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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Flights 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 round-trip 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 round-trip flight deals from Boston to San Juan

Qatar Airways Logo
BOS-SJU
4h 00mdirect
Qatar Airways Logo
SJU-BOS
4h 04mdirect
Qatar Airways
Find Deal
Japan Airlines Logo
BOS-SJU
4h 04mdirect
Japan Airlines Logo
SJU-BOS
4h 04mdirect
Japan Airlines
Find Deal
Icelandair Logo
BOS-SJU
4h 06mdirect
Icelandair Logo
SJU-BOS
4h 04mdirect
Icelandair
Find Deal
JetBlue Logo
BOS-SJU
3h 59mdirect
JetBlue Logo
SJU-BOS
4h 04mdirect
JetBlue
Find Deal
Aer Lingus Logo
BOS-SJU
4h 00mdirect
Aer Lingus Logo
SJU-BOS
4h 08mdirect
Aer Lingus
Find Deal
Etihad Airways Logo
BOS-SJU
4h 00mdirect
Etihad Airways Logo
SJU-BOS
4h 09mdirect
Etihad Airways
Find Deal
Turkish Airlines Logo
BOS-SJU
4h 01mdirect
Turkish Airlines Logo
SJU-BOS
4h 08mdirect
Turkish Airlines
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Delta Logo
BOS-SJU
4h 06mdirect
Delta Logo
SJU-BOS
4h 14mdirect
Hawaiian Airlines Logo
BOS-SJU
3h 59mdirect
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 08mdirect
TAP AIR PORTUGAL
Find Deal
EL AL Logo
BOS-SJU
4h 07mdirect
EL AL Logo
SJU-BOS
4h 07mdirect
Spirit Airlines Logo
BOS-SJU
4h 05mdirect
Spirit Airlines Logo
SJU-BOS
4h 07mdirect
Spirit Airlines
Find Deal
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 on the 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, USA TODAY, 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
Useful Info

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 Wednesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from San Juan, Sunday is the cheapest day to fly and Friday 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 C$ 215 (return) on average. On the other hand, the most expensive months are December and April, where the average cost of round-trip tickets is C$ 537 and C$ 422 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

Low seasonSeptember
High seasonFebruary
Best time to beat the crowds (42% less expensive on average)
Most popular time to fly (11% 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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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, oneworld, and Star Alliance are the airline alliances operating flights between Boston and San Juan, with oneworld 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 round-trip 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.

Prefer to fly direct from Boston to San Juan?

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

Aer Lingus,Delta,EL AL, +7 more

Aer Lingus,Delta, +8 more

Tuesday

Aer Lingus,Delta,Etihad Airways, +6 more

Aer Lingus,Delta, +7 more

Wednesday

Aer Lingus,Delta,EL AL, +7 more

Aer Lingus,Delta, +8 more

Thursday

Aer Lingus,Delta,EL AL, +8 more

Aer Lingus,Delta, +9 more

Friday

Aer Lingus,Delta,EL AL, +7 more

Aer Lingus,Delta, +8 more

Saturday

Aer Lingus,Delta,Etihad Airways, +6 more

Aer Lingus,Delta, +7 more

Sunday

Aer Lingus,Delta,EL AL, +8 more

Aer Lingus,Delta, +9 more

See more nonstop flights

Direct returns

San Juan Luis Munoz Marin Intl to Boston Logan Intl

Monday

Aer Lingus,Delta,EL AL, +10 more

Aer Lingus,Delta, +11 more

Tuesday

Aer Lingus,Delta,Etihad Airways, +8 more

Aer Lingus,Delta, +9 more

Wednesday

Aer Lingus,Delta,EL AL, +10 more

Aer Lingus,Delta, +11 more

Thursday

Aer Lingus,Delta,EL AL, +10 more

Aer Lingus,Delta, +11 more

Friday

Aer Lingus,Delta,Etihad Airways, +9 more

Aer Lingus,Delta, +10 more

Saturday

Aer Lingus,Delta,EL AL, +9 more

Aer Lingus,Delta, +10 more

Sunday

Aer Lingus,Delta,EL AL, +11 more

Aer Lingus,Delta, +12 more

See more nonstop flights
See more nonstop flights

Top 4 airlines serving 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.
8.0
DeltaOverall score based on 7946 reviews
7.3Food
7.9Entertainment
8.2Boarding
7.9Comfort
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Great flight! Only complaint I had was that I didn’t get breakfast that morning because I don’t eat eggs for breakfast.. I ate an energy bar I bought in the airport which I had never done before. Otherwise, another great Delta flight!

