$141 Find Cheap Flights from Costa Rica 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 12/18. 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
These are the airlines KAYAK users have selected most often from within our search results for flights to Boston
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$234
Overall average: $405
American Airlines
Tue 2/3Tue 2/24
SJO - BOS • 1 stop
Cheapest non-stop
$305
JetBlue
Mon 12/22Wed 12/31
LIR - BOS • Non-stop
Top airlines
JetBlue
Most flights • 11 per week
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
November
Cheapest • 18% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Boston!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Costa Rica to Boston

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

Tue, Feb 3 - Tue, Feb 24
American Airlines Logo
6:00 am - 12:59 am
SJO
-
BOS
17h 59m1 stop
American Airlines Logo
5:00 am - 8:58 pm
BOS
-
SJO
16h 58m1 stop
$234American Airlines
Fri, Jan 30 - Tue, Feb 3
United Airlines Logo
2:05 pm - 3:09 pm
SJO
-
BOS
24h 04m2 stops
United Airlines Logo
4:49 pm - 1:15 pm
BOS
-
SJO
21h 26m2 stops
$239United Airlines
Thu, Jan 29 - Sun, Feb 1
American Airlines Logo
4:02 pm - 10:01 am
SJO
-
BOS
16h 59m1 stop
American Airlines Logo
7:00 am - 10:30 pm
BOS
-
SJO
16h 30m1 stop
$240American Airlines
Tue, Dec 23 - Thu, Jan 1
American Airlines Logo
12:34 am - 9:20 pm
SJO
-
BOS
19h 46m1 stop
American Airlines Logo
6:36 am - 8:14 pm
BOS
-
SJO
14h 38m1 stop
$244American Airlines
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
8:00 am - 10:19 pm
SJO
-
BOS
13h 19m2 stops
American Airlines Logo
9:52 am - 8:13 pm
BOS
-
SJO
11h 21m2 stops
$246American Airlines
Fri, Jan 23 - Sun, Jan 25
American Airlines Logo
6:38 am - 11:30 pm
SJO
-
BOS
15h 52m1 stop
American Airlines Logo
7:00 am - 10:30 pm
BOS
-
SJO
16h 30m1 stop
$247American Airlines
Sat, Dec 20 - Tue, Jan 6
American Airlines Logo
3:29 pm - 11:50 am
SJO
-
BOS
19h 21m1 stop
American Airlines Logo
6:42 am - 10:30 pm
BOS
-
SJO
16h 48m1 stop
$248American Airlines
Mon, Dec 22 - Wed, Dec 31
JetBlue Logo
2:30 pm - 8:51 pm
LIR
-
BOS
5h 21mnonstop
JetBlue Logo
8:15 am - 1:10 pm
BOS
-
LIR
5h 55mnonstop
$305JetBlue
Thu, Jan 15 - Mon, Jan 19
United Airlines Logo
8:35 am - 11:20 pm
LIR
-
BOS
13h 45m1 stop
United Airlines Logo
5:45 am - 6:37 pm
BOS
-
LIR
13h 52m2 stops
$309United Airlines
Tue, Dec 23 - Tue, Dec 30
Delta Logo
2:45 pm - 5:56 pm
LIR
-
BOS
26h 11m2 stops
Delta Logo
6:16 pm - 1:30 pm
BOS
-
LIR
20h 14m1 stop
$311Delta
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 December, where tickets cost $383 on average for one-way flights. On the other hand, the most expensive months are January and February, where the average cost of tickets from Costa Rica is $851 and $653 respectively. For return trips, the best month to travel is November with an average price of $331.

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 Liberia $168 one-way - $166 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 26 days before departure.

Good to know

Low seasonNovember
Cheapest flight$141
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from San José to Boston

FAQs - booking Boston flights

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

    There are 3 miles between Boston city center and Boston Logan Intl Airport.

  • What is the name of Boston’s airport?

    All flights to Boston land at Boston Logan Intl Airport. The airport code is BOS,and it can also be referred to 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 $241. The cheapest price found on KAYAK in the last 2 weeks cost $166 and departed from Liberia Airport.

  • What is the cheapest day to fly to Boston?

    Based on KAYAK data, the cheapest day to fly to Boston is Tuesday where tickets can be as cheap as $393. On the other hand, the most expensive day to fly is Sunday, where prices are $519 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 $356 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 $474.

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 Liberia $167
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boston flight deals.

