Are there direct flights from Boston to San Juan?

Across the trailing quarter, approximately 19.5% of flights from Boston to San Juan have been direct. For flights that include stopovers, the median number of stopovers is typically two. Travelers should consider these factors when planning their journey.

How many hours is the flight from Boston to San Juan?

A direct flight from Boston to San Juan typically takes about 4 hours and 0 minutes. For flights with one stop, the median duration is considerably longer, averaging 7 hours and 26 minutes. The distance covered on this route is approximately 2702 kilometers.

How often do Boston to San Juan flight prices drop?

Historically, flight prices for the Boston to San Juan route are classified as frequent in terms of price drops. This indicates that travelers may often find opportunities for price reductions. This trend has been observed across the trailing 30 days of data.

Flights From Boston

To San Juan

Cheap Flights from Boston to San Juan

Browse current best options from Boston. Become a member to unlock all deals and get alerts when new deals appear.

Deals from

Boston

RatePunk searches hundreds of travel sites at once for deals on flights to San Juan

Prices updated 2 days ago

405 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Jul 26, 2026.)

Today’s best flight deals from Boston to San Juan

Explore current cheapest deals departing from Boston to San Juan

2026-10-22 – 2026-10-30
BOS - San Juan
69% AI deal score
$271
$244
Round trip
2026-10-12 – 2026-10-23
BOS - San Juan
67% AI deal score
$181
$248
Round trip
2026-10-05 – 2026-10-17
BOS - San Juan
66% AI deal score
$174
$248
Round trip
2026-10-03 – 2026-10-30
BOS - San Juan
65% AI deal score
$233
$248
Round trip
2026-10-25 – 2026-10-28
BOS - San Juan
67% AI deal score
$215
$249
Round trip
2026-10-26 – 2026-10-30
BOS - San Juan
67% AI deal score
$216
$249
Round trip
2026-10-03 – 2026-10-10
BOS - San Juan
70% AI deal score
$264
$249
Round trip
2026-09-12 – 2026-09-16
BOS - San Juan
68% AI deal score
$191
$257
Round trip
2026-09-26 – 2026-09-28
BOS - San Juan
68% AI deal score
$196
$257
Round trip
2026-09-09 – 2026-09-14
BOS - San Juan
68% AI deal score
$187
$257
Round trip

Boston to San Juan: Overview

Insights for flights from Boston to San Juan

The journey from Boston to San Juan spans a distance of 2702 kilometers, classifying it as a medium-haul route. For travelers seeking cheap flights from Boston to San Juan, fares typically range from $407–$919, with a median of $592. Right now, current fares are significantly above the typical level, indicating a less opportune time for booking. New deals appear almost daily, suggesting frequent opportunities for price changes.

If you are looking for the cheapest time to fly from Boston to San Juan, the data indicates that January is the most affordable month, with a median fare of $166. Following closely, April offers a median fare of $189, and May presents a median of $212. These months provide the best value for this route.

When flying from Boston to San Juan, most itineraries connect at least once, with only 19.5% of recent fares being non-stop. For the majority of itineraries that include connections, travelers can expect a median of 2 stopovers.

The typical journey time from Boston to San Juan, including connections, is approximately 12 hours and 3 minutes. This duration accounts for the prevalence of connecting flights on this route, providing a realistic expectation for the overall travel time.

How much is a round trip from Boston to San Juan

Regular price: $222 - $352

Prices are currently within the regular range for flights from Boston to San Juan.

The regular price range for flights from Boston to San Juan is between $222 and $352. The current lowest deal is $254 with Allegiant Air, for travel from Oct 3-Oct 9.

now $254

Low $222

High $352

The cheapest time to fly from Boston to San Juan

The cheapest month to fly from Boston to San Juan is January, with a median price of $166. The most expensive month is November, with a median price of $1096. Prices are generally lower from January to September.

January

Cheapest

Flights from $166

November

Most Expensive

Flights from $1,096

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Direct flights from Boston to San Juan

JetBlue Airways

Last-minute flights going from Boston to San Juan

Fri, Aug 21

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$263

$338

One-way

Sun, Aug 23

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$291

$340

One-way

Sun, Aug 23

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$274

$340

One-way

Mon, Aug 24

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$291

$339

One-way

Thu, Aug 27

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$291

$340

One-way

Thu, Sep 3

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Deutsche Luft Hansa

$256

$319

One-way

Biggest price drops on these dates for flights from Boston to San Juan

3 nights

Nov 8 - Nov 11

$391 → $261

33%

3 nights

Nov 20 - Nov 23

$404 → $338

16%

4 nights

Nov 22 - Nov 26

$404 → $344

15%

5 nights

Nov 12 - Nov 17

$401 → $342

15%

Popular Airports to fly from Boston to San Juan

Boston - San Juan route insights

💸 Price insights

Recent fares are below the typical level

Recent fares from Boston to San Juan are below the typical level of $592.

📅 Best time to fly

January is historically the cheapest month

Historically, January is the cheapest month to fly from Boston to San Juan, with a median price of $166.

⏱️ Flight duration

Median flight time is 12h 3m

The median flight time from Boston to San Juan is 12 hours 3 minutes.

✈️ Airlines & availability

Connecting flights are dominant

Connecting flights are dominant on this route, with a median of 2 stopovers.

🏆 Airline highlight

JetBlue Airways offers direct flights

JetBlue Airways offers direct flights from Boston to San Juan.

🎯 Booking tip

Deals are frequent on this route

Deals on flights from Boston to San Juan are frequent, with a median price of $254.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Boston Logan International Airport (BOS) is a great option for flights from Boston to San Juan.

📍 ~5 km from city center (reachable by car or public transport)

💸 Flights from ~$272

San Juan main airports to arrive at

Luis Muñoz Marín International (SJU)

Cheapest

Luis Muñoz Marín International Airport is the primary arrival airport for flights to San Juan from Boston.

📍 ~10 km from San Juan (reachable by car)

💸 Flights from ~$272

Airports nearby San Juan used as alternative

Aguadilla Rafael Hernandez (BQN)

Aguadilla Rafael Hernandez is a primary alternative for flights to the US mainland from Puerto Rico.

📍 ~135 km from San Juan (approximately a 2-hour drive)

💸 Flights from ~$327

Business & First Class Flight Deals to San Juan

84% AI deal score

$1,341

$895

Save $446

Frequently Asked Questions About Flights to San Juan

Historically, the best prices for flights from Boston to San Juan are found when booking 28-59 days in advance. During this period, the average price is around $230. Booking within 0-6 days of departure typically sees prices rise to approximately $325. For those booking 7-13 days out, the average price can be as high as $555, indicating that last-minute bookings tend to be more expensive.

A good deal for a flight from Boston to San Juan is considered to be around $407 or less. This threshold is based on historical pricing data from the trailing 90 days. The median price for this route has been $592, and prices can go up to $919 or more for the higher end of the market.

Historically, the cheapest months to fly from Boston to San Juan include January, with a median price of $166, and April, with a median price of $189. May also offers competitive pricing, with a median of $212. These months typically offer prices significantly lower than the annual median of $592 for this route.

Boston to San Juan: Overview

Insights for flights from Boston to San Juan

How much is a round trip from Boston to San Juan

Regular price: $222 - $352

Prices are currently within the regular range for flights from Boston to San Juan.

The regular price range for flights from Boston to San Juan is between $222 and $352. The current lowest deal is $254 with Allegiant Air, for travel from Oct 3-Oct 9.

now $254

Low $222

High $352

The cheapest time to fly from Boston to San Juan

January

Cheapest

Flights from $166

November

Most Expensive

Flights from $1,096

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec