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

Currently priced at $194, 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 JetBlue and Frontier - these airlines can fly you to your destination from $205 and $239, respectively. These flights start at 28% 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 ($97), JetBlue ($109), and Frontier ($120).

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.

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).

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 $581, our data shows the cheapest flight currently is $108. When looking at the most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $154 for that flight.

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

Consider Spirit Airlines (88%), Delta (87%) or EL AL (87%) 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 $271. You can even find prices in September for less than $271, 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 41%.

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 16 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.

$97+ Flights from Boston to San Juan Luis Munoz Marin Intl Airport

Q: How much does it cost to fly round-trip from Boston to San Juan Luis Munoz Marin Intl Airport?

Airfare is typical for this route at the moment. Boston to San Juan Luis Munoz Marin Intl Airport flights typically cost between $136 and $337 in September. The cheapest round-trip price found within the last 3 days was $194 on Spirit Airlines (Sep 8-Sep 18).

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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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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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 October, booked 26 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Boston to Luis Munoz Marin Intl

Round-trip from	$194 (eDestinos)
One-way from	$97 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$303
Good round-trip deal	$274 or less
Good one-way deal	$158 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

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Highest demand for flights based on searches. 7% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 28, 2025.

Mon 11/106:00 amBOS - SJU

1 stop9h 23mSpirit Airlines

Sat 11/156:00 amSJU - BOS

1 stop18h 25mSpirit Airlines

Deal found 7/28

$192

Thu 11/136:55 pmBOS - SJU

Nonstop3h 58mJetBlue

Tue 11/182:22 pmSJU - BOS

Nonstop4h 13mJetBlue

Deal found 7/26

$205

Sat 8/26:00 amBOS - SJU

1 stop18h 27mMultiple Airlines

Thu 8/73:13 pmSJU - BOS

Nonstop4h 17mMultiple Airlines

Deal found 7/26

$207

Tue 8/59:01 amBOS - SJU

1 stop14h 58mFrontier

Sat 8/308:23 pmSJU - BOS

1 stop12h 12mFrontier

Deal found 7/27

$239

Thu 9/258:10 amBOS - SJU

Nonstop4h 05mDelta

Tue 9/301:25 pmSJU - BOS

Nonstop4h 05mDelta

Deal found 7/28

$244

Wed 10/1511:05 amBOS - SJU

1 stop12h 54mAmerican Airlines

Fri 10/175:30 amSJU - BOS

1 stop9h 51mAmerican Airlines

Deal found 7/27

$251

Sat 11/11:30 pmBOS - SJU

1 stop10h 15mSouthwest

Wed 11/511:20 amSJU - BOS

2 stops11h 15mSouthwest

Deal found 7/27

$253

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 July 28, 2025.

Mon 9/82:53 pmBOS - SJU

1 stop9h 51mSpirit Airlines

Thu 9/181:59 amSJU - BOS

1 stop11h 49mSpirit Airlines

Deal found 7/27

$194

Tue 9/168:00 amBOS - SJU

Nonstop4h 17mJetBlue

Sun 9/217:55 pmSJU - BOS

Nonstop4h 02mJetBlue

Deal found 7/26

$205

Sat 8/26:00 amBOS - SJU

1 stop18h 27mMultiple Airlines

Thu 8/73:13 pmSJU - BOS

Nonstop4h 17mMultiple Airlines

Deal found 7/26

$207

Tue 8/59:01 amBOS - SJU

1 stop14h 58mFrontier

Sat 8/308:23 pmSJU - BOS

1 stop12h 12mFrontier

Deal found 7/27

$239

Thu 9/258:10 amBOS - SJU

Nonstop4h 05mDelta

Tue 9/301:25 pmSJU - BOS

Nonstop4h 05mDelta

Deal found 7/28

$244

Wed 10/1511:05 amBOS - SJU

1 stop12h 54mAmerican Airlines

Fri 10/175:30 amSJU - BOS

1 stop9h 51mAmerican Airlines

Deal found 7/27

$251

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 July 28, 2025 and is based on user searches.

