Are there direct flights from Boston to San Juan?

Based on data from the trailing 90 days, approximately 19.5% of flights from Boston to San Juan are direct. For flights that include stopovers, travelers typically experience 2 stopovers. This means that while direct options are available, a significant portion of flights will involve connections.

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

A direct flight from Boston to San Juan typically takes 4 hours and 0 minutes. For flights with one stop, the median travel time increases to 7 hours and 26 minutes. The total 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 can often find opportunities for price reductions. This pattern has been observed across the trailing 30 days.

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 1 day ago

461 airlines compared

80%+ AI score for best value

Fares are subject to change and may not be available for all dates. (Data last updated Sep 14, 2026.)

Today’s best flight deals from Boston to San Juan

Explore current cheapest deals departing from Boston to San Juan

2026-10-17 – 2026-10-24
BOS - San Juan
65% AI deal score
$259
$262
Round trip
2026-10-17 – 2026-11-06
BOS - San Juan
48% AI deal score
$223
$293
Round trip
2026-10-24 – 2026-11-06
BOS - San Juan
49% AI deal score
$233
$294
Round trip
2026-11-07 – 2026-11-13
BOS - San Juan
70% AI deal score
$335
$295
Round trip
2026-10-17 – 2026-10-23
BOS - San Juan
49% AI deal score
$259
$295
Round trip
2026-10-17 – 2026-11-13
BOS - San Juan
48% AI deal score
$222
$295
Round trip
2026-10-17 – 2026-10-27
BOS - San Juan
48% AI deal score
$239
$296
Round trip
2026-10-24 – 2026-11-13
BOS - San Juan
48% AI deal score
$223
$296
Round trip
2026-11-10 – 2026-11-13
BOS - San Juan
70% AI deal score
$350
$301
Round trip
2026-10-24 – 2026-10-31
BOS - San Juan
48% AI deal score
$258
$302
Round trip

Boston to San Juan: Overview

Insights for flights from Boston to San Juan

The journey from Boston to San Juan covers a distance of 2702 kilometers, classifying it as a medium-haul route. This distance means you'll be traveling a significant stretch, typically requiring more than just a short hop.

When looking for cheap flights from Boston to San Juan, prices typically range from $407–$919, with a median of $592. Right now, current fares are significantly above the typical level, and only 0% of recent fares were classified as a good price. New deals appear almost daily, so setting up a price alert could be beneficial.

If you're wondering when is the cheapest time to fly from Boston to San Juan, January stands out with a median fare of $166. Other affordable options include April, with a median fare of $189, and May, where the median fare is $212.

For direct flights from Boston to San Juan, only 19.5% of recent itineraries are non-stop. Most itineraries connect at least once, with the median number of stopovers for connecting flights being 2.

A typical journey from Boston to San Juan takes approximately 12 hours and 3 minutes, including connections. This duration reflects the prevalence of connecting flights on this route, as most itineraries involve at least one stopover.

How much is a round trip from Boston to San Juan

Regular price: $217 - $375

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

The regular price range for flights from Boston to San Juan is between $217 and $375. The current lowest deal is $262 with Frontier Airlines for travel from Oct 17-Oct 24.

now $262

Low $217

High $375

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

Thu, Oct 1

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Frontier Airlines

$261

$342

One-way

Thu, Oct 1

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Frontier Airlines

$272

$343

One-way

Fri, Oct 2

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

United Airlines

$249

$335

One-way

Sat, Oct 3

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Allegiant Air

$260

$303

One-way

Sat, Oct 3

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Frontier Airlines

$229

$331

One-way

Sat, Oct 3

⌛ Last-Minute

BOS - San Juan

Boston (BOS) - San Juan (SJU)

Frontier Airlines

$271

$337

One-way

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

4 nights

Nov 14 - Nov 18

$350 → $300

14%

4 nights

Nov 18 - Nov 22

$350 → $332

3 nights

Nov 11 - Nov 14

$350 → $335

3 nights

Nov 9 - Nov 12

$349 → $335

Popular Airports to fly from Boston to San Juan

Boston - San Juan route insights

💸 Price insights

Recent fares are above the typical level

Recent fares from Boston to San Juan are above the typical level for this route.

📅 Best time to fly

January offers the lowest median prices

Historically, January, April, and May offer the lowest median prices for flights to San Juan.

⏱️ Flight duration

Median flight time is 12h 3m

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

✈️ Airlines & availability

Connecting flights are common

About 19.5% of recent flights are direct, with connecting flights typically having 2 stopovers.

🏆 Airline highlight

JetBlue Airways offers direct flights

JetBlue Airways is one airline offering direct flights from Boston to San Juan.

🎯 Booking tip

Deals appear frequently

Deals for this route appear frequently, with a median price of $592 historically.

Boston main airports to depart from

Logan International (BOS)

Cheapest

Logan International Airport is a convenient choice for flights from Boston to San Juan.

📍 ~4 km from Boston city center (reachable by car or public transport)

💸 Flights from ~$253

San Juan main airports to arrive at

Luis Muñoz Marín International (SJU)

Cheapest

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

📍 ~11 km from San Juan (reachable by car)

💸 Flights from ~$262

Airports nearby San Juan used as alternative

Aguadilla Rafael Hernandez (BQN)

Cheapest

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 ~$300

Business & First Class Flight Deals to San Juan

$914

Save $525

United Airlines

Business Class

Frequently Asked Questions About Flights to San Juan

Historically, the best time to book flights from Boston to San Juan for the cheapest prices is typically between 28 and 59 days before departure. During this period, the average price for a flight is around $230. Booking within 0-6 days of departure sees prices rise significantly to an average of $325. Even further out, at 60+ days, the average price is higher at $549.

Across the trailing quarter, a flight from Boston to San Juan is considered a good deal if it is priced at or below $407. The median price for this route over the same period was $592. Prices above $919 are typically in the more expensive range, based on historical data from the trailing 90 days.

Historically, January has been one of the cheapest months to fly from Boston to San Juan, with a median price of $166. April and May also offer competitive prices, with median fares of $189 and $212 respectively. The annual median price for this route is $592, indicating that these months offer significant savings.

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: $217 - $375

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

The regular price range for flights from Boston to San Juan is between $217 and $375. The current lowest deal is $262 with Frontier Airlines for travel from Oct 17-Oct 24.

now $262

Low $217

High $375

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