SJU - BOS

$124 Find Cheap Flights from San Juan Airport 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 Luis Munoz Marin Intl to Boston departing on 12/24. 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
1 adult, Economy, 0 bags

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
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Everything you should know

Cheapest round-trip
$182
Typical prices: $123-$278
Spirit Airlines
Fri 12/26Wed 1/7
SJU - BOS • Non-stop
Cheapest one-way
$124
Typical prices: $88-$211
Delta
Wed 12/24
SJU - BOS • 1 stop
Our travelers' advice
AI-generated summary based on content written by travel experts
JetBlue's Even More Space seats add 7” extra legroom.
The Silver Line bus is free from BOS to South Station.
Expert advice
Expert advice
Expert advice
Expert advice
Video guide: How to find cheap flights to Boston
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Top airlines
Spirit Airlines
Cheapest • from $182 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 31% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals

Cheap Flights from Luis Munoz Marin Intl to Boston (SJU-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Luis Munoz Marin Intl 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Luis Munoz Marin Intl to Boston

Fri, Dec 26 - Wed, Jan 7
Spirit Airlines Logo
3:15 pm - 6:39 pmSJU-BOS
4h 24mnonstop
Spirit Airlines Logo
7:34 pm - 12:41 amBOS-SJU
4h 07mnonstop
$182Spirit Airlines
Find Deal
Tue, Dec 23 - Sun, Jan 11
Frontier Logo
4:19 pm - 1:24 amSJU-BOS
10h 05m1 stop
Frontier Logo
12:43 pm - 5:47 pmBOS-SJU
4h 04mnonstop
$185Frontier
Find Deal
Sat, Dec 20 - Tue, Dec 30
Multiple Airlines Logo
3:15 pm - 6:39 pmSJU-BOS
4h 24mnonstop
Multiple Airlines Logo
6:00 am - 1:06 amBOS-SJU
42h 06m2 stops
$186Multiple Airlines
Find Deal
Tue, Dec 23 - Sun, Jan 11
Frontier Logo
8:00 am - 11:23 amSJU-BOS
4h 23mnonstop
Frontier Logo
8:48 am - 1:42 amBOS-SJU
15h 54m2 stops
$187Frontier
Find Deal
Sat, Feb 28 - Sun, Mar 1
Frontier Logo
6:00 am - 9:23 amSJU-BOS
4h 23mnonstop
Frontier Logo
10:24 am - 3:28 pmBOS-SJU
4h 04mnonstop
$190Frontier
Find Deal
Tue, Dec 23 - Sun, Jan 4
Frontier Logo
4:19 pm - 1:24 amSJU-BOS
10h 05m1 stop
Frontier Logo
10:18 am - 3:22 pmBOS-SJU
4h 04mnonstop
$191Frontier
Find Deal
Tue, Dec 23 - Tue, Jan 6
Multiple Airlines Logo
3:54 am - 10:08 amSJU-BOS
31h 14m2 stops
Multiple Airlines Logo
7:34 pm - 12:41 amBOS-SJU
4h 07mnonstop
$201Multiple Airlines
Find Deal
Wed, Dec 24 - Thu, Jan 1
Delta Logo
3:45 am - 11:12 amSJU-BOS
8h 27m1 stop
Delta Logo
8:30 am - 1:35 pmBOS-SJU
4h 05mnonstop
$243Delta
Find Deal
Sat, Dec 20 - Thu, Jan 1
JetBlue Logo
1:59 am - 7:41 amSJU-BOS
6h 42m1 stop
JetBlue Logo
8:00 pm - 1:05 amBOS-SJU
4h 05mnonstop
$252JetBlue
Find Deal
Sun, Dec 21 - Thu, Jan 1
JetBlue Logo
1:59 am - 7:41 amSJU-BOS
6h 42m1 stop
JetBlue Logo
5:01 am - 10:00 amBOS-SJU
3h 59mnonstop
$253JetBlue
Find Deal
Booking Insights

KAYAK's insights & trends for Luis Munoz Marin Intl to Boston flights

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

Find cheap flights to Boston
Find cheap flights to Boston

Planning a trip from Luis Munoz Marin Intl to Boston? KAYAK’s data-powered insights will help you find cheap flights. Learn the best time to fly, how early to book your ticket, and other tips to secure great prices.

