$96 Find Cheap Flights from Puerto Rico 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 to Boston departing on 4/13. 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 for flights to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Boston, as well as popular online travel agencies
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Cheap Flights from Puerto Rico to Boston

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Puerto Rico 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 Puerto Rico to Boston

Thu, Apr 2 - Tue, Apr 7
Frontier Logo
6:00 am - 10:16 am
SJU
-
BOS
4h 16mnonstop
Frontier Logo
11:18 am - 3:17 pm
BOS
-
SJU
3h 59mnonstop
$138Frontier
Sat, Apr 4 - Tue, Apr 7
Frontier Logo
6:00 am - 10:16 am
SJU
-
BOS
4h 16mnonstop
Frontier Logo
11:18 am - 3:17 pm
BOS
-
SJU
3h 59mnonstop
$149Frontier
Thu, Apr 2 - Wed, Apr 8
Multiple Airlines Logo
6:00 am - 10:16 am
SJU
-
BOS
4h 16mnonstop
Multiple Airlines Logo
3:23 pm - 7:19 pm
BOS
-
SJU
3h 56mnonstop
$150Multiple Airlines
Thu, Apr 2 - Wed, Apr 8
Multiple Airlines Logo
6:00 am - 10:16 am
SJU
-
BOS
4h 16mnonstop
Multiple Airlines Logo
3:23 pm - 7:19 pm
BOS
-
SJU
3h 56mnonstop
$151Multiple Airlines
Thu, Apr 9 - Sun, Apr 12
Multiple Airlines Logo
10:00 am - 2:18 pm
SJU
-
BOS
4h 18mnonstop
Multiple Airlines Logo
11:18 am - 3:17 pm
BOS
-
SJU
3h 59mnonstop
$152Multiple Airlines
Thu, Apr 2 - Mon, Apr 6
Spirit Airlines Logo
10:00 am - 2:18 pm
SJU
-
BOS
4h 18mnonstop
Spirit Airlines Logo
3:23 pm - 7:19 pm
BOS
-
SJU
3h 56mnonstop
$160Spirit Airlines
Tue, May 19 - Sat, May 30
United Airlines Logo
12:15 am - 9:11 am
BQN
-
BOS
8h 56m
1 stop
United Airlines Logo
2:40 pm - 11:09 pm
BOS
-
BQN
8h 29m
1 stop
$332United Airlines
Tue, May 19 - Sat, May 30
United Airlines Logo
12:15 am - 7:53 am
BQN
-
BOS
7h 38m
1 stop
United Airlines Logo
2:40 pm - 11:09 pm
BOS
-
BQN
8h 29m
1 stop
$352United Airlines
Wed, Apr 8 - Sat, Apr 11
JetBlue Logo
4:05 am - 10:48 am
BQN
-
BOS
6h 43m
1 stop
JetBlue Logo
7:55 pm - 3:33 am
BOS
-
BQN
7h 38m
1 stop
$396JetBlue
Fri, Apr 3 - Wed, Apr 8
JetBlue Logo
7:59 pm - 9:03 am
PSE
-
BOS
13h 04m
1 stop
JetBlue Logo
7:55 pm - 7:04 pm
BOS
-
PSE
23h 09m
1 stop
$514JetBlue
Booking Insights

KAYAK's insights & trends for flights to Boston

Get data-powered insights and trends for flights to Boston to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to Boston?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Boston was found on the route from Aguadilla, at $138 return. The most popular connection is from Chicago to Boston and KAYAK users have found round-trip deals for as low as $126 in the last 3 days.

What is the cheapest day to fly to Boston?

The average price of all round-trip flights to Boston clicked on KAYAK for each day over the last 12 months.

Based on KAYAK data, the cheapest day to fly to Boston is Friday where round-trip tickets can be as cheap as $273. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $347 on average.

What is the cheapest month to fly to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights 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 to Boston is February, where tickets cost $220 on average for return flights. On the other hand, the most expensive months are July and November, where the average cost of tickets from Puerto Rico is $314 and $304 respectively. For one-way flights, the best month to travel is February with an average price of $220.

