What airlines fly to San Juan?

JetBlue, Delta and Frontier are the top three most popular airlines that fly to San Juan from Boston according to our data. JetBlue is the first choice among our users, with 54% of people opting to fly with this airline when traveling to San Juan. Keep in mind that there are 7 different airlines that fly to San Juan on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for Boston to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

How many flights depart from Boston to San Juan on average per day?

The number of flights available between Boston and San Juan is 3 per day as of December 2025. The most frequent departure time is 6:00PM, with 39% of daily flights leaving at noon.

How often are flights from Boston to San Juan delayed?

Historically, on average around 24% of flights between Boston and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

What is the cheapest airline that flies from Boston Logan Intl to San Juan?

Delta, JetBlue, and United Airlines are the most popular carriers operating from Boston Logan Intl to San Juan

Which airline has the best punctuality record on Boston to San Juan flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

How many flights depart from Boston to San Juan on average per week?

As of December 2025, there are 25 flights per week flying from Boston to San Juan. The most common day of the week flights depart is Wed, with 52% of flights taking off on this day.

When did momondo last update prices for flights from Boston Logan Intl Airport to San Juan?

Prices for flights from Boston Logan Intl Airport to San Juan were last updated today.

How many operators does momondo search for flights from Boston Logan Intl Airport to San Juan?

There are 7 operators available for flights from Boston Logan Intl Airport to San Juan as of December 2025.

How old do you have to be to fly from Boston Logan Intl Airport to San Juan?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to San Juan.

What documentation or ID do you need to fly to San Juan?

The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$93 Cheap Flights from Boston to San Juan in 2025/26

Q: What is the typical price of a round-trip flight between Boston and San Juan?

Prices are currently low for flights on this route. Typical prices usually range from $266 to $575. The lowest price recently found on this route was $149.

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Enter your travel dates to find the best prices.

