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

Currently priced at $164, Spirit Airlines will fly you from Boston to San Juan Luis Munoz Marin Intl Airport and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and JetBlue - these airlines can fly you to your destination from $167 and $218, respectively. These flights start at 38% lower than the current average price 3 months from now.

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

While on average a flight from Boston to San Juan Luis Munoz Marin Intl Airport is generally $492, our data shows the cheapest flight currently is $60. When looking at the most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $169 for that flight.

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

Consider Turkish Airlines (89%), Aer Lingus (78%) or Delta (78%) when booking your flight. These represent the most reliable airlines when flying from Boston to San Juan Luis Munoz Marin Intl Airport.

What are the most popular airlines that fly from Boston to San Juan Luis Munoz Marin Intl Airport?

The most popular airlines flying from Boston to San Juan Luis Munoz Marin Intl Airport are American Airlines, JetBlue and Delta. Something to consider prior to booking your flight.

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

Friday flights are found to be more expensive to fly from Boston to San Juan Luis Munoz Marin Intl Airport. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to San Juan Luis Munoz Marin Intl Airport.

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

The best pricing can be found in the month of September. Prices to San Juan Luis Munoz Marin Intl Airport from Boston average $267. You can even find prices in September for less than $267, as users have found deals to San Juan Luis Munoz Marin Intl Airport from as low as $54. The month of December appears to be one of the more expensive times to travel to San Juan Luis Munoz Marin Intl Airport from Boston. Flying in the targeted month can save you up to 47%.

What airport do you fly from for flights from Boston to San Juan Luis Munoz Marin Intl?

Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to San Juan Luis Munoz Marin Intl. You should not have trouble finding flights to San Juan Luis Munoz Marin Intl from Logan Intl; the airport handles an average of 12 outbound flights to San Juan Luis Munoz Marin Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Boston airport to San Juan Luis Munoz Marin Intl. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.

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

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

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

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

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

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

$92+ Flights from Boston to San Juan Luis Munoz Marin Intl Airport

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Boston Logan Intl to San Juan Luis Munoz Marin Intl are usually found in September or August, booked 27 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Boston to Luis Munoz Marin Intl

Round-trip from	$164 (Kiwi.com)
One-way from	$92 (FlightHub)
Popular in	December
Cheapest in	September
Average price	$303
Good round-trip deal	$252 or less
Good one-way deal	$122 or less

From Boston Logan Intl to San Juan Luis Munoz Marin Intl

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One-way flight from Boston Logan Intl to San Juan Luis Munoz Marin Intl

Search Deals

Highest demand for flights based on searches. 10% potential increase in price ($29 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($12 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 Boston Logan Intl to San Juan Luis Munoz Marin Intl.

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Price to beat on a one-way flight from Boston Logan Intl to San Juan Luis Munoz Marin Intl.

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Find flight deals from Boston to Luis Munoz Marin Intl

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

dom. 7/62:42 pmBOS - SJU

Nonstop3h 54mSpirit Airlines

mié. 7/91:07 pmSJU - BOS

1 stop9h 56mSpirit Airlines

Deal found 6/12

$164

sáb. 8/3012:53 pmBOS - SJU

1 stop20h 06mFrontier

sáb. 9/61:01 pmSJU - BOS

1 stop19h 43mFrontier

Deal found 6/11

$167

mar. 9/304:40 pmBOS - SJU

1 stop17h 16mMultiple Airlines

sáb. 10/44:42 pmSJU - BOS

1 stop15h 51mMultiple Airlines

Deal found 6/11

$182

sáb. 7/128:45 pmBOS - SJU

Nonstop4h 04mJetBlue

sáb. 7/268:25 amSJU - BOS

Nonstop4h 10mJetBlue

Deal found 6/9

$218

vie. 10/108:10 amBOS - SJU

Nonstop4h 12mDelta

mar. 10/141:32 pmSJU - BOS

Nonstop4h 17mDelta

Deal found 6/11

$263

mar. 10/71:14 pmBOS - SJU

1 stop6h 56mAmerican Airlines

mar. 10/146:30 amSJU - BOS

1 stop17h 49mAmerican Airlines

Deal found 6/12

$278

Best flights from Boston to Luis Munoz Marin Intl
Discover carefully curated flight deals from Boston to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated junio 12, 2025.

