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Puerto Rico

$164+ Cheap flights from Boston (BOS) to Puerto Rico

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJU
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
1 adult, Economy
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Cheap flight deals from Boston to Puerto Rico

Cheapest flights from Boston to Puerto Rico
Explore the most affordable flight options available from Boston to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2026.

This Priceline deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:20 pm
BOS
-
SJU
Nonstop4h 38m
Multiple Airlines
Wed 10/286:42 pm
SJU
-
BOS
1 stop14h 34m
Multiple Airlines
Deal found 6/30$307
This Expedia deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/512:42 pm
BOS
-
SJU
2 stops12h 09m
JetBlue
Tue 9/81:50 pm
SJU
-
BOS
Nonstop4h 07m
JetBlue
Deal found 6/29$308
This Cheapflightsfares deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:40 am
BOS
-
SJU
1 stop7h 41m
JetBlue
Sun 10/256:00 am
SJU
-
BOS
Nonstop4h 09m
JetBlue
Deal found 6/30$309
This CheapOair deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:20 pm
BOS
-
SJU
Nonstop4h 38m
JetBlue
Mon 9/219:30 am
SJU
-
BOS
1 stop24h 33m
JetBlue
Deal found 6/29$310
This Cheapflightsfares deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:20 pm
BOS
-
SJU
Nonstop4h 38m
JetBlue
Sat 9/262:32 pm
SJU
-
BOS
1 stop7h 18m
JetBlue
Deal found 6/30$311
This eDestinos deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2210:04 am
BOS
-
SJU
1 stop21h 53m
Frontier
Sat 8/18:37 pm
SJU
-
BOS
1 stop12h 32m
Frontier
Deal found 6/29$312
This Cheapflightsfares deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:20 pm
BOS
-
SJU
Nonstop4h 38m
JetBlue
Wed 10/282:50 pm
SJU
-
BOS
1 stop9h 29m
JetBlue
Deal found 6/30$314
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/810:50 am
BOS
-
SJU
2 stops10h 15m
Southwest
Fri 9/1110:00 am
SJU
-
BOS
2 stops9h 40m
Southwest
Deal found 6/30$316
This SmartFares deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:50 pm
BOS
-
SJU
Nonstop4h 04m
JetBlue
Wed 8/266:00 am
SJU
-
BOS
1 stop6h 51m
JetBlue
Deal found 6/27$318
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:30 am
BOS
-
SJU
1 stop11h 08m
Delta
Wed 9/95:59 pm
SJU
-
BOS
1 stop7h 18m
Delta
Deal found 7/1$319
This Cheapflightsfares deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:00 am
BOS
-
SJU
1 stop7h 49m
JetBlue
Sat 10/246:12 am
SJU
-
BOS
Nonstop4h 03m
JetBlue
Deal found 6/30$321
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:35 pm
BOS
-
BQN
1 stop7h 22m
United Airlines
Tue 11/31:09 am
BQN
-
BOS
2 stops13h 46m
United Airlines
Deal found 6/29$332

Find flight deals from Boston to Puerto Rico

Keep the following information in mind while searching for Boston to Puerto Rico flight deals. Data was last updated July 1, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$307
(Priceline)

One-way from

$164
(Cheapflightsfares)

Popular in

June

Cheapest in

January

Average price

$417

Good round-trip deal

$404 or less

Good one-way deal

$233 or less
Provider with most accurate pricing for Boston Logan Intl-Puerto Rico flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Puerto Rico flights.
Search Deals
From Boston Logan Intl to Puerto Rico
Search Deals
One-way flight from Boston Logan Intl to Puerto Rico
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Puerto Rico.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Puerto Rico.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
Use the filters below to find and compare flights from Boston to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sat 9/19

