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$103+ Cheap flights from Luis Munoz Marin Intl (SJU) 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BOS
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to Boston Logan Intl are usually found in September or January, booked 28 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap flight deals from Luis Munoz Marin Intl to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) 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 June 12, 2025.

Round-trip from

$165
(SmartFares)

One-way from

$103
(FlightHub)

Popular in

June

Cheapest in

September

Average price

$284

Good round-trip deal

$205 or less

Good one-way deal

$157 or less
From San Juan Luis Munoz Marin Intl to Boston Logan Intl
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One-way flight from San Juan Luis Munoz Marin Intl to Boston Logan Intl
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Highest demand for flights based on searches. 16% potential increase in price ($43 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 June 2025
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Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Boston Logan Intl.
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Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Boston Logan Intl.
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Find flight deals from Luis Munoz Marin Intl to Boston

Cheapest flights from Luis Munoz Marin Intl to Boston
Explore the most affordable flight options available from Luis Munoz Marin Intl to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This SmartFares deal was found by Cheapflights users on 6/11. 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.
Thu 6/269:30 amSJU - BOS
Nonstop4h 07mSpirit Airlines
Sun 6/299:44 amBOS - SJU
1 stop11h 20mSpirit Airlines
Deal found 6/11$165
This Priceline deal was found by Cheapflights users on 6/10. 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 8/2712:59 amSJU - BOS
1 stop7h 43mFrontier
Sun 8/3110:36 amBOS - SJU
1 stop13h 18mFrontier
Deal found 6/10$183
This Priceline deal was found by Cheapflights users on 6/11. 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 7/212:59 amSJU - BOS
1 stop7h 07mMultiple Airlines
Tue 7/86:15 amBOS - SJU
1 stop13h 04mMultiple Airlines
Deal found 6/11$186
This Delta deal was found by Cheapflights users on 6/11. 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.
Thu 9/251:27 pmSJU - BOS
Nonstop4h 12mDelta
Tue 9/308:10 amBOS - SJU
Nonstop4h 05mDelta
Deal found 6/11$218
This JetBlue deal was found by Cheapflights users on 6/10. 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 6/266:00 amSJU - BOS
Nonstop4h 07mJetBlue
Sat 7/1210:10 amBOS - SJU
Nonstop4h 05mJetBlue
Deal found 6/10$226
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sat 11/12:05 amSJU - BOS
1 stop8h 09mUnited Airlines
Sun 11/96:00 amBOS - SJU
1 stop7h 40mUnited Airlines
Deal found 6/11$227
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 10/312:01 pmSJU - BOS
1 stop12h 43mAmerican Airlines
Tue 10/711:10 amBOS - SJU
2 stops9h 00mAmerican Airlines
Deal found 6/11$280

Cheapflights Fare Finder

Customize your flight search to find flights from Luis Munoz Marin Intl 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 June 12, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Boston that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Boston

Route

Depart

Return

Price

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 6/26

9:30 am-1:37 pm

Nonstop4h 07m

Boston Logan Intl

Sun 6/29

9:44 am-9:04 pm

1 stop11h 20m

$165

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 8/27

12:59 am-8:42 am

1 stop7h 43m

Boston Logan Intl

Sun 8/31

10:36 am-11:54 pm

1 stop13h 18m

$183

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 6/26

9:30 am-1:37 pm

Nonstop4h 07m

Boston Logan Intl

Sun 6/29

12:55 pm-12:44 am

1 stop11h 49m

$185

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Fri 7/4

1:33 pm-5:44 pm

Nonstop4h 11m

Boston Logan Intl

Sun 7/6

8:15 am-12:23 pm

Nonstop4h 08m

$218

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 6/26

6:00 am-10:07 am

Nonstop4h 07m

Boston Logan Intl

Sat 7/12

10:10 am-2:15 pm

Nonstop4h 05m

$226

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 6/19

9:30 am-1:37 pm

Nonstop4h 07m

$103

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 6/25

6:54 pm-10:59 pm

Nonstop4h 05m

$109

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Thu 8/28

8:13 pm-8:35 am

1 stop12h 22m

$111

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Wed 6/25

1:05 am-8:11 am

1 stop7h 06m

$114

San JuanBoston

SJU - BOS

SJUBOS

San Juan Luis Munoz Marin Intl

Tue 6/24

11:55 am-10:19 pm

2 stops10h 24m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 12 results
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The best insider tips for San Juan Luis Munoz Marin Intl Airport to Boston flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your San Juan Luis Munoz Marin Intl Airport to Boston trip
Airlines
Frontier

Frontier’s UpFront Plus seats offer a guaranteed empty middle seat for extra comfort.


Frontier’s Zone 1 boarding is available with a carry-on bag or special fare bundle.