How much is a round-trip flight from San Juan Luis Munoz Marin Intl Airport to Boston?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Boston departing in December.

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

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 February, where tickets cost $172 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $310 and $304 respectively.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $280 on average.

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 2 weeks before departure.

Expert advice

Expert advice for your flight from Luis Munoz Marin Intl to Boston

 
Snippets provided in this section are AI-generated based on a summarization 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
JetBlue

JetBlue's Even More Space seats offer up to 7” extra legroom and early boarding.


JetBlue provides free gate-to-gate Wi-Fi and seatback screens with live TV channels.

Read more about JetBlueby Harriet Baskas
Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing in-flight connectivity.


Delta's Sky Priority check-in speeds up the process for premium cabin and elite status passengers.

Read more about Deltaby Stefanie Waldek
Frontier

Frontier's Economy Bundle includes a carry-on bag and seat selection, ideal for budget travelers.


Frontier's Premium Bundle offers extra legroom and priority boarding for a small additional fee.

Read more about Frontierby Stefanie Waldek
Airports
SJU

San Juan Airport is compact and efficient, making departures generally painless. Stock up on food if flying late, as most shops close early.

Read more about SJUby Gabriel Leigh
BOS

The Silver Line bus is free from BOS to South Station, offering a convenient and budget-friendly way to reach central Boston.

Read more about BOSby Blane Bachelor
Our travel experts
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
Stefanie Waldek

Stefanie Waldek

Expert on Delta and 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
Blane Bachelor

Blane Bachelor

Expert on BOS

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Gabriel Leigh

Gabriel Leigh

Expert on SJU

Gabriel Leigh

Gabriel Leigh

Gabriel is a writer and video creator. As senior content producer for Flightradar24 and Monocle’s transport correspondent, he keeps a close eye on aviation in particular. He has also written travel articles for the likes of The New York Times. Born in New York but raised around the world, he now lives in Sweden. He’s been to 75 countries, flying 2.3 million miles on 113 airlines and through 234 airports in the process.

Read more

Good to know

Low seasonMarch
Cheapest flight$124
Best time to beat the crowds with an average 15% drop in price.
Most popular time to fly and prices are also 14% lower on average.
Flight from San Juan Airport to Boston

When to book flights from Luis Munoz Marin Intl to Boston

Are your dates flexible? Find out the best times to travel from Luis Munoz Marin Intl to Boston 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 San Juan Airport 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 $124 for a one-way ticket and $182 for a round-trip.

  • Do I need a passport to fly between San Juan Airport and Boston?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Juan Airport and on arrival in Boston.

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

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

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

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

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

    SkyTeam is the only airline alliance operating flights between San Juan Airport and Boston.

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

    There are nonstop flights from San Juan Airport 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 $284 and an overall rating of 7.9, Delta is the most popular choice. JetBlue is also a great choice for the route, with an average price of $316 and an overall rating of 7.2.

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

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

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

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

    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 Boston with an airline and back to San Juan Airport with another airline. Booking your flights between San Juan Airport and BOS can sometimes prove cheaper using this method.

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $173 or less one-way and $262 or less round-trip.

Prefer to fly direct from San Juan Airport to Boston?

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

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Tuesday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

Wednesday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Thursday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

Friday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Saturday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Sunday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

See more direct flights

Direct returns

Boston Logan Intl to San Juan Luis Munoz Marin Intl

Monday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Tuesday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

Wednesday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Thursday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

Friday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Saturday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Sunday

Delta, JetBlue, Frontier, +1 more

Delta, JetBlue, +2 more

See more direct flights

Reviews of the top 4 airlines serving from Luis Munoz Marin Intl 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 Luis Munoz Marin Intl 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.
7.9
DeltaOverall score based on 7995 reviews
7.3Food
7.9Comfort
7.9Entertainment
8.2Boarding
8.5Crew
Airline reviews

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

4.0 OkayHeather, Oct 2025ANC - SEA
Read more Delta reviews

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

Seats comfortable, service and food very mediocre, staff not very attentive, worse than many other our flights with Delta.

