$120 Find Cheap Flights from Boston to Costa Rica

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Costa Rica departing on 2/5. 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

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Cheap Flights from Boston to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José1 stop$280
Liberia
Liberianonstop$320
San José
San José1 stop$280
Liberia
Liberianonstop$320

Book Cheap Boston to Costa Rica Plane Tickets

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

Mon, Apr 27 - Tue, May 5
Multiple Airlines Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Multiple Airlines Logo
12:31 pm - 11:59 pm
SJO
-
BOS
9h 28m
1 stop
$280Multiple Airlines
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
11:09 am - 7:12 pm
BOS
-
SJO
10h 03m
1 stop
American Airlines Logo
6:00 am - 12:05 am
SJO
-
BOS
16h 05m
1 stop
$281American Airlines
Tue, Feb 24 - Tue, Mar 3
Spirit Airlines Logo
5:27 am - 12:22 pm
BOS
-
SJO
7h 55m
1 stop
Spirit Airlines Logo
1:31 pm - 11:44 pm
SJO
-
BOS
9h 13m
1 stop
$283Spirit Airlines
Tue, Feb 24 - Thu, Mar 5
JetBlue Logo
6:00 am - 1:00 pm
BOS
-
SJO
8h 00m
1 stop
JetBlue Logo
1:10 pm - 11:59 pm
SJO
-
BOS
9h 49m
1 stop
$284JetBlue
Fri, Feb 13 - Mon, Feb 16
JetBlue Logo
12:38 pm - 10:48 pm
BOS
-
SJO
11h 10m
1 stop
JetBlue Logo
1:15 pm - 11:59 pm
SJO
-
BOS
9h 44m
1 stop
$285JetBlue
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
10:00 am - 7:12 pm
BOS
-
SJO
11h 12m
2 stops
American Airlines Logo
6:00 am - 12:05 am
SJO
-
BOS
16h 05m
1 stop
$286American Airlines
Fri, Feb 20 - Thu, Feb 26
Spirit Airlines Logo
5:27 am - 12:22 pm
BOS
-
SJO
7h 55m
1 stop
Spirit Airlines Logo
1:31 pm - 11:44 pm
SJO
-
BOS
9h 13m
1 stop
$287Spirit Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
7:00 am - 4:23 pm
BOS
-
SJO
10h 23m
1 stop
Multiple Airlines Logo
1:31 pm - 11:44 pm
SJO
-
BOS
9h 13m
1 stop
$288Multiple Airlines
Wed, Feb 4 - Sat, Feb 14
Delta Logo
6:25 pm - 1:30 pm
BOS
-
LIR
20h 05m
1 stop
Delta Logo
1:40 pm - 7:55 pm
LIR
-
BOS
5h 15mnonstop
$336Delta
Sat, Feb 7 - Fri, Feb 13
Delta Logo
6:25 pm - 1:30 pm
BOS
-
LIR
20h 05m
1 stop
Delta Logo
3:05 pm - 1:09 am
LIR
-
BOS
9h 04m
1 stop
$339Delta
Booking Insights

KAYAK's insights & trends for Boston to Costa Rica flights

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

What is the cheapest Boston to Costa Rica flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Costa Rica from Boston found in the last 72 hours was to Liberia, at $142 round-trip. The most popular route is from Boston (BOS) to Liberia (LIR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $142.

Can I save money by flying with a layover from Boston to Costa Rica?

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $464 on average.

What is the cheapest month to fly from Boston to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Costa Rica, 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 Costa Rica is September, when tickets cost $385 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $637 and $549 respectively.

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

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 Costa Rica, 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 Costa Rica, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$120
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Boston to San José

FAQs - booking Costa Rica flights

  • What other airports are there in Costa Rica?

    In addition to San Jose Airport, there is Daniel Oduber International Airport (LIR). This airport is about an 18min drive from the city of Liberia, which is part of the Guanacaste Province in the northern part of Costa Rica. Along with the benefit of its location, you should choose this airport if you want a non-stop flight. JetBlue offers a non-stop afternoon flight from Boston to Liberia.

  • How can I get from the airports in Costa Rica to the city center?

    You can catch a bus from San Jose Airport into the city center. The TUASA bus picks up its passengers outside of the arrival hall. Riding the bus will take about 35min and it is the cheapest mode of transportation from the airport. You can also hail a taxi close to the bus stop. A taxi ride will take about 20min. If you fly to Liberia Airport, you can get to the city in less than 30min on the bus. A taxi, on the other hand, will take about 16min.

  • Are there rental car agencies at the airports in Costa Rica?