Sat 8/26:00 amBOS - SJU

1 stop18h 27mMultiple Airlines

Thu 8/73:13 pmSJU - BOS

Nonstop4h 17mMultiple Airlines

Deal found 7/26

$207

Tue 8/59:01 amBOS - SJU

1 stop14h 58mFrontier

Sat 8/308:23 pmSJU - BOS

1 stop12h 12mFrontier

Deal found 7/27

$239

Tue 8/58:45 pmBOS - SJU

Nonstop4h 04mJetBlue

Tue 8/126:00 amSJU - BOS

Nonstop4h 07mJetBlue

Deal found 7/27

$245

Thu 8/710:03 amBOS - SJU

Nonstop4h 05mSpirit Airlines

Tue 8/123:50 pmSJU - BOS

1 stop7h 58mSpirit Airlines

Deal found 7/28

$232

Tue 8/191:40 pmBOS - SJU

Nonstop4h 02mJetBlue

Fri 9/57:55 pmSJU - BOS

Nonstop4h 02mJetBlue

Deal found 7/27

$205

Tue 8/268:00 amBOS - SJU

Nonstop4h 06mDelta

Thu 9/251:25 pmSJU - BOS

Nonstop4h 05mDelta

Deal found 7/27

$258

Sun 8/316:05 amBOS - SJU

1 stop15h 43mSpirit Airlines

Wed 9/31:59 amSJU - BOS

1 stop11h 49mSpirit Airlines

Deal found 7/27

$194

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 July 28, 2025.

Sun 9/286:49 pmBOS - SJU

1 stop16h 15mSpirit Airlines

Deal found 7/27

$97

Mon 8/189:56 amBOS - SJU

Nonstop4h 05mJetBlue

Deal found 7/27

$109

Sun 8/106:00 amBOS - SJU

1 stop9h 52mFrontier

Deal found 7/26

$120

Mon 8/188:00 amBOS - SJU

Nonstop4h 06mDelta

Deal found 7/28

$123

Mon 9/295:35 amBOS - SJU

1 stop7h 05mSouthwest

Deal found 7/26

$127

Mon 9/157:28 amBOS - SJU

2 stops10h 47mAmerican Airlines

Deal found 7/27

$128

Tue 8/265:30 amBOS - SJU

2 stops15h 08mUnited Airlines

Deal found 7/26

$156

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

Mon 9/8

2:53 pm-12:44 am

1 stop9h 51m

San Juan Luis Munoz Marin Intl

Thu 9/18

1:59 am-1:48 pm

1 stop11h 49m

$194

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 9/16

8:00 am-12:17 pm

Nonstop4h 17m

San Juan Luis Munoz Marin Intl

Fri 9/26

7:55 pm-11:57 pm

Nonstop4h 02m

$205

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sat 8/2

6:00 am-12:27 am

1 stop18h 27m

San Juan Luis Munoz Marin Intl

Thu 8/7

3:13 pm-7:30 pm

Nonstop4h 17m

$207

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 8/5

9:01 am-11:59 pm

1 stop14h 58m

San Juan Luis Munoz Marin Intl

Sat 8/30

8:23 pm-8:35 am

1 stop12h 12m

$239

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Thu 9/25

8:10 am-12:15 pm

Nonstop4h 05m

San Juan Luis Munoz Marin Intl

Tue 9/30

1:25 pm-5:30 pm

Nonstop4h 05m

$244

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 10/15

11:05 am-11:59 pm

1 stop12h 54m

San Juan Luis Munoz Marin Intl

Fri 10/17

5:30 am-3:21 pm

1 stop9h 51m

$251

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 9/28

6:49 pm-11:04 am

1 stop16h 15m

$97

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 8/18

9:56 am-2:01 pm

Nonstop4h 05m

$109

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 8/10

6:00 am-3:52 pm

1 stop9h 52m

$120

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 9/29

5:35 am-12:40 pm

1 stop7h 05m

$127

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 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 26 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 morning. If you’re flexible enough to do this you can expect to save up to 14% 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 Monday mornings 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 Sunday (21 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from Boston to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Boston to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,237 reviews

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

4,237 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,971 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

United Airlines

7.4

Good

8,893 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

JetBlue

7.3

Good

2,913 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,237 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

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 16 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 $194, 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 JetBlue and Frontier - these airlines can fly you to your destination from $205 and $239, respectively. These flights start at 28% 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 ($97), JetBlue ($109), and Frontier ($120).
What are the most reliable airlines from Boston to San Juan Luis Munoz Marin Intl Airport?
Consider Spirit Airlines (88%), Delta (87%) or EL AL (87%) 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 $581, our data shows the cheapest flight currently is $108. When looking at the most popular route, (Boston Logan Intl - San Juan Luis Munoz Marin Intl), you can expect to pay $154 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

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$80	Average$170	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$97	Average$267	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$140	Average$328	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$149	Average$347	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$204	Average$517	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$288	Average$487	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$416	Average$671	FlexibilityNo cancel fee	On-time63%

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$97+ 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 9/28. 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 October, booked 26 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Boston to Luis Munoz Marin Intl

Round-trip from

One-way from

Popular in

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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 July 28, 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 July 28, 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 July 25, 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 July 28, 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 July 27, 2025.

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

How much does it cost to fly round-trip from Boston to San Juan Luis Munoz Marin Intl Airport?

Reviews of airlines servicing Luis Munoz Marin Intl

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?

Traveling to a place near San Juan Luis Munoz Marin Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

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 July 28, 2025.