12:31 pm - 5:30 pm

BOS

SJU

3h 59mnonstop

4:35 pm - 1:13 am

SJU

BOS

9h 38m1 stop

$149Frontier

Tue, Jan 6 - Tue, Jan 13

3:18 pm - 8:24 pm

BOS

SJU

4h 06mnonstop

6:00 am - 9:19 am

SJU

BOS

4h 19mnonstop

$151Multiple Airlines

Fri, Feb 6 - Sat, Feb 14

5:23 pm - 12:44 pm

BOS

SJU

18h 21m1 stop

10:52 am - 2:12 pm

SJU

BOS

4h 20mnonstop

$152Multiple Airlines

Sat, Jan 24 - Fri, Jan 30

10:35 am - 2:45 pm

BOS

SJU

4h 10mnonstop

9:52 am - 2:10 pm

SJU

BOS

4h 18mnonstop

$153Multiple Airlines

Tue, Apr 7 - Tue, Apr 14

3:18 pm - 8:24 pm

BOS

SJU

4h 06mnonstop

6:11 pm - 1:13 am

SJU

BOS

8h 02m1 stop

$154Multiple Airlines

Mon, Feb 2 - Sat, Feb 7

3:18 pm - 8:24 pm

BOS

SJU

4h 06mnonstop

4:06 pm - 1:13 am

SJU

BOS

10h 07m1 stop

$155Multiple Airlines

Wed, Feb 4 - Wed, Feb 11

3:18 pm - 8:24 pm

BOS

SJU

4h 06mnonstop

6:00 am - 2:38 pm

SJU

BOS

9h 38m1 stop

$156Spirit Airlines

Mon, Feb 2 - Sat, Feb 7

5:34 am - 3:35 pm

BOS

SJU

9h 01m1 stop

6:00 am - 2:38 pm

SJU

BOS

9h 38m1 stop

$157Spirit Airlines

Tue, Jan 20 - Sat, Jan 24

10:18 am - 3:22 pm

BOS

SJU

4h 04mnonstop

9:23 pm - 10:11 am

SJU

BOS

13h 48m1 stop

$158Frontier

Sun, Jan 4 - Sat, Jan 10

3:18 pm - 8:24 pm

BOS

SJU

4h 06mnonstop

10:52 am - 2:12 pm

SJU

BOS

4h 20mnonstop

$159Spirit Airlines

Sat, Jan 24 - Thu, Jan 29

Frontier flights from Boston to San Juan

Our best Frontier deals on Boston to San Juan flight tickets

Frontier

Jan 6

BOS12:31 pmBoston Logan Intl

3h 59m

SJU5:30 pmSan Juan Luis Munoz Marin Intl

Jan 13

SJU4:35 pmSan Juan Luis Munoz Marin Intl

9h 38m

1 stop

BOS1:13 amBoston Logan Intl

$149

Find similar

Frontier

Jan 24

BOS6:00 amBoston Logan Intl

10h 00m

1 stop

SJU5:00 pmSan Juan Luis Munoz Marin Intl

Jan 31

SJU6:11 pmSan Juan Luis Munoz Marin Intl

8h 02m

1 stop

BOS1:13 amBoston Logan Intl

$174

Find similar

Frontier

Feb 21

BOS12:25 pmBoston Logan Intl

24h 34m

1 stop

SJU1:59 pmSan Juan Luis Munoz Marin Intl

Feb 28

SJU5:25 pmSan Juan Luis Munoz Marin Intl

16h 41m

1 stop

BOS9:06 amBoston Logan Intl

$181

Find similar

JetBlue flights from Boston to San Juan

Our best JetBlue deals on Boston to San Juan flight tickets

JetBlue

Dec 30

BOS6:50 pmBoston Logan Intl

4h 06m

SJU11:56 pmSan Juan Luis Munoz Marin Intl

Jan 4

SJU6:01 amSan Juan Luis Munoz Marin Intl

4h 12m

BOS9:13 amBoston Logan Intl

$186

Find similar

JetBlue

Dec 29

BOS5:01 amBoston Logan Intl

3h 59m

SJU10:00 amSan Juan Luis Munoz Marin Intl

Jan 7

SJU2:00 pmSan Juan Luis Munoz Marin Intl

4h 13m

BOS5:13 pmBoston Logan Intl

$187

Find similar

JetBlue

Jan 31

BOS5:50 pmBoston Logan Intl

4h 05m

SJU10:55 pmSan Juan Luis Munoz Marin Intl

Feb 17

SJU8:20 pmSan Juan Luis Munoz Marin Intl

4h 12m

BOS11:32 pmBoston Logan Intl

$194

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 1/6

12:31 pm-5:30 pm

Nonstop3h 59m

San Juan Luis Munoz Marin Intl

Tue 1/13

4:35 pm-1:13 am

1 stop9h 38m

$149

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Fri 2/6

3:18 pm-8:24 pm

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Sat 2/14

6:00 am-9:19 am

Nonstop4h 19m

$151

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sat 1/24

5:23 pm-12:44 pm

1 stop18h 21m

San Juan Luis Munoz Marin Intl

Fri 1/30

10:52 am-2:12 pm

Nonstop4h 20m

$152

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 4/7

10:35 am-2:45 pm

Nonstop4h 10m

San Juan Luis Munoz Marin Intl

Tue 4/14

9:52 am-2:10 pm

Nonstop4h 18m

$153

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 2/2

3:18 pm-8:24 pm

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:11 pm-1:13 am

1 stop8h 02m

$154

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Wed 2/4

3:18 pm-8:24 pm

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Wed 2/11

4:06 pm-1:13 am

1 stop10h 07m

$155

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Mon 2/2

3:18 pm-8:24 pm

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Sat 2/7

6:00 am-2:38 pm

1 stop9h 38m

$156

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Tue 1/20

5:34 am-3:35 pm

1 stop9h 01m

San Juan Luis Munoz Marin Intl

Sat 1/24

6:00 am-2:38 pm

1 stop9h 38m

$157

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sun 1/4

10:18 am-3:22 pm

Nonstop4h 04m

San Juan Luis Munoz Marin Intl

Sat 1/10

9:23 pm-10:11 am

1 stop13h 48m

$158

BostonSan Juan

BOS - SJU

BOSSJU

Boston Logan Intl

Sat 1/24

3:18 pm-8:24 pm

Nonstop4h 06m

San Juan Luis Munoz Marin Intl

Thu 1/29

10:52 am-2:12 pm

Nonstop4h 20m

$159

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How to get the cheapest flight ticket from Boston to San Juan

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Boston and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in January, then March is your next best option. Flight prices from Boston to San Juan during March average around $264.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Boston to San Juan is on a Monday when prices can be found for as low as $302. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $343.

What is the cheapest time of day to depart on your flight to San Juan?

The cheapest time of day to fly to San Juan is in the afternoon when flights can be purchased for as low as $313. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $338 on average. Flights to San Juan from Boston at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Boston Logan Intl to San Juan flight route?

Fly from Boston Logan Intl to San Juan Luis Munoz Marin Intl for the best Boston Logan Intl - San Juan flight prices

How far in advance should I book a flight to San Juan?

You are more likely to see cheaper flights to San Juan from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around $305 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from Boston for as low as $269 on momondo.

What cabin class options are available on Boston Logan Intl to San Juan flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Boston to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Juan

Fastest flight time	3h 56m
Direct flights	Every day
Airports in San Juan	2 airports

The fastest flight from Boston to San Juan takes 3h 56m

Direct flights go from Boston to San Juan every day.

There are 2 airports in San Juan. From Boston there are direct flights to San Juan Luis Munoz Marin Intl (SJU).

