BOS - SJU

Find Cheap Flights from Boston to San Juan

1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Juan, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to San Juan, as well as popular online travel agencies
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Boston to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Boston to San Juan

Qatar Airways Logo
BOS-SJU
4h 05mdirect
Qatar Airways Logo
SJU-BOS
4h 09mdirect
Qatar Airways
Find Deal
Japan Airlines Logo
BOS-SJU
3h 59mdirect
Japan Airlines Logo
SJU-BOS
4h 04mdirect
Japan Airlines
Find Deal
Frontier Logo
BOS-SJU
3h 48mdirect
Frontier Logo
SJU-BOS
4h 14mdirect
Frontier
Find Deal
Icelandair Logo
BOS-SJU
3h 59mdirect
Icelandair Logo
SJU-BOS
4h 04mdirect
Icelandair
Find Deal
JetBlue Logo
BOS-SJU
3h 58mdirect
JetBlue Logo
SJU-BOS
4h 04mdirect
JetBlue
Find Deal
Etihad Airways Logo
BOS-SJU
3h 59mdirect
Etihad Airways Logo
SJU-BOS
4h 12mdirect
Etihad Airways
Find Deal
Aer Lingus Logo
BOS-SJU
4h 02mdirect
Aer Lingus Logo
SJU-BOS
4h 04mdirect
Aer Lingus
Find Deal
Turkish Airlines Logo
BOS-SJU
4h 00mdirect
Turkish Airlines Logo
SJU-BOS
4h 18mdirect
Turkish Airlines
Find Deal
Delta Logo
BOS-SJU
4h 05mdirect
Delta Logo
SJU-BOS
4h 26mdirect
Hawaiian Airlines Logo
BOS-SJU
3h 58mdirect
Hawaiian Airlines Logo
SJU-BOS
4h 04mdirect
Hawaiian Airlines
Find Deal
TAP AIR PORTUGAL Logo
BOS-SJU
3h 59mdirect
TAP AIR PORTUGAL Logo
SJU-BOS
4h 04mdirect
TAP AIR PORTUGAL
Find Deal
Spirit Airlines Logo
BOS-SJU
3h 54mdirect
Spirit Airlines Logo
SJU-BOS
4h 07mdirect
Spirit Airlines
Find Deal
EL AL Logo
BOS-SJU
4h 04mdirect
EL AL Logo
SJU-BOS
4h 12mdirect

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
JetBlue offers free Wi-Fi and live TV for all passengers.
Frontier's carry-on bags have fees; pay early to save.
Expert advice
Expert advice
Expert advice
Expert advice
When to travel
September
Cheapest • 28% price drop
February
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest return fare
Qatar Airways
Fri 12/9
BOS - SJU • Direct
Cheapest one-way flight
Qatar Airways
Fri 12/9
BOS - SJU • Direct
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Expert advice

Expert advice for your flight from Boston to San Juan

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Frontier

Frontier’s Premium Bundle includes priority boarding and extra legroom for just CA$27 more.


Frontier charges for carry-on bags; pay early online to save money.

Read more about Frontierby Stefanie Waldek
JetBlue

JetBlue offers free gate-to-gate Wi-Fi and live TV channels for all passengers.


JetBlue’s Even More Space upgrade provides up to 18 cm extra legroom and priority boarding.

Read more about JetBlueby Harriet Baskas
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Frontier

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or out at sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on JetBlue

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, The Points Guy, and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Booking Insights

KAYAK's insights & trends for Boston to San Juan flights

Get data-powered insights and trends into flights from Boston to San Juan to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boston to San Juan?

The average price of all round-trip flights from Boston to San Juan Luis Munoz Marin Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to San Juan, look for departures on Saturdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from San Juan, Wednesday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Boston to San Juan Luis Munoz Marin Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to San Juan Luis Munoz Marin Intl Airport is September, where tickets cost £151 (return) on average. On the other hand, the most expensive months are December and July, where the average cost of round-trip tickets is £283 and £244 respectively.

How far in advance should I book a flight from Boston to San Juan Luis Munoz Marin Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to San Juan Luis Munoz Marin Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to San Juan Luis Munoz Marin Intl Airport, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know - Cheap tickets from Boston to San Juan

Low seasonSeptember
Best time to beat the crowds (28% less expensive on average)
Most popular time to fly (5% more expensive on average)

When to book flights from Boston to San Juan

Are your dates flexible? Find out the best times to travel from Boston to San Juan based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Boston to San Juan flights

  • Which airlines offer Wi-Fi service onboard planes from Boston to San Juan?

    JetBlue, Delta, and American Airlines offer inflight Wi-Fi service on the Boston to San Juan flight route.

  • Which aircraft models fly most regularly from Boston to San Juan?

    The Airbus A321neo is the aircraft model that flies most regularly on the Boston to San Juan flight route.

  • Which airline alliances offer flights from Boston to San Juan?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Boston and San Juan, with SkyTeam being the most commonly used for this route.

  • On which days can I fly direct from Boston to San Juan?

    There are direct flights from Boston to San Juan on a daily basis.

  • How does KAYAK find such low prices on flights from Boston to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Boston is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to San Juan with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to San Juan Luis Munoz Marin Intl Airport

  • Looking for a cheap flight from San Juan to Boston? 25% of our users found flights on this route for £168 or less one-way.

Prefer to fly direct from Boston to San Juan?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to San Juan Luis Munoz Marin Intl.
Find which airlines fly direct from Boston Logan Intl Airport to San Juan Luis Munoz Marin Intl Airport, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to San Juan Luis Munoz Marin Intl

Monday

Delta, JetBlue

Delta, JetBlue

Tuesday

Delta, JetBlue

Delta, JetBlue

Wednesday

Delta, JetBlue

Delta, JetBlue

Thursday

Delta, JetBlue

Delta, JetBlue

Friday

Delta, JetBlue

Delta, JetBlue

Saturday

Delta, JetBlue

Delta, JetBlue

Sunday

Delta, JetBlue

Delta, JetBlue

See more direct flights

Direct returns

San Juan Luis Munoz Marin Intl to Boston Logan Intl

Monday

Delta, JetBlue

Delta, JetBlue

Tuesday

Delta, JetBlue

Delta, JetBlue

Wednesday

Delta, JetBlue

Delta, JetBlue

Thursday

Delta, JetBlue

Delta, JetBlue

Friday

Delta, JetBlue

Delta, JetBlue

Saturday

Delta, JetBlue

Delta, JetBlue

Sunday

Delta, JetBlue

Delta, JetBlue

See more direct flights

Reviews of the top airline flying from Boston to San Juan

 
See real verified KAYAK customer reviews for airlines flying from Boston to San Juan. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to San Juan? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
JetBlueOverall score based on 2913 reviews
7.4Boarding
7.3Entertainment
7.6Comfort
6.7Food
8.0Crew
Airline reviews

very difficult boarding process - aggressive passengers not the friendliest crew

6.0 Gooddavid, Sept 2025PBI - BOS
Read more JetBlue reviews

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

JetBlue is always consistent and great, the food is limited in selection, but at least you can grab as much as you want on snacks and drinks at the Blue Locker.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

Everything you need to know for your flight from Boston to San Juan

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