flying from Buffalo to Puerto Rico

Compare and see reviews for airlines that fly from Buffalo to Puerto Rico with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $106Free CancellationRating
7.8
8,429 reviews
Search Delta flights
FrontierPriceFrom $129Free CancellationRating
5.6
2,869 reviews
Search Frontier flights
JetBluePriceFrom $208Free CancellationRating
7.1
3,002 reviews
Search JetBlue flights
United AirlinesPriceFrom $211Free CancellationRating
7.4
9,879 reviews
Search United Airlines flights
SouthwestPriceFrom $225Free CancellationRating
7.9
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $231Free CancellationRating
7.1
11,748 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to Puerto Rico?

Finding the right flight to Puerto Rico from Buffalo is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Puerto Rico quick and easy, saving you time and money.

Can I find flights from Buffalo to Puerto Rico with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Puerto Rico from Buffalo with this policy.

How can momondo help me find flights from Buffalo to Puerto Rico?

Once you have performed a search for Buffalo to Puerto Rico 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 Puerto Rico right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Puerto Rico from Buffalo. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Puerto Rico trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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