dom. 7/62:42 pmBOS - SJU

Nonstop3h 54mSpirit Airlines

mié. 7/91:07 pmSJU - BOS

1 stop9h 56mSpirit Airlines

Deal found 6/11

$164

sáb. 8/3012:53 pmBOS - SJU

1 stop20h 06mFrontier

sáb. 9/61:01 pmSJU - BOS

1 stop19h 43mFrontier

Deal found 6/11

$167

jue. 8/2111:24 amBOS - SJU

1 stop12h 39mMultiple Airlines

mié. 8/2712:55 pmSJU - BOS

1 stop10h 34mMultiple Airlines

Deal found 6/11

$192

sáb. 7/58:45 pmBOS - SJU

Nonstop4h 04mJetBlue

sáb. 7/126:54 pmSJU - BOS

Nonstop4h 05mJetBlue

Deal found 6/10

$218

dom. 7/68:15 amBOS - SJU

Nonstop4h 08mDelta

mar. 7/81:26 pmSJU - BOS

Nonstop4h 14mDelta

Deal found 6/12

$263

Last-minute flights from Boston to Luis Munoz Marin Intl
Discover last-minute flight deals from Boston to Luis Munoz Marin Intl. Data last updated junio 12, 2025 and is based on user searches.

lun. 6/166:00 amBOS - SJU

1 stop9h 50mMultiple Airlines

jue. 6/269:30 amSJU - BOS

Nonstop4h 07mMultiple Airlines

Deal found 6/10

$189

mar. 6/179:01 amBOS - SJU

1 stop14h 58mFrontier

mié. 6/188:00 amSJU - BOS

1 stop23h 52mFrontier

Deal found 6/10

$185

mar. 6/1711:15 amBOS - SJU

1 stop8h 50mJetBlue

mar. 6/246:00 amSJU - BOS

Nonstop4h 07mJetBlue

Deal found 6/10

$290

mar. 6/178:10 amBOS - SJU

1 stop14h 45mAmerican Airlines

mar. 6/2411:55 amSJU - BOS

2 stops9h 54mAmerican Airlines

Deal found 6/10

$300

mar. 6/175:10 amBOS - SJU

1 stop8h 15mDelta

mié. 6/251:33 pmSJU - BOS

Nonstop4h 11mDelta

Deal found 6/11

$349

mar. 6/175:25 pmBOS - SJU

1 stop12h 05mUnited Airlines

mar. 6/241:05 amSJU - BOS

1 stop7h 50mUnited Airlines

Deal found 6/11

$391

mar. 6/179:00 amBOS - SJU

2 stops14h 55mSouthwest

mié. 6/186:30 amSJU - BOS

1 stop9h 10mSouthwest

Deal found 6/10

$393

dom. 6/229:01 amBOS - SJU

1 stop14h 58mMultiple Airlines

jue. 6/269:30 amSJU - BOS

Nonstop4h 07mMultiple Airlines

Deal found 6/10

$194

dom. 6/229:44 amBOS - SJU

1 stop11h 20mSpirit Airlines

jue. 6/269:30 amSJU - BOS

Nonstop4h 07mSpirit Airlines

Deal found 6/10

$212

dom. 7/62:42 pmBOS - SJU

Nonstop3h 54mSpirit Airlines

mié. 7/91:07 pmSJU - BOS

1 stop9h 56mSpirit Airlines

Deal found 6/12

$164

dom. 7/68:15 amBOS - SJU

Nonstop4h 08mDelta

mar. 7/81:26 pmSJU - BOS

Nonstop4h 14mDelta

Deal found 6/12

$263

sáb. 7/128:45 pmBOS - SJU

Nonstop4h 04mJetBlue

sáb. 7/268:25 amSJU - BOS

Nonstop4h 10mJetBlue

Deal found 6/9

$218

One-way flights from Boston to Luis Munoz Marin Intl
Search for one-way flight options from Boston to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated junio 12, 2025.

