£120 Cheap Flights from Boston (BOS) to San Juan (SJU)

View £120 flight on Mon, 1 Jun 2026Opens in a new window

Flight 1

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at £120 for one-way flights and £225 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Sat, 9 May - Wed, 13 May
BOS
Boston
SJU
San Juan
£225 Return, found 6 days ago
£225
Return
found 6 days ago
Select JetBlue Airways flight, departing Sat, 9 May from Boston to San Juan, returning Wed, 13 May, priced at £225 found 6 days ago
Delta
Sat, 17 Oct - Fri, 30 Oct
BOS
Boston
SJU
San Juan
£225 Return, found 2 days ago
£225
Return
found 2 days ago
Select Delta flight, departing Sat, 17 Oct from Boston to San Juan, returning Fri, 30 Oct, priced at £225 found 2 days ago
Delta
Sat, 17 Oct - Sun, 1 Nov
BOS
Boston
SJU
San Juan
£229 Return, found 2 days ago
£229
Return
found 2 days ago
Select Delta flight, departing Sat, 17 Oct from Boston to San Juan, returning Sun, 1 Nov, priced at £229 found 2 days ago
Delta
Tue, 21 Jul - Mon, 10 Aug
BOS
Boston
SJU
San Juan
£232 Return, found 2 days ago
£232
Return
found 2 days ago
Select Delta flight, departing Tue, 21 Jul from Boston to San Juan, returning Mon, 10 Aug, priced at £232 found 2 days ago
JetBlue Airways
Fri, 1 May - Fri, 8 May
BOS
Boston
SJU
San Juan
£247 Return, found 4 days ago
£247
Return
found 4 days ago
Select JetBlue Airways flight, departing Fri, 1 May from Boston to San Juan, returning Fri, 8 May, priced at £247 found 4 days ago
JetBlue Airways
Mon, 11 May - Thu, 14 May
BOS
Boston
SJU
San Juan
£247 Return, found 19 hours ago
£247
Return
found 19 hours ago
Select JetBlue Airways flight, departing Mon, 11 May from Boston to San Juan, returning Thu, 14 May, priced at £247 found 19 hours ago
Delta
Fri, 23 Oct - Tue, 10 Nov
BOS
Boston
SJU
San Juan
£251 Return, found 2 days ago
£251
Return
found 2 days ago
Select Delta flight, departing Fri, 23 Oct from Boston to San Juan, returning Tue, 10 Nov, priced at £251 found 2 days ago
JetBlue Airways
Sat, 7 Nov - Fri, 20 Nov
BOS
Boston
SJU
San Juan
£254 Return, found 2 days ago
£254
Return
found 2 days ago
Select JetBlue Airways flight, departing Sat, 7 Nov from Boston to San Juan, returning Fri, 20 Nov, priced at £254 found 2 days ago
American Airlines
Sun, 7 Mar - Sat, 13 Mar
BOS
Boston
SJU
San Juan
£254 Return, found 2 days ago
£254
Return
found 2 days ago
Select American Airlines flight, departing Sun, 7 Mar from Boston to San Juan, returning Sat, 13 Mar, priced at £254 found 2 days ago
United
Wed, 28 Oct - Sat, 14 Nov
BOS
Boston
SJU
San Juan
£299 Return, found 2 days ago
£299
Return
found 2 days ago
Select United flight, departing Wed, 28 Oct from Boston to San Juan, returning Sat, 14 Nov, priced at £299 found 2 days 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 centre is 16 minutes. Flights from £247
SJU
Luis Munoz Marin Intl.
Cheapest
Average driving time to city centre16 min
Flights from £247

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

April is typically the cheapest month to fly

From £116 - £330 per traveller.

Frequently asked questions

How much does a flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) cost?
One-way flights typically cost between £260 and £1,496 and return flights often range between £563 and £4,470. 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 Anaa (AAA) to Toronto, ON (YYZ-Pearson Intl.) ticket fares go up or down.
What is the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
January is typically the cheapest month to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.), with average return fares of approximately £464. This is about 14% lower than the average price throughout the year. January sees lower prices because it falls after the holiday travel rush, when demand drops and airlines compete for bookings. Other cheap months to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) include February and October.
Which airlines fly direct from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
Enter BOS to SJU and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
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-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) will differ from traveller to traveller. If you like to fly early, DL offers early morning flights. If price is the most important factor, NK typically offers the lowest fares. AA offers the most daily flights from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.), which is brilliant 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.)?
When looking for the best time to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.), it's helpful to consider both price and popularity. Based on booking data from the past year, you'll find the cheapest flights in January and October, with average prices around £464. However, the most popular months for this route are February and March, meaning there are plenty of flight options available then. If you're prioritizing savings, aim for January or October. If you prefer more choice and don't mind slightly higher fares, February and March are great options.
How many flights per day from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
When flying from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.), you'll find approximately 6 nonstop flights per day. For even more choice, look at flights that include layovers, as there are around 97 connecting flights per day. Some common connection points include Baltimore Washington Intl. Thurgood Marshall (BWI), John F. Kennedy Intl. (JFK), and Philadelphia Intl. (PHL).
What is the earliest flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
The earliest flight from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) typically departs at approximately 12:15 AM local time, operated by United Airlines. This is a seasonal service active in December. An early departure like this can help you maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
You'll typically find the most flights from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) on a Friday, with around 88 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include American Airlines, JetBlue Airways, and United Airlines. Fridays offer notably more flight options compared to other days of the week.
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, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.) are in the early morning, from 6am to 9am. About 34% of passengers prefer this time window. Many major carriers, including American Airlines, Delta and United Airlines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive in San Juan with plenty of time to settle in.
How long does it take to fly from Boston, MA (BOS-Logan Intl.) to San Juan (SJU-Luis Munoz Marin Intl.)?
A nonstop flight from BOS to SJU typically takes around 4 hours, covering approximately 1,679 miles. Connecting flights on this route usually add 3 hours 30 minutes to your travel time. 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.)?
Select the "Business class" and "First class" filters when looking for BOS to SJU flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
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 directly 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), Baltimore Washington Intl. Thurgood Marshall (BWI) 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

Origin airport
Logan Intl.
Destination airport
Luis Munoz Marin Intl.
Airlines serving
JetBlue Airways
Return price
£224
Distance
2686 km
Average flight time
4 hours 1 min

Book with confidence

Compare flights from Boston to San Juan easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Boston to San Juan. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Luis Munoz Marin Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Logan Intl. to Luis Munoz Marin Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Logan Intl. (BOS) to Luis Munoz Marin Intl. (SJU)

The easiest way to view the best deals on flights from Boston to San Juan today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Logan Intl. to Luis Munoz Marin Intl. start at just £225 and range up to £299.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Boston and San Juan
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Boston to San Juan flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Logan Intl. to Luis Munoz Marin Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Boston to San Juan easily and book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.