SJU - BOS

£121 Find Cheap Flights from San Juan to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Juan to Boston departing on 23/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult

KAYAK searches hundreds of travel sites at once for deals on flights to Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Juan to Boston, 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 San Juan to Boston, as well as popular online travel agencies
Travellers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 26% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Expert advice
Useful Info
Flights Deals

Cheap Flight Deals from San Juan to Boston (SJU-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Juan to Boston 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.

Recent return flight deals from San Juan to Boston

KAYAK's recommended return flight deals from the most popular airlines that fly from San Juan to Boston.
Discover the best prices for you by selecting your travel dates on KAYAK.
JetBlue Logo
19:00 - 23:04SJU-BOS
4h 04mdirect
JetBlue Logo
12:00 - 16:00BOS-SJU
4h 00mdirect
£160JetBlue
Find Deal
Fri, 12 Sep - Mon, 15 Sep
JetBlue Logo
19:00 - 23:04SJU-BOS
4h 04mdirect
JetBlue Logo
12:00 - 16:00BOS-SJU
4h 00mdirect
£167JetBlue
Find Deal
Wed, 10 Sep - Sat, 13 Sep
Delta Logo
13:25 - 17:45SJU-BOS
4h 20mdirect
Delta Logo
08:10 - 12:17BOS-SJU
4h 07mdirect
£201Delta
Find Deal
Fri, 22 Aug - Tue, 2 Sep
Delta Logo
13:25 - 17:45SJU-BOS
4h 20mdirect
Delta Logo
05:25 - 13:10BOS-SJU
7h 45m1 stop
£204Delta
Find Deal
Fri, 5 Sep - Fri, 12 Sep
United Airlines Logo
01:05 - 10:35SJU-BOS
9h 30m2 stops
United Airlines Logo
15:16 - 23:57BOS-SJU
8h 41m1 stop
£233United Airlines
Find Deal
Wed, 17 Sep - Mon, 22 Sep
United Airlines Logo
01:05 - 10:35SJU-BOS
9h 30m2 stops
United Airlines Logo
05:30 - 12:34BOS-SJU
7h 04m1 stop
£267United Airlines
Find Deal
Wed, 24 Sep - Tue, 30 Sep
Southwest Logo
05:00 - 16:25SJU-BOS
11h 25m2 stops
Southwest Logo
13:15 - 23:50BOS-SJU
10h 35m2 stops
£306Southwest
Find Deal
Thu, 18 Sep - Mon, 22 Sep
Southwest Logo
05:00 - 16:25SJU-BOS
11h 25m2 stops
Southwest Logo
10:45 - 20:45BOS-SJU
10h 00m2 stops
£307Southwest
Find Deal
Fri, 12 Sep - Mon, 15 Sep
Alaska Airlines Logo
06:30 - 07:40SJU-BOS
25h 10m2 stops
Alaska Airlines Logo
08:40 - 14:00BOS-SJU
29h 20m2 stops
£580Alaska Airlines
Find Deal
Tue, 27 May - Sat, 31 May
Alaska Airlines Logo
00:59 - 07:40SJU-BOS
30h 41m2 stops
Alaska Airlines Logo
08:40 - 05:06BOS-SJU
20h 26m2 stops
£626Alaska Airlines
Find Deal
Sat, 7 Jun - Wed, 11 Jun
Expert advice

Expert advice for your flight from San Juan to Boston

 
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 specific 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
Icelandair

Icelandair's Saga Premium offers extra recline and free Wi-Fi, enhancing comfort on medium-haul flights.


Icelandair's Economy Flex includes a checked bag and free seat selection, adding value to your travel.

Read more about Icelandairby Stefanie Waldek
JetBlue

JetBlue's Even More Space upgrade provides up to 18 cm extra legroom, perfect for a more comfortable journey.


Enjoy free gate-to-gate Wi-Fi on JetBlue, allowing you to stay connected throughout your flight.

Read more about JetBlueby Harriet Baskas
Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing your travel experience.


Delta's Comfort Plus seats offer up to 8 cm extra legroom, ideal for added comfort on medium-haul flights.