sáb. 6/283:25 pmBOS - SJU

1 stop10h 06mSpirit Airlines

Deal found 6/10

$92

vie. 8/299:20 amBOS - SJU

1 stop9h 48mFrontier

Deal found 6/11

$105

sáb. 7/128:10 amBOS - SJU

Nonstop4h 06mDelta

Deal found 6/11

$109

sáb. 9/67:10 amBOS - SJU

2 stops13h 28mUnited Airlines

Deal found 6/11

$114

mar. 9/96:29 amBOS - SJU

2 stops11h 45mAmerican Airlines

Deal found 6/11

$119

mié. 7/168:45 pmBOS - SJU

Nonstop4h 04mJetBlue

Deal found 6/10

$129

sáb. 8/910:01 amBOS - SJU

2 stops36h 59mMultiple Airlines

Deal found 6/11

$173

mié. 9/105:40 amBOS - SJU

1 stop7h 05mSouthwest

Deal found 6/12

$177

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

dom. 7/6

2:42 pm-6:36 pm

Nonstop3h 54m

San Juan Luis Munoz Marin Intl

mié. 7/9

1:07 pm-11:03 pm

1 stop9h 56m

$164

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

sáb. 8/30

12:53 pm-8:59 am

1 stop20h 06m

San Juan Luis Munoz Marin Intl

sáb. 9/6

1:01 pm-8:44 am

1 stop19h 43m

$167

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

mar. 9/30

4:40 pm-9:56 am

1 stop17h 16m

San Juan Luis Munoz Marin Intl

sáb. 10/4

4:42 pm-8:33 am

1 stop15h 51m

$182

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

sáb. 7/12

8:45 pm-12:49 am

Nonstop4h 04m

San Juan Luis Munoz Marin Intl

sáb. 7/26

8:25 am-12:35 pm

Nonstop4h 10m

$218

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

vie. 10/10

8:10 am-12:22 pm

Nonstop4h 12m

San Juan Luis Munoz Marin Intl

mar. 10/14

1:32 pm-5:49 pm

Nonstop4h 17m

$263

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

mar. 10/7

1:14 pm-8:10 pm

1 stop6h 56m

San Juan Luis Munoz Marin Intl

mar. 10/14

6:30 am-12:19 am

1 stop17h 49m

$278

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

mié. 10/8

5:30 am-12:34 pm

1 stop7h 04m

San Juan Luis Munoz Marin Intl

mar. 10/14

4:55 pm-11:59 pm

1 stop7h 04m

$317

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

vie. 9/12

9:18 am-2:34 am

1 stop17h 16m

$92

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

jue. 6/26

9:44 am-9:04 pm

1 stop11h 20m

$93

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

sáb. 7/12

8:45 pm-12:49 am

Nonstop4h 04m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 15 results

The best insider tips for Boston to San Juan Luis Munoz Marin Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Boston to San Juan Luis Munoz Marin Intl Airport trip

Airlines

Frontier

Frontier offers extra comfort seats with 32” separation for a fee, enhancing your flight experience.

Frontier’s Discount Den offers Kids Fly Free, ideal for family travel savings.

Read more about Frontierby Marisa Garcia

Spirit Airlines

Spirit’s Big Front Seats offer 11 inches more legroom, ideal for comfort on medium-haul flights.

Spirit’s Saver$ Club offers rotating deals and discounts on luggage and seats, maximizing savings.

Read more about Spirit Airlinesby Daniel Scheffler

Airports

BOS

Use the FlyLogan App to pre-order meals and save time at BOS. Most eateries participate, ensuring your meal is ready for pick-up.

SJU

Opt for rideshares like Uber at SJU for convenience and cashless payments. Taxis are available but often require cash despite claiming card acceptance.

Our travel experts

Marisa Garcia

Expert on Frontier

Daniel Scheffler

Expert on Spirit Airlines

Paul Rubio

Expert on BOS

Brandon Schultz

Expert on SJU

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

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

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

The price you pay for your flight from Boston to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 27 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 Boston to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Boston to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Boston to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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 SJU?

A simple way to save on the total cost of your ticket is to fly from Boston to San Juan Luis Munoz Marin Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 11% on your trip compared to booking a flight in the evening.