6:50 am-4:49 pm

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Mon 9/21

2:10 pm-6:23 pm

Nonstop4h 13m

$328

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Fri 8/28

8:50 am-12:57 pm

Nonstop4h 07m

San Juan Luis Munoz Marin Intl

Tue 9/1

2:59 pm-1:25 am

1 stop10h 26m

$328

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Thu 9/3

8:50 am-12:57 pm

Nonstop4h 07m

San Juan Luis Munoz Marin Intl

Thu 9/10

1:16 pm-11:10 pm

1 stop9h 54m

$328

BostonAguadilla

BOS - BQN

BOSBQN

Boston Logan Intl

Tue 7/28

7:19 am-11:09 pm

2 stops15h 50m

Aguadilla Borinquen

Mon 8/3

12:15 am-10:20 am

2 stops10h 05m

$332

BostonAguadilla

BOS - BQN

BOSBQN

Boston Logan Intl

Tue 8/11

8:00 am-11:09 pm

2 stops15h 09m

Aguadilla Borinquen

Thu 8/20

12:15 am-8:17 am

1 stop8h 02m

$332

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Fri 9/11

12:20 pm-10:19 pm

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Mon 9/14

5:59 pm-1:17 am

1 stop7h 18m

$332

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 8/18

1:55 pm-10:29 pm

1 stop8h 34m

San Juan Luis Munoz Marin Intl

Tue 8/25

7:30 am-4:13 pm

1 stop8h 43m

$332

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Thu 9/3

6:05 am-4:33 pm

1 stop10h 28m

San Juan Luis Munoz Marin Intl

Sun 9/6

7:30 am-4:13 pm

1 stop8h 43m

$332

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 9/20

6:50 am-4:49 pm

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Fri 9/25

2:59 pm-11:31 pm

1 stop8h 32m

$332

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Fri 9/11

6:50 am-4:49 pm

1 stop9h 59m

San Juan Luis Munoz Marin Intl

Sun 9/13

7:30 am-2:42 pm

1 stop7h 12m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 60 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Boston-Puerto Rico flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Boston-Puerto Rico flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Boston-Puerto Rico flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Puerto Rico flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Puerto Rico flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Puerto Rico

Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Puerto Rico

What is the cheapest month to book a flight from Boston to Puerto Rico?

Currently, March is the cheapest month in which you can book a flight from Boston to Puerto Rico (average of $271). Flying from Boston to Puerto Rico in December is currently the most expensive (average of $441). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to PR?

Find hourly flight availability from Boston to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2026.

One of the essential ways to save on airfare from Boston to Puerto Rico is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 11% on airfare.

How often are flights from Boston to Puerto Rico delayed?

About 25% of weekly flights between Boston and Puerto Rico have experienced delays in the past year, with the average delay time being 151 minutes.

What is the most punctual flight time for Boston to Puerto Rico flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Tuesday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Boston to Puerto Rico flights?

Over the last year, Delta have had the lowest number of delays on this route, with just 18% of flights being delayed.

How far ahead should I book a flight from Boston to Puerto Rico?

To ensure you get the cheapest price possible for a flight from Boston to Puerto Rico, you should look to book at least 67 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from Boston to Puerto Rico?

Use this chart to determine the cheapest time to fly round-trip from Boston to Puerto Rico. Price data was last updated on June 27, 2026.

Travelers seeking maximum savings on their Boston to Puerto Rico flight should consider departing on Wednesday evenings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Puerto Rico

Get insights into the airlines that provide service to Puerto Rico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Puerto Rico. Reviews last updated July 1, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Boston to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Delta
7.8
Good
8,454 reviews
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
United Airlines
7.4
Good
9,910 reviews
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
American Airlines
7.1
Good
11,766 reviews
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
JetBlue
7.1
Good
3,012 reviews
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours
Frontier
5.6
Fair
2,848 reviews
Delta
7.8
Good
8,454 reviews

Entertainment

7.8

Overall

7.8

Food

7.2

Comfort

7.8

Boarding

8.1

Crew

8.5

Reviews

1 / 20
6.0
Good

Cidalia,Aug 2023

BOS - MIA

I like Delta overall but the delays lately without justification are not leaving a good impression. Both flights were delayed for over 2 hours

Related info for your journey

Find useful and relevant information for your journey from Boston to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Puerto Rico?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Puerto Rico. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from Boston to Puerto Rico?

    Departing from Boston to Puerto Rico will take you 9h 59m. The distance from Boston to Puerto Rico is about 1678 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to Puerto Rico one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $59. JetBlue flights start at $101 while deals on Delta start at $115 one-way.

  • What are the most popular routes from Boston to Puerto Rico?

    While some choose either Boston Logan Intl - Ponce Mercedita or Boston Logan Intl - Aguadilla Borinquen, Boston Logan Intl - San Juan Luis Munoz Marin Intl is the most popular route from Boston to Puerto Rico.

  • What are the most reliable airlines from Boston to Puerto Rico?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Boston to Puerto Rico on time: Delta (89%), Aer Lingus (82%), Japan Airlines (82%).

  • What are the cheapest flights from Boston to Puerto Rico?

    On average you can expect to pay $870 for a flight from Boston to Puerto Rico. The cheapest flight overall is $162 while the most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl) is currently priced at $249.

  • Can I find deals for flights from Boston to Puerto Rico that include hotel bookings?

    Yes. In addition to deals on Boston to Puerto Rico flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Puerto Rico?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Puerto Rico.

  • Can I find deals for business class flights from Boston to Puerto Rico?

    Yes. Cheapflights offers flight deals from Boston to Puerto Rico by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Puerto Rico?

    Currently, March is the cheapest month in which you can book a flight from Boston to Puerto Rico (average of $271). Flying from Boston to Puerto Rico in December is currently the most expensive (average of $441). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from Boston to Puerto Rico

Discover the top 6 airlines that operate flights from Boston to Puerto Rico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$85Average$283FlexibilityNo cancel feeOn-time62%
DeltaCheapest$147Average$375FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$161Average$530FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$211Average$406FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$242Average$442FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$313Average$399FlexibilityNo cancel feeOn-time63%

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