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$96+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
May 5 — May 121
Mon 5/5
Mon 5/12
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 87 days in advance, depart on a Friday or Saturday and return on a Tuesday

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 April 30, 2025.

Round-trip from

$171
(Cheapflightsfares)

One-way from

$96
(Cheapflightsfares)

Popular in

June

Cheapest in

September

Average price

$243
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. 12% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Thu 6/199:30 amSJU - BOS
Nonstop4h 07mSpirit Airlines
Sun 6/222:42 pmBOS - SJU
Nonstop3h 54mSpirit Airlines
Deal found 4/29$171
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Thu 5/156:30 amSJU - BOS
Nonstop4h 13mFrontier
Sun 5/1811:43 amBOS - SJU
Nonstop4h 01mFrontier
Deal found 4/29$194
This CheapOair deal was found by Cheapflights users on 4/29. 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.
Thu 5/156:30 amSJU - BOS
Nonstop4h 13mMultiple Airlines
Sun 5/189:46 amBOS - SJU
1 stop10h 16mMultiple Airlines
Deal found 4/29$221
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/253:55 pmSJU - BOS
1 stop8h 40mAmerican Airlines
Sun 9/285:58 amBOS - SJU
1 stop8h 47mAmerican Airlines
Deal found 4/29$223
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:27 pmSJU - BOS
Nonstop4h 12mDelta
Sun 9/148:10 amBOS - SJU
Nonstop4h 05mDelta
Deal found 4/29$224
This JetBlue deal was found by Cheapflights users on 4/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:30 amSJU - BOS
1 stop8h 36mJetBlue
Mon 9/2212:00 pmBOS - SJU
Nonstop4h 00mJetBlue
Deal found 4/29$268
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 9/171:05 amSJU - BOS
2 stops9h 30mUnited Airlines
Mon 9/223:16 pmBOS - SJU
1 stop8h 41mUnited Airlines
Deal found 4/29$313

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 April 30, 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

Thu 6/19

9:30 am-1:37 pm

Nonstop4h 07m

Boston Logan Intl

Sun 6/22

2:42 pm-6:36 pm

Nonstop3h 54m

$171

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 5/15

6:30 am-10:43 am

Nonstop4h 13m

Boston Logan Intl

Sun 5/18

11:43 am-3:44 pm

Nonstop4h 01m

$194

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 5/15

6:30 am-10:43 am

Nonstop4h 13m

Boston Logan Intl

Sun 5/18

9:46 am-8:02 pm

1 stop10h 16m

$221

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 9/25

3:55 pm-12:35 am

1 stop8h 40m

Boston Logan Intl

Sun 9/28

5:58 am-2:45 pm

1 stop8h 47m

$223

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 9/10

1:27 pm-5:39 pm

Nonstop4h 12m

Boston Logan Intl

Sun 9/14

8:10 am-12:15 pm

Nonstop4h 05m

$224

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 9/18

7:30 am-4:06 pm

1 stop8h 36m

Boston Logan Intl

Mon 9/22

12:00 pm-4:00 pm

Nonstop4h 00m

$268

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 9/17

1:05 am-10:35 am

2 stops9h 30m

Boston Logan Intl

Mon 9/22

3:16 pm-11:57 pm

1 stop8h 41m

$313

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Sun 5/18

6:30 am-10:43 am

Nonstop4h 13m

$96

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 5/30

1:39 pm-10:51 pm

1 stop9h 12m

$99

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 5/23

8:00 am-12:13 pm

Nonstop4h 13m

$162

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 15 results
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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 April 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 87 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 April 30, 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 26% 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 June 30, 2024.

Travelers seeking maximum savings on their San Juan to Boston flight should consider departing on Friday mornings 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 April 30, 2025.

The most flights from PR1 to BOS are scheduled on a Tuesday (22 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Boston by month

Plan your trip to Boston by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boston ranges from 3.1 - 4.0 inches per month. March is typically the wettest month, when rainfall can reach 4.0 in. July is typically the driest time to visit Boston when rainfall is around 3.1 in.

Temperature in Boston by month

Plan your trip to Boston by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boston, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 30.2 F).

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 April 30, 2025.
To help decide which airline to fly from San Juan to Boston, see what other customers have to say about Southwest, Delta and United Airlines. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
JetBlue
7.3
Good
2,922 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 6 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 $171 on this airline. Additional options worth looking into are Frontier and American Airlines, starting at $194 and $223 round-trip. Spirit Airlines is 19% 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 Frontier, with whom users have recently found tickets for as low as $96. However, be on the lookout for offers from Spirit Airlines and JetBlue, 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 Etihad Airways (88%), KLM (88%) and Qatar Airways (84%).

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

    The cheapest flight price from San Juan to Boston is $94. On average you can expect to pay $233. The most popular route, (San Juan Luis Munoz Marin Intl - Boston Logan Intl), can usually be booked for $171.

  • 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 San Juan?

Book flights to San Juan if you plan to visit one of these locations
Marlborough
Warwick
Cambridge
Waltham
Framingham
Chestnut Hill
Randolph
Brockton
Lowell
Woburn
Somerville
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Lincoln
Salem
Chelsea
Seabrook

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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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$64Average$194FlexibilityNo cancel feeOn-time65%
FrontierCheapest$69Average$138FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$132Average$273FlexibilityNo cancel feeOn-time62%
DeltaCheapest$134Average$272FlexibilityNo cancel feeOn-timeN/A

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