What is the cheapest time of day to fly to Boston?

The average price for all round-trip flights to Boston depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Boston is generally in the evening, when round-trip flights cost $255 on average. The most expensive time of day to fly to Boston is generally in the morning, which is peak travel time and where the average cost of a ticket is $296.

What is a good deal for flights to Boston?

If you’re looking for cheap airfare to Boston, 25% of our users found tickets to Boston for the following prices or less: From San Juan Luis Munoz Marin Intl Airport $227 round-trip.

How far in advance should I book a flight to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$96
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Aguadilla to Boston

FAQs - booking Boston flights

  • What is the cheapest flight to Boston?

    In the last 3 days, the cheapest flight deal to Boston was found on the route from Aguadilla, at $138 return. The most popular connection is from Chicago to Boston and KAYAK users have found round-trip deals for as low as $126 in the last 3 days.

  • How far is Boston Logan Intl Airport from central Boston?

    Boston Logan Intl Airport is 3 miles from the center of Boston.

  • What is the name of Boston’s airport?

    When flying to Boston, you'll arrive at Boston Logan Intl Airport (BOS). The airport is also known as Boston Logan, General Edward Lawrence Logan Intl, or Logan Intl.

  • How much is a flight to Boston?

    On average, a flight to Boston costs $283. The cheapest price found on KAYAK in the last 2 weeks cost $88 and departed from San Juan Luis Munoz Marin Intl Airport.

  • How does KAYAK find such low prices on flights 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 to Boston.

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

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

  • What is the Hacker Fare option on flights 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 with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight 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 up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Boston

  • Looking for cheap airfare to Boston? 25% of our users found round-trip tickets to Boston for the following prices or less: From San Juan Luis Munoz Marin Intl $188
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

Reviews of the top 4 airlines serving from Puerto Rico to Boston

 
See real verified KAYAK customer reviews for airlines flying to Boston. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Puerto Rico to Boston. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with 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 8277 reviews
7.8Entertainment
8.1Boarding
7.9Comfort
7.2Food
8.5Crew
Airline reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

8.0 ExcellentMary, Mar 2026
LGA - MKE
Read more Delta reviews

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

I wish the inflight entertainment system options were broader, but overall this was a fantastic crew and I can’t express how cheerful, welcoming, and attentive they were.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

Good flight. Connector flight was delayed so made a short turnaround in Atlanta which was stressful. Otherwise, great crew, Staff in ATL was very informative about the delay and ensured people their connections were fine. Notified the ones that were not. Great communication.

I have to congratulate Kayak (and Dylan the Chatdeal agent) because because when we decided extended our trip in Florida by two days, there were many direct flights oprions back to Boston available on the Friday we wanted to fly on the JetBlue website, but once I canceled the original JetBlue flight on their website, those direct return options disappeared immediatley! I think it's a game JetBlue plays. . Luckily, I checked Kayak and they had a direct flight that wasn't appearing on JetBlue's website and so I booked it, and we were able to fly home direct through the Kayak booking when JetBlue was offering nothing (even though I have been a True Blue member for 20 years, and also am a Mosaic member). So much for loyalty- their algorithm for booking is like a shell game. JetBlue used to be a good company but now they're worse than anyone. Also I was originally booked this trip to Florida, two months before the departure date, I booked the trip on JetBlue's website and then after the payment part, they said there was a problem and that I needed to do the booking again, so when I immediately went to rebook , the price had gone up 30%! I called them and it sounded like they had heard this so many times before and the guy told me to check back in 10 minutes and the price would be back to where it was when I was booking- it but it never was. How could the price go up 30% in one minute two months before the flight???? They're playing a game with their customers. Anyways, I booked a cheaper flight then at a less convenient time. So fast forward two months the night before the 7 AM flight, they sent me an email at midnight when I was sleeping to let me know that my flight at 7 AM had been canceled. The only thing they offered was a flight that night from from a different airport (Providence) to a different airport in Florida (West Palm Beach) or a flight two days later. No compensation, nothing. They couldn't of tried to get another plane to the Boston airport? They had all night to do it. I passed on their ridiculous options and flew with Delta and it was a great experience. Of course, I had to pay a lot more booking on the same day, but JetBlue doesn't care. I put in a lengthy complaint with the agent who assured me someone would get back to me by email within three days and I haven't heard a thing. JetBlue used to be a good company but now they're among the worst. The only thing they still have is decent legroom, but the corporate bean counters will probably start taking that away too.

