BOS - SJU

Find cheap flights from Boston to San Juan

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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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Cheap Flight Deals 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.

Recent round-trip flight deals from Boston to San Juan

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to San Juan.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
BOS-SJU
4346 kmmulti-stop
SJU-BOS
4346 kmmulti-stop
Multiple Airlines
Find Deal

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$ 231 (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$ 563 and C$ 428 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 season

September

High season

April
Best time to beat the crowds (39% less expensive on average)
Most popular time to fly (14% 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

  • What is the best way to reach San Juan from San Juan International Airport?

    The quickest and most convenient way to go from the airport to San Juan center is by taxi. There is also a public bus, but timetables may be irregular and bulky luggage is not permitted. In front of the airport, there is a line of tourist cabs which have fixed rates to various destinations. To go to Old San Juan, prepare to pay approximately $19 for a 20m ride.

  • Where is the closest hotel to San Juan airport?

    Should you prefer to remain close to the airport, whether it be for a connecting or early flight, the San Juan Airport Hotel is a good choice. Situated onsite at Terminal D, it could not be more convenient. Apart from the close proximity to the terminals, the accommodation provides guest with a bar, 24h reception desk, and a business center.

  • Can I park my car at Boston airport while I am in San Juan?

    Should you prefer to travel to Boston airport with your own car, you can park it at the long-term economy parking lot situated on the airport grounds. If you have heavy bags to carry, you may also want to take one of the free shuttle buses that operate from the lot to the airport every 15-20m. The first day of parking costs approximately $52 and each subsequent day $26, so you can return from San Juan without expecting astronomical fees.

  • Are there 24h restaurants at Boston airport?

    In Terminal A in the pre-security area, there is a 24h Dunkin’ Donuts where you can get coffee and a scrumptious snack. However, most eateries at Boston International Airport open between 4:30 and 5:00 am and only close 30m prior to the last departure, so you should mostly have no problems finding something to eat before you board your flight from Boston to San Juan.

  • 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.

See more FAQs

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

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 284 or less round-trip.
  • With JetBlue Airways you can fly nonstop and for a good price from Boston to San Juan. The low-cost airline usually takes off from Terminal C of Boston International Airport (BOS).
  • There are various airline lounges available at Boston International Airport, but in the Lounge at Terminal C in the post-security area, Gate C19, passengers of any airline and class are welcome. Here you can work, relax, or enjoy a drink before boarding your flight from Boston to San Juan. Entry passes cost approximately $40 for 3h.
  • Keep your kids entertained at the Kidports, available in Terminals A-C. The play areas are all situated in the post-security area of their respective terminal, so your children can play and have fun until it is time to board the plane.
  • Instead of dealing with public transport and stressing about taxis, you can rent your own vehicle at one of the many agencies represented at San Juan Luis Munoz Marin International Airport (SJU). Internationally trusted companies like Alamo, Avis, and Thrifty are located on the first floor of the multistory parking garage.
  • If hunger is already gnawing on you upon your arrival in San Juan, there is a wide range of options to appease your stomach. Especially popular among tourists in San Juan is the Landshark Grill and Bar at Terminal C. Here you will find scrumptious burgers and other mouth-watering dishes on the menu, as well as a relaxing atmosphere.
See more tips

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, +9 more

Aer Lingus,Delta, +10 more

Tuesday

Aer Lingus,Delta,Etihad Airways, +8 more

Aer Lingus,Delta, +9 more

Wednesday

Aer Lingus,Delta,EL AL, +9 more

Aer Lingus,Delta, +10 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,Etihad Airways, +9 more

Aer Lingus,Delta, +10 more

Sunday

Aer Lingus,Delta,EL AL, +10 more

Aer Lingus,Delta, +11 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, +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, +10 more

Aer Lingus,Delta, +11 more

Friday

Aer Lingus,Delta,Etihad Airways, +10 more

Aer Lingus,Delta, +11 more

Saturday

Aer Lingus,Delta,Etihad Airways, +10 more

Aer Lingus,Delta, +11 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 7890 reviews
8.5Crew
7.9Entertainment
8.2Boarding
8.0Comfort
7.3Food
Airline reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

2.0 MediocreAnonymous, Mar 2025JFK - ATL
Read more Delta reviews

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Friendly flight attendants, smooth 8-9 hours flight. Economy seats are small and uncomfortable as usual.