Search flight deals

How far is Boston Logan Intl to San Juan by plane?
San Juan is 1675.2 mi away from Boston Logan Intl. By plane, this route typically takes 3h 56m.
When did momondo last update prices for flights from Boston Logan Intl Airport to San Juan?
Prices for flights from Boston Logan Intl Airport to San Juan were last updated today.
How many operators does momondo search for flights from Boston Logan Intl Airport to San Juan?
There are 7 operators available for flights from Boston Logan Intl Airport to San Juan as of December 2025.
How old do you have to be to fly from Boston Logan Intl Airport to San Juan?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to San Juan.
What documentation or ID do you need to fly to San Juan?
The travel and health documents required for your trip to San Juan can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at San Juan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Boston to San Juan

Compare and see reviews for airlines that fly from Boston to San Juan with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $89	Free Cancellation	Rating 5.8 3,081 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $98	Free Cancellation	Rating 6.3 8,190 reviews	Search Spirit Airlines flights
JetBlue	PriceFrom $124	Free Cancellation	Rating 7.2 2,897 reviews	Search JetBlue flights
Delta	PriceFrom $151	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights
United Airlines	PriceFrom $194	Free Cancellation	Rating 7.4 9,093 reviews	Search United Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 11,055 reviews	Search American Airlines flights
Southwest	PriceFrom $383	Free Cancellation	Rating 7.9 4,250 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Juan?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boston to San Juan. momondo saves you time and could save you money on your trip.

Can I find flights from Boston to San Juan with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to San Juan flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to San Juan?

Once all potential Boston to San Juan flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boston to San Juan right now. Can momondo alert me if prices change?

Price alerts on flights to San Juan from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Fly into one of these airports located in San Juan

San Juan Isla Grande Airport

San Juan Luis Munoz Marin Intl Airport

Fly to other destinations from Boston

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Flights from Boston Logan Intl to Grand Rapids Gerald R. Ford Intl

Cheap flights from Boston to San Juan from $93

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to San Juan departing on 1/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from Boston to San Juan

Our best Frontier deals on Boston to San Juan flight tickets

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Our best JetBlue deals on Boston to San Juan flight tickets

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See travel insights to San Juan from

How to get the cheapest flight ticket from Boston to San Juan

What is the typical price of a round-trip flight between Boston and San Juan?

What is the cheapest month to fly to San Juan?

If you’re not able to fly to San Juan in January, then March is your next best option. Flight prices from Boston to San Juan during March average around $264.

What is the cheapest day to depart on your flight to San Juan?

The cheapest day to depart from Boston to San Juan is on a Monday when prices can be found for as low as $302. The most expensive day to fly to San Juan is Friday, with ticket prices averaging around $343.

What is the cheapest time of day to depart on your flight to San Juan?

What is the cheapest Boston Logan Intl to San Juan flight route?

Fly from Boston Logan Intl to San Juan Luis Munoz Marin Intl for the best Boston Logan Intl - San Juan flight prices

How far in advance should I book a flight to San Juan?

What cabin class options are available on Boston Logan Intl to San Juan flights?

There are 4 cabin classes available to choose from on Boston Logan Intl to San Juan flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from Boston Logan Intl to San Juan?

Delta, JetBlue, and United Airlines are the most popular carriers operating from Boston Logan Intl to San Juan

What airlines fly to San Juan?

How often are flights from Boston to San Juan delayed?

Historically, on average around 24% of flights between Boston and San Juan have experienced a delay on any given week. The average delay length over the past 12 months has been 145 minutes.

What is the most punctual flight time for Boston to San Juan flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights at night have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Boston to San Juan flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 17% of their flights experiencing any sort of delay.

How many flights depart from Boston to San Juan on average per day?

The number of flights available between Boston and San Juan is 3 per day as of December 2025. The most frequent departure time is 6:00PM, with 39% of daily flights leaving at noon.

How many flights depart from Boston to San Juan on average per week?

As of December 2025, there are 25 flights per week flying from Boston to San Juan. The most common day of the week flights depart is Wed, with 52% of flights taking off on this day.

Cheap Boston to San Juan flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to San Juan

Fastest flight time

Direct flights

Airports in San Juan

How far is Boston Logan Intl to San Juan by plane?

When did momondo last update prices for flights from Boston Logan Intl Airport to San Juan?

How many operators does momondo search for flights from Boston Logan Intl Airport to San Juan?

How old do you have to be to fly from Boston Logan Intl Airport to San Juan?

What documentation or ID do you need to fly to San Juan?

Best airlines flying from Boston to San Juan

Compare and see reviews for airlines that fly from Boston to San Juan with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Boston to San Juan?

Can I find flights from Boston to San Juan with flexible booking policies on momondo?

How can momondo help me find flights from Boston to San Juan?

I’m not ready to book a flight from Boston to San Juan right now. Can momondo alert me if prices change?

An easier way to manage your San Juan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Puerto Rico

Fly into one of these airports located in San Juan

Airports listed have a maximum distance of 7.1 mi from San Juan