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$101+ 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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan to Boston Logan Intl are usually found in September or January, booked 40 days in advance, depart on a Friday or Saturday and return on a Monday

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 July 31, 2025.

Round-trip from

$195
(Expedia)

One-way from

$100
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$283
From San Juan to Boston Logan Intl
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One-way flight from San Juan to Boston Logan Intl
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Highest demand for flights based on searches. 20% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 31, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1510:16 pmSJU - BOS
1 stop16h 14mSpirit Airlines
Mon 8/183:37 pmBOS - SJU
1 stop8h 20mSpirit Airlines
Deal found 7/29$195
This OneTravel deal was found by Cheapflights users on 7/31. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/306:55 pmSJU - BOS
1 stop15h 44mMultiple Airlines
Sat 9/612:20 pmBOS - SJU
1 stop8h 36mMultiple Airlines
Deal found 7/31$209
This Trip.com deal was found by Cheapflights users on 7/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/88:25 amSJU - BOS
Nonstop4h 09mJetBlue
Mon 8/118:45 pmBOS - SJU
Nonstop4h 04mJetBlue
Deal found 7/30$228
This American Airlines deal was found by Cheapflights users on 7/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:30 amSJU - BOS
1 stop9h 51mAmerican Airlines
Mon 10/2011:05 amBOS - SJU
1 stop12h 54mAmerican Airlines
Deal found 7/30$253
This Delta deal was found by Cheapflights users on 7/31. 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.
Wed 10/151:32 pmSJU - BOS
Nonstop4h 13mDelta
Sat 10/188:15 amBOS - SJU
Nonstop4h 06mDelta
Deal found 7/31$254

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 July 31, 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

Fri 8/15

10:16 pm-2:30 pm

1 stop16h 14m

Boston Logan Intl

Mon 8/18

3:37 pm-11:57 pm

1 stop8h 20m

$195

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sat 8/30

6:55 pm-10:39 am

1 stop15h 44m

Boston Logan Intl

Sat 9/6

12:20 pm-8:56 pm

1 stop8h 36m

$209

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 8/8

8:25 am-12:34 pm

Nonstop4h 09m

Boston Logan Intl

Mon 8/11

8:45 pm-12:49 am

Nonstop4h 04m

$228

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 10/15

5:30 am-3:21 pm

1 stop9h 51m

Boston Logan Intl

Mon 10/20

11:05 am-11:59 pm

1 stop12h 54m

$253

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 10/15

1:32 pm-5:45 pm

Nonstop4h 13m

Boston Logan Intl

Sat 10/18

8:15 am-12:21 pm

Nonstop4h 06m

$254

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sun 8/3

3:13 pm-7:30 pm

Nonstop4h 17m

$101

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 8/12

6:00 am-10:07 am

Nonstop4h 07m

$123

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sat 8/16

4:56 pm-12:39 am

1 stop7h 43m

$126

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 10/29

1:50 pm-8:53 pm

1 stop7h 03m

$128

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sun 9/21

1:25 pm-5:30 pm

Nonstop4h 05m

$137

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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 July 25, 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 40 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, January is the cheapest month in which you can book a flight from San Juan to Boston (average of $218). Flying from San Juan to Boston in July is currently the most expensive (average of $311). 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 July 31, 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 evening, which can drop the price by up to 19% 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 July 31, 2025.

The most flights from PR1 to BOS are scheduled on a Thursday (31 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (9 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 July 31, 2025.
See what other customers who have flown with Southwest, Delta, and JetBlue 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.
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,246 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
JetBlue
7.3
Good
2,914 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,049 reviews
Southwest
8.0
Very good
4,246 reviews

Food

7.0

Entertainment

7.5

Boarding

8.1

Overall

8.0

Crew

8.6

Comfort

8.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 17 inbound flights from San Juan per day. 4 airlines have flights to Boston Logan Intl from San Juan on a regular basis.

  • 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 $195 on this airline. Additional options worth looking into are JetBlue and American Airlines, starting at $243 and $253 round-trip. Spirit Airlines is 11% 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 Spirit Airlines, with whom users have recently found tickets for as low as $100. 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 KLM (95%), Delta (93%) and WestJet (93%).

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

    The cheapest flight price from San Juan to Boston is $108. On average you can expect to pay $256. The most popular route, (San Juan Luis Munoz Marin Intl - Boston Logan Intl), can usually be booked for $178.

  • 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, January is the cheapest month in which you can book a flight from San Juan to Boston (average of $218). Flying from San Juan to Boston in July is currently the most expensive (average of $311). 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?

Book flights to Boston if you plan to visit one of these locations
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Medford
Watertown
Seabrook
Waltham
Framingham
Lowell
Randolph
Smithfield
Cranston
Chestnut Hill
Warwick
Peabody
Quincy
York Beach
Chelsea
Saco
Hampton Beach
Swansea
Lincoln

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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$137FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$86Average$221FlexibilityNo cancel feeOn-time65%
DeltaCheapest$129Average$282FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$133Average$292FlexibilityNo cancel feeOn-time62%

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