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

Thank you for not flipping the plane on the run way. You guys get a 5 star rating for the flight!!!

The crew was wonderful and attentive. The seats near exit row were restrictive. Offer healthy snacks please

Delta is a premier airline so my expectations are most always met.

Seats are much much more comfortable than United, which is what I usually fly

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

No music app working: no economy meal on five hour flight; hour on tarmac at the end waiting for a gate. Flight itself was smooth and easy.

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

The flight was delayed for 4 hours. Once onboard the crew was wonderful.

Overall was excellent. Will definitely us JetBlue in the future.

Very well organized both boarding and deplaning. Very satisfied with the service I received.

I rate it is good we had a 4-hour travel delay at one point but JetBlue gave out food vouchers and travel points credits for another flight so they try to make up for it

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.

Flight was on time arrived at the destination 10min early they kept in touch via email

Seats are poor. They do not lean back. They do not even have pockets on the back, making it impossible to store a phone or a coke bottle. If you opt for basic economy cheap seats, they stick you always in the middle or window seat, even though there are unoccupied seats on the aisle. And then there is the nickel and diming. No carry-ons. And checking your carry-on is $70. At the end there is no price advantage but there is plenty of aggravation.

Not good. No updates regarding the flight status until after the fact on the delays and then a cancellation.

Flight crew was great. Spirit leaves a lot to be desired in terms of comfort.

This was my first experience with Spirit. The flight was originally delayed because of mechanical problems. There was a major storm moving through our area later in the day. Spirit kept changing the gate and taking the plane for other flights. They did this 6 times until we left 7 hours later, right at the worse time. I am sure it is because they originally delayed the flight through their fault. They would have had to pay for everybody's hotel and later flight. It was a money decision. The pilot did an exceptional job flying and landing the plane in horrific weather. It was one of the roughest and shakiest landings that I have ever done in my extensive flying experience. I just can never go through this discount BS again. Spirit gave us a $30 voucher each for next travel and a $12 meal voucher... but that's nothing compared to sitting in an airport for 7 hours.

Seats were comfortable but dont recline at all. Checkin online was easy but didnt provide a gate until last minute. Flight attendants were very unkind, not friendly and didnt go over safety procedures in case of a crash. No free snacks or beverages, not even water.

Good crew and safe. However, comfort and being nickeled-and-dimed are my issues. $75 each way for luggage is exhortation. The space to the next seat is so close you cannot open a laptop. The magazine rack doesn’t hold your items. Not a fan.

The booking was cancelled the next day. Spirit Airlines refunded Kayak cheapflay the full amount, but I was only refunded half. Costumer service is disgusting. Be careful. You can lose your money.

Everything on the flight was OK. However, the price is very deceiving the way that it is marketed. It seems like it’s going to be very low cost, but when you add in the charges for luggage, choosing a seat, food & drink, etc., that are already included in other competitors fares, it really is no cheaper, and possibly even more expensive than the other carriers. It actually makes your carrier seem dishonest.

If kayak actually provided me this flight and didn’t just send me notifications about it

Kayak never booked my flight, I have received notifications the entire time the fights were to be used I went to the airport to find out despite receiving these emails to board my flight was never booked only to have to return home and miss the event I was scheduled for, inconvenient and devastating to say the least, customer service was very poor to only explain that my card had not been charged so that I shouldn’t worry. Yea great for you to say being that your not inconvenienced.

They switched my flight to Spirit, Never using Kayak again,

i was denied boarding, even though i had an assigned seat, checked in on line and was at airport early. Then they refused to fully refund the the fair and replacement fair because they claimed it was "no show/denied boarding". I will never fly this airline again

I was not permitted on my flight and had to purchase another flight ticket to Las Vegas.

This was a full flight and I was in Zone 1, however upon boarding, several other zones went in ahead of me, leaving no overhead cabin space near my seat. This created a challenging disembarkment process.

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

It was a no frills flight. Would have liked to be able to charge my device

The flight itself was ok and the pilot was very communicative. However, our flight was delayed for almost 3 hours, the gate was changed 3 times and there was no communication as we were waiting. The flight staff was overall a little crabby...I understand as they probably had a long day but we all did.

Asked for a seat change to be w my wife at the gate they were great in sorting it out to make it happen

Everything went as planned. Crew was great. Seats were still not that comfortable.

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

Information on your arrival and departure airports

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