Read more about Frontierby Marisa Garcia
Spirit Airlines

Spirit’s Big Front Seats offer 11 inches more legroom and larger tray tables.


Spirit’s Wi-Fi allows streaming; book a plan during ticket purchase for savings.

Read more about Spirit Airlinesby Daniel Scheffler
Airports
SJU

Security wait times at SJU can vary. Arrive two hours early for domestic flights to ensure a smooth departure.

Read more about SJUby Brandon Schultz
BOS

For a scenic arrival, consider the water taxi from BOS to Boston’s Long Wharf or Seaport District.

Read more about BOSby Paul Rubio
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Frontier

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Paul Rubio

Paul Rubio

Expert on BOS

Paul Rubio

Paul Rubio

Travel journalist and photographer Paul Rubio is a Miami native (and current resident), who has lived in nine countries and traveled to 137. He is an expert in luxury travel, eco-travel, loyalty programs, hotels, airports and airlines. He is a contributing editor at AFAR, Condé Nast Traveler, LUXURY Magazine, and Palm Beach Illustrated.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Best time to book a flight from Luis Munoz Marin Intl to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Boston

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to Boston?

Use this chart to determine the optimal time to book a round-trip flight from Luis Munoz Marin Intl to Boston. Price data was last updated on June 9, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to Boston. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to Boston?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Boston (average of $218). Flying from San Juan Luis Munoz Marin Intl Airport to Boston in June is currently the most expensive (average of $306). 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 Luis Munoz Marin Intl 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 June 12, 2025.

When flying from San Juan Luis Munoz Marin Intl Airport 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 23% versus a flight in the afternoon.

What is the cheapest day to fly from San Juan Luis Munoz Marin Intl Airport to Boston?

Use this chart to determine the cheapest time to fly round-trip from Luis Munoz Marin Intl to Boston. Price data was last updated on June 8, 2025.

Travelers seeking maximum savings on their San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport to Boston

Explore weekly flight availability from Luis Munoz Marin Intl 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 June 12, 2025.

The most flights from SJU to BOS are scheduled on a Monday (30 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 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 June 12, 2025.
To help decide which airline to fly from San Juan to Boston, see what other customers have to say about Delta, United Airlines and JetBlue. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.3
Good
2,925 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,052 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl?

    For a flight from San Juan Luis Munoz Marin Intl 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 20 inbound flights from San Juan Luis Munoz Marin Intl per day. 4 airlines have flights to Boston Logan Intl from San Juan Luis Munoz Marin Intl on a regular basis.

  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to Boston round-trip?

    Spirit Airlines, at $165, was found to be the cheapest airline from San Juan Luis Munoz Marin Intl Airport to Boston.Alternate airlines to your destination round-trip include Frontier and Delta. Spirit Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to Boston one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $103. JetBlue flights start at $109 while deals on Frontier start at $111 one-way.

  • What are the most reliable airlines from San Juan Luis Munoz Marin Intl Airport to Boston?

    No one likes to see their flight delayed. When booking a flight from San Juan Luis Munoz Marin Intl Airport to Boston consider choosing Delta (98%), KLM (94%) or Etihad Airways (93%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Boston?

    Looking for the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Boston? While on average our users pay $248, our data indicates the cheapest price to be $114. The most popular route (San Juan Luis Munoz Marin Intl - Boston Logan Intl), is priced around $154.

  • Can I find deals for flights from Luis Munoz Marin Intl to Boston that include hotel bookings?

    Yes. In addition to deals on Luis Munoz Marin Intl to Boston flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Luis Munoz Marin Intl to Boston?

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

  • Can I find deals for business class flights from Luis Munoz Marin Intl to Boston?

    Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl Airport to Boston?

    Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Boston (average of $218). Flying from San Juan Luis Munoz Marin Intl Airport to Boston in June is currently the most expensive (average of $306). 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 Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Cambridge
Medford
Watertown
Warwick
Waltham
Framingham
Seabrook
Cranston
Randolph
Chestnut Hill
Lowell
Chelsea
Marlborough
Brockton
York Beach
Saco
Burlington
West Yarmouth
Smithfield
Swansea

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Alternative routes for Luis Munoz Marin Intl to Boston

See prices for flight routes from nearby airports that may be better suited for you.
Luis Munoz Marin Intl to Hartford flights
Luis Munoz Marin Intl to Albany flights
Luis Munoz Marin Intl to West Tisbury flights
Luis Munoz Marin Intl to Provincetown flights

Top 4 airlines flying from Luis Munoz Marin Intl to Boston

Discover the top 4 airlines that operate flights from Luis Munoz Marin Intl 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$68Average$136FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$69Average$196FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$131Average$276FlexibilityNo cancel feeOn-time62%
DeltaCheapest$133Average$266FlexibilityNo cancel feeOn-timeN/A

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