Overall good experience; however, there was one flight attendant who was rather rough compared to everyone else. Everything else was good: entertainment, food. Delta keeps on delivering! Thank you!

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Crew blocked exits to front of ship with galley carts. Also split five person family apart on international flight without fixing.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Friendly crew. Poor food service maybe due to full flight. All in all, you get what you pay for.

very difficult boarding process - aggressive passengers not the friendliest crew

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.

There were mutliple delays. There was inconsistent, delayed, and poor communication regarding the delays.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

The check in and boarding process was a bit of a cluster. Two people at the counter to check in, three random lines that nobody knew which was for what, and people kept getting shuffled from one line to another for no apparent reason because then they’d get shuffled back and end up getting out further back in the line than they were originally. I only had to hand my already checked bag over and it took 45 minutes. I was never assigned a seat so when I tried to board I was pulled out of line again while someone had to try to manually assign me a seat. During the flight I got up to go to the bathroom, and there was an attendant in the aisle offering pillows etc and it was a 30 min wait unbuckled standing by the bathrooms because she said I couldn’t go past her. First and last time flying jet blue to be honest.

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.

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

Excessive fees for flight delays. What a Scam. I was not able to attend the wedding I needed to go.

Waited at the airport for over 4 hours to board this flight. Terrible airline

Was supposed to take off 8:00 last night. Got delayed till 8:00 this morning

It was terrible, we had to board and unboard the flight with a hour delay that caused me to miss an appointment and a surprise for my wife

When the flight ticket is expensive and you have to purchase check in luggage and there is no snacks, no entertainment, tight seats stuffed in the back of the plane not such good experience. I would like some to reach out to me . I paid for check luggage when I bought the ticket they made me pay again on the return flight extra $70. Very frustrating.

Excellent experience when I am looking for a budget airline where the main expectation is getting me from point A to point B with no frills.

They didn't let me board with a proper boarding pass. I threw away my bags so that I can board and was defined boarding. Had to take the next flight after paying more.

Great! I intend to use Spirit for future flights. No complaints .

Seats are not very comfortable, maybe a little more padding for a 2hr plus flight

My experience with spirit was not good at all! This was actually my first time flying with Spirit and it’s definitely my last, first of all that flight was delayed, plus I had to pay $99 dollars for my carry on, that’s insane I have never pay for my carry on, I’m definitely going keep traveling with JetBlue or American Airlines, you guys have horrible service.

Terrible. The canceled my entire flight when I requested a refund for a trip frontier canceled trip one way.

Boarding was on time and plane departed as scheduled. There are obviously no amenities (food, drink, entertainment) on Frontier, but there also didn't seem to be any issues with luggage space either.

Inbound plane was on time and flight departed on time with no issues while boarding.

I knew going into this that Frontier, being a low cost carrier, would be pretty bare bones and charge for most extras but this was made up for by the fact that the airplane was a reasonably new Airbus, every employee was great and best of all, Everett Washington is an amazing airport - thanks Frontier for flying there!!!

i was unable to check in the flight. refund requested

It was well done. It was my first time flying with them and I was nervous b/c I have heard of many cancelled and/or delray flights. Everything went smoothly.

Just know that everything, and I mean everything is “ala cart”. 60$ just to put something in the overhead bin. I will never fly Frontier again nor do I recommend them to anyone else.

The single worst check in experience I could imagine. I’ll never do any business with Frontier or any affiliated company

Too many extra fees, uncomfortable, little leg room. Will not recommend this airline.

Everyone seemed to be in zone 1 for boarding. Maybe break it up a little. Otherwise, smooth flight.

Everything you need to know for your flight from Luis Munoz Marin Intl to Boston

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