Reviews of the top 5 airlines serving from Costa Rica 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 Costa Rica 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.
7.6
Copa AirlinesOverall score based on 1558 reviews
8.1Crew
7.4Comfort
7.8Boarding
6.8Entertainment
6.9Food
Airline reviews

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

8.0 ExcellentAnonymous, Dec 2025
PTY - CUR
Read more Copa Airlines reviews

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

Some of the Air hostesses are not that friendly. Need improvement

They were super friendly bumped me up to exit row free of charge, All flight legs were on time

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Great experience with a crew always thinking in the passenger

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

We paid extra with copa for seats near one another The plane was changed and we lost our seats We were all Separated. We have not received a refund for our seats despite emailing and calling.

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

For an expensive flight to another country, United has a lot of nerve serving pretzels and no meals (unless, of course, you want to buy something to eat). Unacceptable.

The food is terrible. The same pasta or chicken with bad taste and presentation

United have really come back. Airport and boarding process is clear and good, app and information also very good

The Sears in the 800s are not too good perfect Airbus why cant the new 737 fix that

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

It was probably one of the worst flights I’ve been on. The restrooms were never cleaned or stocked. The food was very subpar, and i usually enjoy airline food, so I was disappointed. It was just all around a bad experience. The only saving grace was the flight attendants.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

it was fine, decent flight... dont get food besides cookies or pretzels so not sure why you ask about food. same for entertainment..

I got sick nothing contagious but distressing and the care I received by Kayla? Keighly the flight attendant will be memorable for ever. Thank You

I got sick nothing contagious but distressing enough and the care I received on the flight was astounding.

Waaay too small plane. They also need to up the size of the overhead bins. I would love to keep me 3k with of camera equipment in my hard case baggahe instead of it being thrown into the belly of the plane

Attendants were pleasant and the flight was smooth and relaxed.

A little late at the start but all worked out well.

It was fine. No drinks nor snacks offered though. I thought that was unusual.

I liked the humor of the captain and crew on the flight from Flagstaff to Dallas. They were humorous.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

Qatar Airways only had spicy meals on the menu in economy class. You might want to get food in the airport before boarding.

The ride share experience in JFK is terrible. After traveling on a flight, then you need to take a subway to the last stop to get an uber or lyft. Unacceptable. Bad job JetBlue for permitting JFK and Port Authority to do this to your passengers.

The flight was two hours late due to a computer fault and resulting maintenance. Nothing was offered as compensation beyond bottles of water during the time we were deplaned and waiting in the terminal.

Very pleasant flight attendants. Gate crew rather loud chatting with each other.

Four plus hour flight delay in New York caused us to take off after 11:30pm. We didn’t arrive at our hotel until five hours after check in. Started the trip off feeling exhausted.

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

Plane was in bad shape. TV’s and WiFi didn’t work. Plane need a refresh. Not enough room for bags.

Everything was great. I liked the text updates so that I never miss a gate change & I have all the latest info.

I don’t usually fly budget airlines or airlines in the United States. It was as good as any other airline. The seats are comfortable and the airline attendants are not rude & surly. Very nice flight (s).

They have the most inexperienced / rude flight staff I’ve encountered

The experience was really good, the crew members were excellent

Honestly horrible. The plane on the way back was delayed 6 times with no explanation on why. When I asked for a refund or some money back because I had to miss a day of work because of the desk, they told me no. Because of how poorly it was handled I will most likely never take spirit again

I love a flight without turbulence and you guys deliver It’d be nice to have comfier seats and maybe some inflight entertainment and snacks but that’s for Delta

This was my first time on a budget airline and I couldn't even sit down all the way because my knees would embed in the seat in front of me. I'm only 6' tall with a 32" inseam. There's no upside other than y'all are cheap. I'm glad it was only a 2 hour flight. Lesson learned! I get why everybody talks down on budget airlines. The staff was outstanding, the flight went as well as possible, great pilot, great boarding, smooth sailing. Zero chance I'll be back though.

Everything was smoothly and convenient! Just stay in this way!

Cancelled my flight and the earliest that they are willing give me for the next flight which was 3 days later on a weekday. Only accommodation they are willing to give was $30 airline credit that will expire in 1 year

Terrible Airline I will never fly that airline again. Shame on you for recommending them.

Flight was canceled, huge lines to get baggage returned. Most other airlines had delays but not widespread cancellations like Spirit.

Excellent! No complaints! All the staff from the counter to the airplane crew, was just amazing and pleasing to talk to

My baby was crying uncontrollably for the longest time and the entire crew was SO supportive, I’m so appreciative of them. Thank you so much for the support during an exhausting moment. We got very lucky.

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Everything you need to know for your flight to Boston

Information on the airport you'll fly into in Boston