It was a pretty smooth flight, I tend to get mini anxiety attacks during flights, however, this time was pretty smooth and I was able to relax. The only thing, I was having issues to connect to the Flyfi internet. I was not able to connect at all, I turned off my phone a couple times and didnt work.

My flight got delayed and eventually canceled, then rescheduled. I and several others had a connection from Boston to Paris and asked several times if we would make it. They assured us we would and then rebooked us mid flight without our consent and closed doors early even though they said they communicated we were a bit delayed. We got stranded in Boston and I opted with being rebooked for a different connection to France since they refused to pay for a Hotel. I've now been in Europe for 5 days and still haven't recieved my bags. There was absolutely no urgency for the fact that I'm in a foreign country with absolutely no change of clothes or any of my medication. Such an overwhelming and frustrating experience.

The crew for the flight was A+ top notch. They were friendly and professional and made the flight a very relaxing and enjoable.

Rude crew member. She seemed annoyed at me without me saying a single word. Also loudly admonished me for having my bag next to my seat instead of tucked away before landing. Just telling me to put it away and guiding me without giving me a lecture would have been enough.

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.

Had to pay for my bag a mini weekender bag 100 dollar fee

Bad. I know TSA is a mess right now but they “overbooked” the flight and almost didn’t let 10 of us on. Can’t put even a normal backpack under the seat, tray table is barely a foot wide, have to pay for literally everything. Apparently you can bid on your seats, too, so really the baseline ticket only covers the possibility of maybe getting on the plane. The staff were nice though, can only imagine the stress they are under.

Customer service online / on the phone are horrible. Flight crew is great but gate agents and customer service are terrible

We flew Spirit because it was cheaper but the seats were so uncomfortable. I don;t need to be fed snacks on a plane but when it's a 3-4 hour trip then at least a drink is nice. The flight attendants had nothing to do the whole flight except for gossip loudly to each other right behind our seats, and they talked so much my husband couldn't even rest! I was fine with no tv or entertainment but the seats were so uncomfortable with no recline, no padding, and I am short but even for me to leg room was tough for a 3-4 hour trip. We probably would fly spirit again if we had to, but it's definitely not our favorite!

The flight itself and the crew were great. Sitting on the tarmac for over an hour until our gate opened up was really frustrating. Missed our scheduled bus and got home two hours later

We sat on the tarmac for an hour and a half after landing.

The flight from Boston to San Juan was boring since you guys don’t offer wings if during the flight. The returning flight was better offering WiFi to passengers. The food was horrible not enough on stock.serve paying customers better.

There absolutely needs to be WiFi on flights. Not sure why this new aircraft did not have the capability, but it made for a very frustrating flight. I honestly would have paid twice as much for another airline to have WiFi as an option, especially as a mom with kids who have disabilities.

Forgot my anxiety pills, crew didn’t knew what to do then few minutes after they gave me a bottle of water and told me to walk thru the hall. They should be trained for this kinds of situations cause it really would help someone. Tips: bottle of water (airports should allow passengers at least having them thru) for this kinds of situations. Alcohol wipes just in case they don’t have. Tap water on skin (preferably little cold or a normal temperature) this will 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.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

Frontier line changes my flight schedule with out my authorization. They never ask me and with out my concern they cut off 4 hours of my vacation they force my to leave 4 hours early from Puerto Rico.

There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.

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.

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