SJU - BOS

$93 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 5/27. 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
$121
Overall average: $218
Spirit Airlines
Tue 3/3Sat 3/7
SJU - BOS • Non-stop
Cheapest one-way
$93
Typical prices: $136-$232
Spirit Airlines
Wed 5/27
SJU - BOS • 1 stop
Our travelers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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 $121 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 30% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
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+1
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We hope you love your trip to Boston!
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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

Tue, Mar 3 - Sat, Mar 7
Spirit Airlines Logo
11:22 am - 2:43 pm
SJU
-
BOS
4h 21mnonstop
Spirit Airlines Logo
8:01 pm - 1:08 am
BOS
-
SJU
4h 07mnonstop
$121Spirit Airlines
Fri, Feb 13 - Sun, Feb 22
Spirit Airlines Logo
11:22 am - 2:43 pm
SJU
-
BOS
4h 21mnonstop
Spirit Airlines Logo
4:22 pm - 10:17 am
BOS
-
SJU
16h 55m
1 stop
$122Spirit Airlines
Sun, Feb 15 - Sat, Feb 21
Multiple Airlines Logo
6:00 am - 9:19 am
SJU
-
BOS
4h 19mnonstop
Multiple Airlines Logo
8:32 pm - 3:31 pm
BOS
-
SJU
17h 59m
1 stop
$123Multiple Airlines
Mon, Feb 16 - Sun, Feb 22
Multiple Airlines Logo
6:00 am - 9:19 am
SJU
-
BOS
4h 19mnonstop
Multiple Airlines Logo
3:00 pm - 8:06 pm
BOS
-
SJU
4h 06mnonstop
$125Multiple Airlines
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
3:30 pm - 6:56 pm
SJU
-
BOS
4h 26mnonstop
Spirit Airlines Logo
4:22 pm - 10:17 am
BOS
-
SJU
16h 55m
1 stop
$126Spirit Airlines
Fri, Feb 27 - Sun, Mar 1
Frontier Logo
6:00 am - 9:19 am
SJU
-
BOS
4h 19mnonstop
Frontier Logo
10:04 am - 3:00 pm
BOS
-
SJU
3h 56mnonstop
$127Frontier
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
11:22 am - 2:43 pm
SJU
-
BOS
4h 21mnonstop
Spirit Airlines Logo
3:00 pm - 8:06 pm
BOS
-
SJU
4h 06mnonstop
$128Spirit Airlines
Fri, Feb 27 - Sun, Mar 1
Spirit Airlines Logo
11:22 am - 2:43 pm
SJU
-
BOS
4h 21mnonstop
Spirit Airlines Logo
8:01 pm - 1:08 am
BOS
-
SJU
4h 07mnonstop
$129Spirit Airlines
Sat, Feb 14 - Wed, Feb 18
Multiple Airlines Logo
6:00 am - 9:19 am
SJU
-
BOS
4h 19mnonstop
Multiple Airlines Logo
5:27 am - 3:31 pm
BOS
-
SJU
9h 04m
1 stop
$130Multiple Airlines
Fri, Feb 13 - Mon, Feb 23
Multiple Airlines Logo
6:00 am - 9:19 am
SJU
-
BOS
4h 19mnonstop
Multiple Airlines Logo
5:27 am - 3:31 pm
BOS
-
SJU
9h 04m
1 stop
$132Multiple Airlines
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.

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 Sundays 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 $183 (return) on average. On the other hand, the most expensive months are July and November, 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.

No, with an average price for the route of $204, 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 2 weeks before departure, which saves you about 17% compared to booking last minute. 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

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Harriet Baskas

Harriet Baskas

Expert on JetBlue

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.

Stefanie Waldek

Stefanie Waldek

Expert on Delta and Frontier

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.

Blane Bachelor

Blane Bachelor

Expert on BOS

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.

Gabriel Leigh

Gabriel Leigh

Expert on SJU

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.