Read more about Deltaby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Icelandair and Delta

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
Useful Info

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

Get data-powered insights and trends into flights from San Juan to Boston 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 San Juan to Boston?

The average price of all round-trip flights from San Juan Luis Munoz Marin Intl Airport to Boston clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Boston on a Wednesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from San Juan to Boston. For your return ticket, we recommend flying on a Tuesday and avoiding Fridays for the best deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Boston, 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 San Juan Luis Munoz Marin Intl Airport to Boston is September, where tickets cost £104 (return) on average. On the other hand, the most expensive months are June and April, where the average cost of round-trip tickets is £189 and £181 respectively.

Can I save money by flying with a stopover from San Juan Luis Munoz Marin Intl Airport to Boston?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.
No, with an average price for the route of £83, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Juan Luis Munoz Marin Intl Airport to Boston, 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 San Juan Luis Munoz Marin Intl Airport to Boston, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know - Cheap tickets from San Juan to Boston

Low season

March

High season

July

Cheapest flight

£121
Best time to beat the crowds (2% less expensive on average)
Most popular time to fly (12% more expensive on average)
Flight from San Juan to Boston

When to book flights from San Juan to Boston

Are your dates flexible? Find out the best times to travel from San Juan to Boston 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 San Juan to Boston flights

  • What is the cheapest flight from San Juan Luis Munoz Marin Intl Airport to Boston?

    In the last 3 days, the lowest price for a flight from San Juan Luis Munoz Marin Intl Airport to Boston was £162 for a one-way ticket and £214 for a return.

  • Which airports will I be using when flying from San Juan to Boston?

    When flying out of San Juan you will be using San Juan Luis Munoz Marin Intl. You will be landing at Boston, also known as Boston Logan Intl.

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

    All the following airlines offer inflight Wi-Fi service on the San Juan to Boston flight route: JetBlue, Iberia, British Airways, Finnair, Delta, and American Airlines.

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

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

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

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

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

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

  • Which is the best airline for flights from San Juan to Boston, Delta or JetBlue?

    The two airlines most popular with KAYAK users for flights from San Juan to Boston are Delta and JetBlue. With an average price for the route of £166 and an overall rating of 8.0, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of £192 and an overall rating of 7.3.

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

    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 San Juan to Boston.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from San Juan 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 San Juan to Boston?

    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 Boston with an airline and back to San Juan with another airline.

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

    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 Boston from San Juan up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from San Juan to Boston?

Find which airlines fly direct from San Juan Luis Munoz Marin Intl Airport to Boston Logan Intl Airport, which days they fly and book direct flights.

Direct departures

San Juan Luis Munoz Marin Intl to Boston Logan Intl

Monday

Aer Lingus, Delta, EL AL, +11 more

Aer Lingus, Delta, +12 more

Tuesday

Aer Lingus, Delta, Etihad Airways, +10 more

Aer Lingus, Delta, +11 more

Wednesday

Aer Lingus, Delta, EL AL, +11 more

Aer Lingus, Delta, +12 more

Thursday

Aer Lingus, Delta, EL AL, +11 more

Aer Lingus, Delta, +12 more

Friday

Aer Lingus, Delta, Etihad Airways, +10 more

Aer Lingus, Delta, +11 more

Saturday

Aer Lingus, Delta, EL AL, +10 more

Aer Lingus, Delta, +11 more

Sunday

Aer Lingus, Delta, EL AL, +12 more

Aer Lingus, Delta, +13 more

See more direct flights

Direct returns

Boston Logan Intl to San Juan Luis Munoz Marin Intl

Monday

Aer Lingus, Delta, EL AL, +8 more

Aer Lingus, Delta, +9 more

Tuesday

Aer Lingus, Delta, Etihad Airways, +7 more

Aer Lingus, Delta, +8 more

Wednesday

Aer Lingus, Delta, EL AL, +7 more

Aer Lingus, Delta, +8 more

Thursday

Aer Lingus, Delta, EL AL, +9 more

Aer Lingus, Delta, +10 more

Friday

Aer Lingus, Delta, EL AL, +8 more

Aer Lingus, Delta, +9 more

Saturday

Aer Lingus, Delta, Etihad Airways, +7 more

Aer Lingus, Delta, +8 more

Sunday

Aer Lingus, Delta, EL AL, +9 more

Aer Lingus, Delta, +10 more

See more direct flights
See more direct flights

Top 4 airlines serving from San Juan to Boston

 
See real verified KAYAK customer reviews for airlines flying from San Juan to Boston. 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 San Juan to Boston? 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 7936 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

