$93 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 2/27. 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 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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Everything you should know

Cheapest round-trip
$121
Overall average: $183
Spirit Airlines
Thu 2/5Mon 2/9
SJU - BOS • Non-stop
Cheapest one-way
$93
Typical prices: $114-$277
Spirit Airlines
Fri 2/27
SJU - BOS • 1 stop
Top airlines
JetBlue
Most flights • 41 per week
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 30% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

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, Feb 5 - Mon, Feb 9
Spirit Airlines Logo
10:52 am - 2:12 pm
SJU
-
BOS
4h 20mnonstop
Spirit Airlines Logo
3:18 pm - 8:24 pm
BOS
-
SJU
4h 06mnonstop
$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
Thu, Feb 26 - Tue, Mar 3
Spirit Airlines Logo
11:22 am - 2:43 pm
SJU
-
BOS
4h 21mnonstop
Spirit Airlines Logo
5:27 am - 3:31 pm
BOS
-
SJU
9h 04m
1 stop
$123Spirit Airlines
Fri, Feb 13 - Sun, Feb 22
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
$127Multiple 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
Wed, Feb 18 - Mon, Feb 23
United Airlines Logo
1:09 am - 7:15 am
BQN
-
BOS
7h 06m
1 stop
United Airlines Logo
1:55 pm - 11:57 pm
BOS
-
BQN
9h 02m
1 stop
$398United Airlines
Tue, Mar 10 - Thu, Mar 12
JetBlue Logo
3:35 pm - 11:19 pm
BQN
-
BOS
7h 44m
1 stop
JetBlue Logo
6:00 pm - 1:55 am
BOS
-
BQN
7h 55m
1 stop
$436JetBlue
Tue, Feb 17 - Sat, Feb 21
JetBlue Logo
5:15 am - 11:54 am
PSE
-
BOS
7h 39m
1 stop
JetBlue Logo
5:35 pm - 2:00 am
BOS
-
PSE
7h 25m
1 stop
$455JetBlue
Mon, Mar 9 - Thu, Mar 12
Frontier Logo
2:43 am - 10:29 am
BQN
-
BOS
31h 46m
2 stops
Frontier Logo
12:35 pm - 2:08 am
BOS
-
BQN
37h 33m
2 stops
$590Frontier
Wed, Feb 18 - Mon, Feb 23
United Airlines Logo
1:09 am - 7:08 pm
BQN
-
BOS
18h 59m
2 stops
United Airlines Logo
7:45 am - 11:57 pm
BOS
-
BQN
15h 12m
2 stops
$602United Airlines
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 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 $183 on average for one-way flights. On the other hand, the most expensive months are July and November, where the average cost of tickets from Puerto Rico is $310 and $304 respectively. For return trips, the best month to travel is February with an average price of $183.

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 $180 one-way - $136 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 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 91 days before departure.

Good to know

Low seasonMarch
Cheapest flight$93
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly and prices are also 12% lower on average.
Flight from San Juan Airport to Boston

FAQs - booking Boston flights

  • 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 $252. The cheapest price found on KAYAK in the last 2 weeks cost $95 and departed from San Juan Luis Munoz Marin Intl Airport.

  • What is the cheapest day to fly to Boston?

    Based on KAYAK data, the cheapest day to fly to Boston is Sunday where tickets can be as cheap as $266. On the other hand, the most expensive day to fly is Monday, where prices are $342 on average.

  • 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.

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

    The cheapest time of day to fly to Boston is generally in the evening, when flights cost $248 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 $294.

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 $158
  • 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 8133 reviews
7.2Food
7.9Comfort
8.1Boarding
8.5Crew
7.8Entertainment
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.

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!

The entire experience was so surprisingly pleasant. And the blocked extra seat between us was such an amazing and nice bonus. Great experience all around and I can’t wait to fly with spirit again!

Everything was OK, the deicing took a long time, our connections were almost missed.

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.

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