$62 Cheap Flights from Boston (BOS) to San Juan (SJU)

View $62 flight on Thu, Apr 9, 2026Opens in a new window

Popular airlines from Logan International Airport (BOS) to Luis Munoz Marin Intl. Airport (SJU)

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Cheap Flights from Boston to San Juan (BOS-SJU)

Prices were available within the past 7 days and start at $62 for one-way flights and $128 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Thu, Apr 9 - Sat, Apr 11
BOS
Boston
SJU
San Juan
$128 Roundtrip, just found
$128
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Apr 9 from Boston to San Juan, returning Sat, Apr 11, priced at $128 just found
Frontier Airlines
Tue, Apr 7 - Thu, Apr 9
BOS
Boston
SJU
San Juan
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 7 from Boston to San Juan, returning Thu, Apr 9, priced at $134 just found
Frontier Airlines
Tue, Apr 7 - Thu, Apr 9
BOS
Boston
SJU
San Juan
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 7 from Boston to San Juan, returning Thu, Apr 9, priced at $134 just found
Spirit Airlines
Tue, Apr 7 - Thu, Apr 9
BOS
Boston
SJU
San Juan
$134 Roundtrip, just found
$134
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Apr 7 from Boston to San Juan, returning Thu, Apr 9, priced at $134 just found
Frontier Airlines
Tue, Apr 7 - Sat, Apr 11
BOS
Boston
SJU
San Juan
$138 Roundtrip, just found
$138
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Apr 7 from Boston to San Juan, returning Sat, Apr 11, priced at $138 just found
Frontier Airlines
Thu, Apr 9 - Sat, Apr 11
BOS
Boston
SJU
San Juan
$144 Roundtrip, just found
$144
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Apr 9 from Boston to San Juan, returning Sat, Apr 11, priced at $144 just found
Frontier Airlines
Sat, Apr 4 - Thu, Apr 9
BOS
Boston
SJU
San Juan
$144 Roundtrip, found 4 hours ago
$144
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sat, Apr 4 from Boston to San Juan, returning Thu, Apr 9, priced at $144 found 4 hours ago
United
Wed, May 6 - Tue, May 12
BOS
Boston
SJU
San Juan
$294 Roundtrip, found 9 hours ago
$294
Roundtrip
found 9 hours ago
Select United flight, departing Wed, May 6 from Boston to San Juan, returning Tue, May 12, priced at $294 found 9 hours ago
Southwest Airlines
Tue, Apr 28 - Thu, May 7
BOS
Boston
SJU
San Juan
$294 Roundtrip, found 9 hours ago
$294
Roundtrip
found 9 hours ago
Select Southwest Airlines flight, departing Tue, Apr 28 from Boston to San Juan, returning Thu, May 7, priced at $294 found 9 hours ago
JetBlue Airways
Sun, Jun 14 - Mon, Jun 15
BOS
Boston
SJU
San Juan
$298 Roundtrip, found 1 hour ago
$298
Roundtrip
found 1 hour ago
Select JetBlue Airways flight, departing Sun, Jun 14 from Boston to San Juan, returning Mon, Jun 15, priced at $298 found 1 hour ago

Alternative airports near San Juan

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Luis Munoz Marin Intl. SJU. Cheapest option available. Average driving time to city center is 16 minutes. Flights from $160
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city center16 min
Flights from $160

Find the cheapest month to fly from Boston (BOS) to San Juan (SJU)

February is typically the cheapest month to fly

From $106 - $380 per traveler.

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) cost?
You can find cheap one-way flights from $62 and cheap return flights from $128 Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) with Expedia. One-way flights usually range from $144 to $1020, and return flights typically cost between $330 and $4082. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
January is the cheapest month to fly from Boston to San Juan, with average return fares around $334. This is about 15% lower than the average price throughout the year, as demand decreases after the holiday season. Other budget-friendly months include February and October.*Averages based on flights available on Expedia in the last year.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
4 airlines operate nonstop service from BOS to SJU:

  • JetBlue Airways operates around 31 direct flights from BOS to SJU every week
  • Delta operates around 8 direct flights from BOS to SJU every week
  • Spirit Airlines operates around 10 direct flights from BOS to SJU every week
  • Frontier Airlines operates around 7 direct flights from BOS to SJU every week

What is the cheapest airline that flies from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
JetBlue Airways is one of the cheapest airlines offering nonstop flights from Logan Intl. (BOS) to Luis Munoz Marin Intl. (SJU), with round-trip tickets starting from around $264. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
To find a cheap flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
The best airline to fly with from Boston, MA (BOS) to San Juan (SJU) will differ from traveler to traveler. If you like to fly early, Delta offers early morning flights. If price is the most important factor, Spirit Airlines typically offers the lowest fares. American Airlines offers the most daily flights from BOS to SJU, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
The best time to fly from Boston (BOS) to San Juan (SJU) is typically in January or October. During these months, you can find return flights at around $334, making them the cheapest options. January is particularly appealing as it follows the holiday rush, while October offers pleasant weather and fewer crowds, allowing for a more enjoyable travel experience.*Prices based on flights available on Expedia in the last year.
How many flights per day from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
On average, there are around 7 nonstop flights per day from Logan Intl. (BOS) to Luis Munoz Marin Intl. (SJU). For more options, look at flights that include layovers.
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
The earliest flight from Logan Intl. (BOS) to Luis Munoz Marin Intl. (SJU) typically departs at around 12:15 AM, operated by United. This seasonal service is available in December, allowing you to enjoy an early start to your trip to San Juan. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
The most popular departure times for flights from Boston (BOS) to San Juan (SJU) are from 6am to 9am. About 36% of passengers prefer this time window. Many major carriers, including American Airlines, Delta and United Airlines, offer flights during this window. This timing is popular because it allows you to arrive in San Juan with plenty of time to enjoy the day.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
Flying nonstop from BOS to SJU takes around 4 hours, with the route covering approximately 1,679 miles. Flights with a layover typically take 3 hours 20 minutes longer than direct options. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
You can fly first class between BOS and SJU. First class cabins are available on:

  • United Airlines
  • Delta Air Lines
  • Spirit Airlines

How much is a business class flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
A direct, return business class ticket from Boston (BOS) to San Juan (SJU) typically costs between $1,280 - $2,048. A non-stop, one-way business class flight is usually around $481 - $603. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) if you opt for a connecting flight.*Prices based on flights available on Expedia in the last year.
How do I earn miles on a Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) flight with Expedia?
It's easy to earn miles on a Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for San Juan from Logan Intl. (BOS)?
From Logan Intl. (BOS), you can fly into Luis Munoz Marin Intl. (SJU) to reach San Juan. Some flights may connect through major hubs like Liberty Intl. (EWR), O'Hare Intl. (ORD), Washington Dulles Intl. (IAD) before reaching San Juan. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) at the last minute?
Typically, booking a last minute flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) flight and hotel package?
Securing a Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
If you booked your Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

0
Origin airport
Logan Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$128
Distance
1679 mi

Book with confidence

Boston to San Juan Flights

The cheapest times to fly from Boston to San Juan

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boston to San Juan are during the month of April. You can find some of the cheapest flights from Boston to San Juan with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boston to San Juan

Sunday is one of the best days to book for cheap flights from Boston to San Juan: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boston to San Juan

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boston to San Juan in 2026. You can also book with separate airlines for your outbound and return journeys, from $62 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boston to San Juan flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boston to San Juan airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boston to San Juan Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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