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

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

Weekly flight availability from Boston to San Juan Luis Munoz Marin Intl Airport

The most flights from BOS to SJU are scheduled on a Thursday (21 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Luis Munoz Marin Intl by month

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

Temperature in Luis Munoz Marin Intl by month

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

Reviews of airlines servicing Luis Munoz Marin Intl

Read reviews from past customers who have flown Southwest, Delta and United Airlines from Boston to San Juan. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Southwest

8.0

Very good

4,287 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Delta

8.0

Very good

7,950 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

United Airlines

7.4

Good

8,790 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

JetBlue

7.3

Good

2,925 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,287 reviews

Reviews

1 / 20

8.0

Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

What airport do you fly from for flights from Boston to San Juan Luis Munoz Marin Intl?
Boston Logan Intl (BOS) is the airport you will fly out of if you book a flight from Boston to San Juan Luis Munoz Marin Intl. You should not have trouble finding flights to San Juan Luis Munoz Marin Intl from Logan Intl; the airport handles an average of 12 outbound flights to San Juan Luis Munoz Marin Intl per day. You should also have plenty of airline options to choose from since 7 airlines have flights from the Boston airport to San Juan Luis Munoz Marin Intl. It is only a 2.6 mi journey to Logan Intl (BOS) from Boston’s city center.
What are the cheapest airlines flying from Boston to San Juan Luis Munoz Marin Intl Airport round-trip?
Currently priced at $164, Spirit Airlines will fly you from Boston to San Juan Luis Munoz Marin Intl Airport and back. In addition to Spirit Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Frontier and JetBlue - these airlines can fly you to your destination from $167 and $218, respectively. These flights start at 38% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Boston to San Juan Luis Munoz Marin Intl Airport one-way?
The cheapest airlines for a one-way flight from Boston to San Juan Luis Munoz Marin Intl Airport are Spirit Airlines ($92), Frontier ($105), and Delta ($109).
What are the most reliable airlines from Boston to San Juan Luis Munoz Marin Intl Airport?
Consider Turkish Airlines (89%), Aer Lingus (78%) or Delta (78%) when booking your flight. These represent the most reliable airlines when flying from Boston to San Juan Luis Munoz Marin Intl Airport.
What are the cheapest flights from Boston to San Juan Luis Munoz Marin Intl Airport?
While on average a flight from Boston to San Juan Luis Munoz Marin Intl Airport is generally $492, our data shows the cheapest flight currently is $60. When looking at the most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $169 for that flight.
Can I find deals for flights from Boston to Luis Munoz Marin Intl that include hotel bookings?
Yes. In addition to deals on Boston to Luis Munoz Marin Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boston to Luis Munoz Marin Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Luis Munoz Marin Intl.
Can I find deals for business class flights from Boston to Luis Munoz Marin Intl?
Yes. Cheapflights offers flight deals from Boston to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Boston to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Boston to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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

Dorado

Fajardo

Luquillo

Rio Grande

Humacao

Bayamón

Browse thousands of different options on Cheapflights for your next trip

Top 7 airlines flying from Boston to Luis Munoz Marin Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$75	Average$164	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$95	Average$254	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$142	Average$322	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$147	Average$333	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$204	Average$526	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$288	Average$494	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$427	Average$677	FlexibilityNo cancel fee	On-time63%

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$92+ Cheap flights from Boston (BOS) to Luis Munoz Marin Intl (SJU)

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Boston Logan Intl to San Juan Luis Munoz Marin Intl are usually found in September or August, booked 27 days in advance, depart on a Tuesday or Monday and return on a Friday

Cheap flight deals from Boston to Luis Munoz Marin Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Boston to Luis Munoz Marin Intl

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

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

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to San Juan Luis Munoz Marin Intl Airport that are best for you.

The best insider tips for Boston to San Juan Luis Munoz Marin Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Boston to San Juan Luis Munoz Marin Intl Airport trip

Airlines

Frontier

Spirit Airlines

Airports

BOS

SJU

Our travel experts

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

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Boston with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boston to San Juan Luis Munoz Marin Intl Airport

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

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

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

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

Find hourly flight availability from Boston to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

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

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

Weekly flight availability from Boston to San Juan Luis Munoz Marin Intl Airport

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Luis Munoz Marin Intl

Read reviews from past customers who have flown Southwest, Delta and United Airlines from Boston to San Juan. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston to Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

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

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

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

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

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

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

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

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

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Alternative routes for Boston to Luis Munoz Marin Intl

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Top 7 airlines flying from Boston to Luis Munoz Marin Intl

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