Good to know

Low seasonMarch
Cheapest flight$93
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 3% 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 $93 for a one-way ticket and $121 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, Delta, American Airlines, British Airways, Aer Lingus, Iberia, and Finnair.

  • 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 $282 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 $311 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 $180 or less one-way and $136 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, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Tuesday

Delta, JetBlue, Spirit Airlines, +1 more

Delta, JetBlue, +2 more

Wednesday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Thursday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Friday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Saturday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Sunday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

See more direct flights

Direct returns

Boston Logan Intl to San Juan Luis Munoz Marin Intl

Monday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Tuesday

Delta, JetBlue, Spirit Airlines, +1 more

Delta, JetBlue, +2 more

Wednesday

Delta, JetBlue, Spirit Airlines

Delta, JetBlue, +1 more

Thursday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Friday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Saturday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +2 more

Sunday

Delta, Frontier, JetBlue, +1 more

Delta, Frontier, +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 8139 reviews
7.9Comfort
7.2Food
8.1Boarding
7.8Entertainment
8.5Crew
Airline reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

2.0 MediocreTodd, Jan 2026
IAH - ATL
Read more Delta reviews

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Very convenient considering that is a non-stop flight, but the Aeromexico still has old model planes, so the entertainment was very poor and the space for carry-on luggage was very limited.

we were delayed because of some safety check that wasn't done or 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.

We were on the tarmac waiting for a gate at Logan for 40, minutes. The crew handled it well. Can't blame the airline.

That gate is like a ducking shelter at Newark No where to sit Outlets that don’t work Bathrooms that are dirty

Everything was good. On time, boarding fast, flight attendants friendly.

Great, but seats are terrible. Way too cramped for any human.

Spirit has always and will always stink. Absolute worst airline around.

It was smooth sailing snags we had a really smooth landing and a great flight!

Our outgoing flight was cancelled two hours before boarding and Spirit was not able to get us onto another flight. Their customer service was slow and unhelpful.

Terrible. I never made my trip to Puerto Rico and my layover flight from IAH to MCO was delayed over 3 hours and made me miss my connecting flight. I spend 2 days in an airport just to have to go back to Houston. This was a trip for my birthday and I lost money on this trip. I understand the situation with Venezuela affected flights but it’s always something with Spirit.

Every Spirit flight we took was delayed by nearly 2 hours. We arrived in MCO and learned that our connection had been canceled. There were no options for rebooking for 4 days. No hotel vouchers provided, no transportation etc. The airline essentially stranded us, and rhe passengers from 6 other flights hours from our destinations with no assistance. Still no word on my refund. Terrible customer service.

Absolute disaster. Was delayed, delayed again, then delayed while loaded, causing many to miss connecting flights. However, spirit had only one person to process over 20 missed flights, taking forever. They then provided little guidance. No wonder they are bankrupt

Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!

Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.

I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.

It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

It didn’t happen. I booked it and then was told it wasn’t available and then forced to pay far higher prices for a worse option

A 630departure flight Delayed 6hours! They changed my gate, I moved to the new gate. Had our flight on the screen for 12noon departure. I go get above to eat, check screen again and the flight was gone, no notice no announcement, nothing!! They sent my bag on the flight I wasn’t on, got it back to me 3days later. Thank goodness they did refund my money but I will NEVER fly them again.

Due to weather, my flight was delayed, further delayed, then canceled. I eventually got through to a support person who helped me find a different route out of MSP, but to get to DIA, they didn't want to, but eventually did help with the connection ticket purchase. But even this replacement flight was delayed time and time again, and I would have missed my connecting flights and I didn't want to get stuck in a layover city, so after 12 hours at the airport with two young boys who were very tired, we just cancelled our plans and spent the week at home, instead of Nana's.

Plane and crew on board were fine. Everything else was terrible.

The third party booking with cheapflightsfares was awful. Kayak should NOT partner with them. They sold me a bundle including seat selection and carry-on, but did not book the carry-ons with Frontier, so I’m out of pocket for $414 more while I await resolution.

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

Information on your arrival and departure airports