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am still upset that my bag was lost on a recent trip to Rome ; we were inconvenienced and out €150 Euros ; delta has refused to reimburse us

Communication since no reason or explanation was given for 3 hrs delay

The flight departed more than 1 hour late. Leg room is bigger than most airlines

Flight was delayed several 3 hours - no reason was given and no communication what so ever.

No overhead baggage room even though I was seated in row 2. Consequently had to check in my carry on bag. Baggage carousel was jammed. Took 45 min to get my bag.

Excellent from start to finish. All staff members were amazing!

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

Cancelled flight with no specific instructions to get a boarding pass for another flight. The whole flight of people were in line for an hour because there was only 1 person to help at the desk. This was unusual for JetBlue.

It was too hot in the cabin. The AC did not help.

Except for the 28 minute delay leaving and the earlier reschedule to a later takeoff time the flight was good.

Loved the leg room and tvs screens on the seats and free WiFi. Wish the price was lower and could save by rebooking

Boarding was a breeze, however, two of the flights that I boarded with Spirit did not have Wi-Fi available.

Seats uncomfortable, hard to check luggage, etc. It was like the last flight out of Hanoi

Need screens for tv/movies. Seats are more cramped than any other airlines. Seats are hard. They don’t recline. And in flight time should not be used for sales pitches.

Good experience except for the drunk woman who was with a child. Sad

The ease of booking the flight was very good. Speaking with customer service was also good. However, the crew people are unfriendly and unwelcoming which I found this as unprofessional. As far as comfort it was mediocre. This was my first time flying Spirit and I chose them because of the flight times met my needs and my budget. However, I would be reluctant to fly on Spirit again. In addition, if the crew were more friendly and at least appeared somewhat happy and welcoming personally it would probably make the experience of flying with Spirit better.

Tell them to chose a better, less bumpy route :( my seat had no window all the way at the end 😔

Seats too hard, too much lumbar. Space between rows was extremely tight, so tight hard to place item under seat in front of me. No tv screens. Zero plugs for charging phones. Too many sales pitches

Prepaid for 1 bag but my prior airline did not provide it to me in time to check it with Spirit and I could not get my $75 refunded.

Plane delayed which seems to be the norm with spirt. Everything is an up charge. I had to pay an additional fee because I was late getting back to my car. Will never fly spirit again

It was horrible. We were not allowed on the flight by spirit staff at the gate during boarding because I had a guitar. The same guitar I had at check in which I paid for and they said I can take it on the plane. We missed our flight, lost our luggage, and had to pay another $900 to rebook flights. Worst travel experience ever and spirit staff are the worst staff ever.

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

I never got to experience the flight because they delayed my first flight and I missed this one. Then Frontier didn't want to help me rebook a flight to get me to my final destination.

The Boarding process in Denver was chaotic, and since the line was so long, we were lined up very far from the gate. If there were any announcements from the gate staff, we didn't hear them. The flight attendants were spectacular. The only negative part of the flight was sitting by a 2 1/2 year old who was unruly and unfortunately had parents that matched his behaviors. Also, the restaurants in Denver on the E concourse, they didn't have food (passengers could only order 1 item on the entire menu) or the restaurants had 12-14 people waiting for orders to be prepared and another 6 people waiting to order. If you have a layover in Denver and need to grab food, be prepared to visit the shops with pre-packaged sandwiches, or you can visit another concourse but it may take a while to transit throughout the airport.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

Although an hour and a half early was told by staff at check in they had overbooked and could not check us in for the flight.

The crew was delayed because they came on another flight that was delayed due to weather 10pm flight left at 1.30 am The airline made no effort to align alternate crew

I liked the price of the flight and the chance to buy a seat with no person seated in the middle seat.. Also the flight was right on time.

Plane was down graded and I lost my uncharged exit row with more leg room. No mention or offer of refund from podium. Flight attendant was nice to explain this happens often and that I could request a refund via online form submission. I did this and have heard nothing back.

Worst airline experience. They were rude and kept changing our seats and/or giving our seats away so our family didn’t get to sit with each other. Almost everyone we dealt with at both airports with this airline was rude. The app kept giving us wrong information making things take longer. Dealing with them before TSA can take close to an hour…longer than I’ve ever had to deal with before. Never using this airline again.

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

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