    There are several car rental agencies at the San Jose Airport. Many of these are national brands such as National Car Rental, Hertz, Alamo, and Enterprise. The car rental offices are located in Terminal M and you'll have to take a shuttle bus to pick up your rental car. In Liberia, you can also rent a car at the airport. Some agencies with offices at Liberia Airport include Budget, Avis and Dollar.

  • Can I exchange my US dollars to the Costa Rican colon?

    Yes, you can exchange your US dollars for the Costa Rican colon at the San Jose Airport. The currency exchange center is located in Terminal A. Along with a currency exchange center, there are also ATM machines around the airport. At Liberia Airport, the currency exchange center is between gates 3 and 4. There are also ATM machines at the airport in Liberia.

  • How does KAYAK find such low prices on flights from Boston to Costa Rica?

    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 Costa Rica.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Boston to Costa Rica 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 Boston to Costa Rica?

    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 from Boston to Costa Rica 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 from Boston to Costa Rica?

    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 from Boston to Costa Rica 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 Costa Rica

  • If you need to relax before your return flight leaves to Boston, there is a chapel where you can pray or meditate in the Mezzanine Hall of the San Jose Airport in Costa Rica.
  • Flying from Boston (BOS) to San Jose, Costa Rica, you'll have one or two plane changes. Your layover could be in Newark (EWR), New York (JFK), Panama City (PTY), or Fort Lauderdale (FLL).
  • You can park your car long-term at Boston Logan International Airport. There is garage parking as well as lot and economy parking. When you choose economy parking, you'll have to catch a shuttle from the lot to the airport.
  • While waiting for your flight to leave from San Jose Airport, you can enjoy a visit to the airport lounge. The lounge is available to all passengers for a fee.
  • Grab a bite to eat at Boston Logan International Airport before boarding the plane. Some airport restaurants include Sbarro, Wahlburgers and Potbelly Sandwich Shop. There are also bars and coffee shops at the airport, such as Starbucks and the Boston Bruins Bar.

Reviews of the top 5 airlines serving from Boston to Costa Rica

 
Need help choosing which airline to fly with from Boston to Costa Rica? 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 8088 reviews
7.8Entertainment
8.5Crew
7.9Comfort
8.1Boarding
7.2Food
Airline reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

4.0 OkayJohn, Jan 2026
DAL - ATL
Read more Delta reviews

There was no wifi available on this flight. And there were no screens, no onboard entertainment, no entertainment options at all. It was like travelling in the 1990s again, except without even a main screen for options. Seats, as usual, were tight and uncomfortable.

Good seat comfort ORF to ATL. Bad seat ATL to SEA (terrible lumbar support, hard, ouch)..

Because I was moved to an exit row, the snacks in economy comfort, the selection of snacks was better.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Horrible. No TV or any type of entertainment on board. Passwnger listening to/watching stuff on their own phone with no headphones making it noise and uncomfortable for everyone else, little/tiny food portions, old seats, useless wifi (cant access anything). Horrible exlerience especially it was a lomg distance flight with kids.

There should be a warning regarding the quality of the aircraft on the website as we reserve the tickets. There was no TV or any type of screen onboard. The wifi they offer is good for nothing. Traveling 9 hours straight with kids and no type of entetainment was horrible. I wish I had been informed prior so I could buy a ticket with another airline. The food was a joke too. A very tiny portion per passenger. They also charged $100 per checked bag. With United I used to pay $60. So, fair to say that I wont be flying Copa anymore. Their aircraft was super old, outdated, no entertainment, with nearly no onboard food.

Very strict carry on rules meant most of the plane had to gate check their luggage. As is often the case had things that were broken because of this, but I appreciated not being charged to gate check. Otherwise good flight and great crew once on the plane

Simply as follows:- First, there was no vegetarian option for the meal Second, only 2 washrooms for the entire economy class.

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

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.

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

The flighr attandants were very rude they ignored me didnt offer me anything to drink throughoit the 4 hour flight i feel i was targeted and ignored because i was a darkskin latino man.

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

This flight captain and crew were amazing, started ahead of time of departure and reached 30 mins before arrival time. Amazing!

Long delays, lack of information about the status of the flight. The flight was delayed 4 times.

Could we please end the loud announcements about credit card offers on your flights? We are trying to sleep, work, watch videos, etc. and if we need a credit card, we will ask for one. Flying is already not what it used to be.

I would like the crew to talk LESS over the PA and specifically about credit card offers. I am trying to work, sleep, watch a movie and the PA was booming about a credit card offer. Could we go back to the days when the customer was more important than selling a credit card?