8.0 ExcellentFredrick, Apr 2025GSO - DTW
Read more Delta reviews

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

Delta is a cut above the others in customer service.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

I love the free WiFi!! Crew was nice. Bathroom was decent. First time flying delta in a long time and I enjoyed it. Will definitely look into booking with Delta more but I think Delta is a little more expensive than the other airlines.

Great flight. Departed early, arrived early. However they were out of meals for sale. Also, we arrived early and the gate was not available so we sat on the taxiway for quite a while (not JetBlue’s fault).

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

Love the mosaic program, being able to move to an extra space seat for free is awesome

Smooth boarding and friendly crew. Unfortunately as soon as we boarded the unit that provides air circulation failed. The pilot informed us and requested maintenance technicians to check it out. The plane became uncomfortably warm without any fresh air coming in. Plus the repair delayed our departure. I am glad the maintenance crew were able to fix the problem. I also was without use of my tv monitor for the first 1/3rd of the trip.

I like their airplanes because they have plenty of legroom in their seats they always work with me if I have a change of plans on my tickets courteous and I always feel safe flying with them.

I paid for the service of having the right to choose my seat and it was not like that, they put me where they wanted and I explained to one of the staff that they were before boarding and they were very rude. I am traveling with the family and they put us in separate seats.

Everything was great except for some reason crew and ground crew could not figure out how to deal with an electric wheelchair and it delayed us 20-30mins. Was pretty frustrating for passengers and the captain.

The flights are back on time and everything else runs perfectly.

They announced at the last minute that international travelers had to checkin at counter. This created a long line and unnecessary stress.

Great! I love Jet Blue. My favorite airline! Very efficient, clean and timely.

The only positive is that the flight made it both ways. Getting charged for every little thing after the cost of the ticket itself is comical, considering how the plane and services are as bottom-tier as possible. The self check-in kiosks are useless. It’s nice to think that you can print your boarding pass, tag your checked bag, and then just drop it off. But no, they still make you go through the line once you finish- what’s the point of the self check-in then? Any questions for the staff seem like the biggest inconvenience and were met with condescending responses. This was my first and now last time ever flying with Spirit. After all the extra costs, subpar plane and staff, I see no value. I’d rather drive the 13 hours than give Spirit another dime.

The flight was fine however what started as a reasonable priced ticket could have become an overpriced ticket with additional charge for carry on as well as checked bag $79 per bag per person each way. Additional charge for choosing one’s seat, additional charge for beverage and snack, we were on what was described as a new plane yet there were no audio/visual on the jet. A bare bones service but not at a bare bones price. Will think twice before flying Spirit again. 😕

Flight was delayed a bit, but that was expected (and updated), so really not bad at all for the price. Could’ve used one less email asking me to upgrade my seat; otherwise no significant complaints

I love Spirit. New aircraft, great cabin service, the airfares are low cost which helps me visit my hospitalized daughter anytime I can without paying a fortune.

Flight was 2hours late they had no crew or the pilot.

I paid for streaming wifi and the connection was poor.

We had an 8 hr delay so it was not good

The flight attendant spilled ice all down my leg and all over my suede boots and didn’t even apologize or anything. They just gave me a look like “what?!” Incredibly rude and dismissive. I saw them roll their eyes at other guests and even once yell at a lady with a baby.

terrible service, no room for a dog underfoot, a broken chair that is impossible to sit on and all this costs a lot of money

Easy boarding. Met expectations for a 2-3 hour flight. Early arrival at DFW caused a 39 minute delay on the tarmac in getting to our gate. 😏 overall, good flight.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

I guess you get what you pay for. The seats are very uncomfortable and very little space. The snacks were pricey.

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.