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$117+ Cheap flights from San Juan to Boston (BOS)

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 11/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Boston Logan Intl are usually found in February or January, booked 66 days in advance, depart on a Saturday or Friday and return on a Monday

Find flight deals from San Juan to Boston

Cheapest flights from San Juan to Boston
Explore the most affordable flight options available from San Juan to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/3. 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.
Thu 11/2011:55 amSJU - BOS
1 stop12h 58mSpirit Airlines
Mon 11/245:45 amBOS - SJU
1 stop13h 42mSpirit Airlines
Deal found 11/3$201
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:42 amSJU - BOS
2 stops24h 40mMultiple Airlines
Sat 12/68:11 pmBOS - SJU
1 stop13h 22mMultiple Airlines
Deal found 11/2$205
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/263:15 pmSJU - BOS
Nonstop4h 24mSpirit Airlines
Thu 1/811:13 amBOS - SJU
Nonstop3h 54mSpirit Airlines
Deal found 11/2$207
This Mytrip deal was found by Cheapflights users on 11/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amSJU - BOS
Nonstop4h 23mFrontier
Wed 12/3111:09 amBOS - SJU
1 stop11h 45mFrontier
Deal found 11/2$209
This Frontier deal was found by Cheapflights users on 11/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amSJU - BOS
Nonstop4h 23mFrontier
Thu 1/16:00 amBOS - SJU
1 stop8h 01mFrontier
Deal found 11/2$210
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/54:10 amSJU - BOS
2 stops15h 56mSpirit Airlines
Wed 12/108:11 pmBOS - SJU
1 stop13h 22mSpirit Airlines
Deal found 11/2$211
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:00 amSJU - BOS
2 stops9h 48mAmerican Airlines
Wed 11/126:10 pmBOS - SJU
1 stop15h 07mAmerican Airlines
Deal found 11/2$214
This American Airlines deal was found by Cheapflights users on 11/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:05 pmSJU - BOS
1 stop6h 43mAmerican Airlines
Sun 12/76:00 amBOS - SJU
2 stops8h 40mAmerican Airlines
Deal found 11/2$215
This Cheapflightsfares deal was found by Cheapflights users on 11/2. 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 12/86:14 pmSJU - BOS
1 stop6h 42mSpirit Airlines
Thu 12/118:11 pmBOS - SJU
1 stop13h 22mSpirit Airlines
Deal found 11/2$216
This CheapOair deal was found by Cheapflights users on 11/3. 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.
Sun 12/214:10 amSJU - BOS
1 stop7h 40mSpirit Airlines
Thu 1/112:29 pmBOS - SJU
1 stop12h 43mSpirit Airlines
Deal found 11/3$217
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/133:37 pmSJU - BOS
1 stop9h 22mSpirit Airlines
Sun 11/166:16 amBOS - SJU
1 stop10h 03mSpirit Airlines
Deal found 11/2$221

Cheap flight deals from San Juan to Boston

Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Boston (BOS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 4, 2025.

Round-trip from

$201
(Cheapflightsfares)

One-way from

$117
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$268
From San Juan to Boston Logan Intl
Search Deals
One-way flight from San Juan to Boston Logan Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Juan to Boston 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 November 4, 2025.
Use the filters below to find and compare flights from San Juan to Boston that are best for you.

Fly from

San Juan

Fly to

Boston

Route

Depart

Return

Price

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 2/11

6:15 am-9:25 am

Nonstop4h 10m

Boston Logan Intl

Tue 2/17

8:50 pm-1:50 am

Nonstop4h 00m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 12/4

2:20 pm-5:45 pm

Nonstop4h 25m

Boston Logan Intl

Mon 12/8

8:10 am-1:10 pm

Nonstop4h 00m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 2/11

6:15 am-9:25 am

Nonstop4h 10m

Boston Logan Intl

Wed 2/18

8:50 pm-1:50 am

Nonstop4h 00m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 11/14

2:27 pm-5:50 pm

Nonstop4h 23m

Boston Logan Intl

Sun 11/16

8:10 am-1:17 pm

Nonstop4h 07m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 3/4

2:25 pm-5:38 pm

Nonstop4h 13m

Boston Logan Intl

Tue 3/10

7:55 pm-11:58 pm

Nonstop4h 03m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 2/12

1:00 pm-4:13 pm

Nonstop4h 13m

Boston Logan Intl

Tue 2/17

8:50 pm-1:50 am

Nonstop4h 00m

$262

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 2/19

8:10 am-2:12 pm

1 stop7h 02m

Boston Logan Intl

Sun 2/22

9:45 am-9:00 pm

1 stop10h 15m

$271

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 5/1

4:55 pm-11:17 pm

1 stop6h 22m

Boston Logan Intl

Mon 5/11

7:30 am-1:45 pm

1 stop6h 15m

$281

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 12/25

4:48 pm-11:14 pm

1 stop7h 26m

$124

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 11/25

6:07 am-9:16 am

Nonstop4h 09m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 19 results
1
2

Best time to book a flight from San Juan to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from San Juan 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 San Juan to Boston

How far ahead should I book a flight from San Juan to Boston?