Enough space,crew was helpful,food was good.The gates are way far especially for travelers with health issues

No enough space plus only allowing one laggage instead of two like other airlines.

There were no TV screens - even in Business class. 5 delays, and only given $12 meal voucher! Terrible!

It was good. But the gate team made me check my carry on when there was plenty of space for my luggage on the plane. Otherwise our trip was fine.

The entertainment options were at best, fair. It was exactly the same as my outbound flight. It would have been more entertaining if there were some series from Apple TV, HBO, Showtime or other carriers for me to catch up with.

Concern Regarding Significant Gate Delay and Jet Bridge Issue Dear Customer Relations Team, I am writing to express my disappointment with the experience I had on my recent flight AA 2414 on Sunday January 18, 2026. What should have been a routine departure turned into a frustrating and avoidable delay due to an issue with the jet bridge at the gate. As a result, the flight was delayed by approximately 90 minutes while multiple gate changes were attempted. The lack of clear communication during this period made the situation even more challenging. Passengers were left uncertain about the cause of the delay, the expected timeline, and the next steps. This not only disrupted travel plans but also created unnecessary stress for everyone on board. I understand that operational issues can arise, but a malfunctioning jet bridge and the resulting extended delay suggest an area where procedures or equipment maintenance may need attention. I hope you will review this incident to prevent similar disruptions in the future. I would appreciate acknowledgment of this concern and consideration of appropriate compensation for the inconvenience and lost time caused by this delay. Thank you for taking the time to review my experience. I look forward to hearing from you. Sincerely, Dion Dillard

Terrible. They canceled our early morning flight after midnight on the day of and had no available flights to rebook my family on for the next 72 hours. Yet they still had other flights that were not cancelled from JFK so it couldn’t be based on the weather. It felt like they canceled the flight based on it not being profitable enough for them. I am not interested in traveling with the again. The absolute worse customer service and lack of accountability.

Horribly rude check in at airport, worst in 25 years of flying. All over a simple issue they could have googled to resolve.

First time flying with JetBlue and never again. I went to the counter to request meet and assist because I'm 74 and my wife is 79. I walk with a cane and my wife is handicapped and has her own wheel chair. I told the agent that my wife and luggage was at the entrance door. The ticketing agent said to me that they don't offer meet and assist. I need to bring them our luggage and then go back and get my wife in order to get my boarding pass. As I went back to get my luggage a Southwest agent along with a TSA agent recognized the situation and came over and took my wife and luggage to the JetBlue ticketing counter alongside the line and told the JetBlue agent to issue to take our luggage as soon as they could.

Flight was fine, price was good but food onboard was abysmal. I was on there for breakfast and lunch and dinner 845am EST to 845pm GMT and all I got was a yoghurt parfait, fruit and a piece of cake. Later snacks included an ice-cream brownie and a pizza twist. I was hungry by the time I landed and the airport amenities were closed. Not happy.

1) No pilot available for 1 hour 2) no room for most passengers careyon in overhead—-> stowed below 3) when we landed we had to wait 45 min. Before docking at gate as gate was not ready

Good. No issues except a slight delay. Crew came in late.

Not a pleasant experience, service was poor. Didn't like it

It was good. I prefer JB over other airlines.I just wish we had headphones for the films, but other than that - good.

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.

Checking In on JetBlue site was impossible. It hung up on REAL ID. Even my Global Entry did not help. Luckily, on Kayak site it was a breeze. Entire flight the temperature was COLD! Otherwise the crew was great!

Extra legroom with my upgrade bundle. Clean aircraft, on-time departure, early arrival. Good value for the price.

I didn't have a flight because of a ticking problem that was discovered at the airport at checkin for the initial flight of the round trip.

Even though the plane was delayed from the previous airport, the staff recognized this and kept us informed. The flight crew was absolutely awesome from on my flight from Ft. Meyers to AC. Great experience all around!

Flight was delayed would have liked it to have been on time. I didn't experience the food or entertainment but the boarding process was smooth and the flight crew worked well together and did a great job!

Not seat assigned because overbooking. We could go because some people decided to give their seats.

Spirit loves to pick and choose when to harass you about your personal item. I’ve flown numerous times with the same bag with no problem yet flying out of Orlando they forced me to pay $99 for a carry on and then ran out of overhead space. Do better!

For the price of the fare, there really isn’t much to complain about.

didn't order food on board. there's no way to hold a water botton on the way. otherwise it was a pleasant flight, thanks to the crew.

Even though there was a delay the crew was exceptional.

Cheap, only one short delay. No issues despite bad weather. Able to take a big backpack for free.

Everything you need to know for your flight from Boston to Costa Rica

Information on your arrival and departure airports