Use this chart to determine the optimal time to book a round-trip flight from San Juan to Boston. Price data was last updated on October 31, 2025.

The price you pay for your flight from San Juan to Boston may vary depending on when you book. For the best chance of a lower fare, look to book 66 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from San Juan to Boston?

Currently, February is the cheapest month in which you can book a flight from San Juan to Boston (average of $56). Flying from San Juan to Boston in July is currently the most expensive (average of $137). 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 SJU to BOS?

Find hourly flight availability from San Juan to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2025.

When flying from San Juan to Boston, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 39% versus a flight in the afternoon.

What is the cheapest day to fly from San Juan to Boston?

Use this chart to determine the cheapest time to fly round-trip from San Juan to Boston. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Juan to Boston flight should consider departing on Saturday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Juan to Boston

Explore weekly flight availability from San Juan to Boston. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 4, 2025.

The most flights from PR1 to BOS are scheduled on a Monday (17 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost to fly round-trip from San Juan to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated November 4, 2025.
See what other customers who have flown with Delta, JetBlue, and Spirit Airlines from San Juan to Boston have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,002 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,002 reviews
Delta
7.9
Good
8,002 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,907 reviews
Delta
7.9
Good
8,002 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,110 reviews
Delta
7.9
Good
8,002 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Frontier
5.8
Fair
3,116 reviews
Delta
7.9
Good
8,002 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Crew

8.5

Boarding

8.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from San Juan to Boston. 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 into for flights to Boston from San Juan?

    For a flight from San Juan to Boston, you will be flying into Logan Intl. Boston Logan Intl (BOS) is just 2.6 mi from the center of the city. Logan Intl is the only Boston airport and it handles 13 inbound flights from San Juan per day. 4 airlines have flights to Boston Logan Intl from San Juan on a regular basis.

  • How long is the flight from San Juan to Boston?

    There are many flights that can get you from San Juan to Boston in 4h 10m. Fly via JetBlue or Delta to get the fastest option. The distance between San Juan and Boston is about 1678 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from San Juan to Boston round-trip?

    Our cheapest airline available from San Juan to Boston is Spirit Airlines. Our recent data shows that you can find tickets from as low as $76 on this airline. Additional options worth looking into are Frontier and Delta, starting at $86 and $141 round-trip. Spirit Airlines is 69% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from San Juan to Boston one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $124. However, be on the lookout for offers from JetBlue and Southwest, as they are both options that can get you from San Juan to Boston for a low price.

  • What are the most reliable airlines from San Juan to Boston?

    The top 3 most reliable airlines when flying from San Juan to Boston are Japan Airlines (100%), Etihad Airways (100%) and Aer Lingus (92%).

  • What are the cheapest flights from San Juan to Boston?

    The cheapest flight price from San Juan to Boston is $141. On average you can expect to pay $290. The most popular route, (San Juan Luis Munoz Marin Intl - Boston Logan Intl), can usually be booked for $150.

  • Can I find deals for flights from San Juan to Boston that include hotel bookings?

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

  • How can I find direct flights from San Juan to Boston?

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

  • Can I find deals for business class flights from San Juan to Boston?

    Yes. Cheapflights offers flight deals from San Juan to Boston 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 San Juan to Boston?

    Currently, February is the cheapest month in which you can book a flight from San Juan to Boston (average of $56). Flying from San Juan to Boston in July is currently the most expensive (average of $137). 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

Traveling to a place near Boston?

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Top 4 airlines flying from San Juan to Boston

Discover the top 4 airlines that operate flights from San Juan to Boston. 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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$76Average$219FlexibilityNo cancel feeOn-time65%
FrontierCheapest$86Average$151FlexibilityNo cancel feeOn-time62%
DeltaCheapest$141Average$284FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$181Average$315FlexibilityNo cancel feeOn-time62%

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