$126 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 6/15. 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$296
Liberia
Liberia1 stop$376
San José
San José1 stop$296
Liberia
Liberia1 stop$376

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, May 25 - Tue, Jun 2
Multiple Airlines Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Multiple Airlines Logo
5:48 pm - 10:45 am
SJO
-
BOS
14h 57m
1 stop
$296Multiple Airlines
Wed, May 20 - Tue, May 26
Multiple Airlines Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Multiple Airlines Logo
5:48 pm - 10:45 am
SJO
-
BOS
14h 57m
1 stop
$298Multiple Airlines
Sat, Apr 25 - Thu, May 7
Spirit Airlines Logo
8:16 pm - 11:33 am
BOS
-
SJO
17h 17m
1 stop
Spirit Airlines Logo
1:00 pm - 11:54 pm
SJO
-
BOS
8h 54m
1 stop
$304Spirit Airlines
Wed, Apr 22 - Tue, May 5
Multiple Airlines Logo
8:16 pm - 11:33 am
BOS
-
SJO
17h 17m
1 stop
Multiple Airlines Logo
5:48 pm - 10:45 am
SJO
-
BOS
14h 57m
1 stop
$305Multiple Airlines
Fri, May 1 - Mon, May 4
Avianca Logo
4:50 pm - 11:40 pm
BOS
-
SJO
8h 50m
1 stop
Avianca Logo
5:05 am - 2:50 pm
SJO
-
BOS
7h 45m
1 stop
$309Avianca
Tue, Sep 29 - Sat, Oct 10
JetBlue Logo
6:00 am - 11:55 am
BOS
-
SJO
7h 55m
1 stop
JetBlue Logo
1:10 pm - 11:59 pm
SJO
-
BOS
8h 49m
1 stop
$315JetBlue
Thu, May 14 - Fri, May 22
Copa Airlines Logo
4:00 pm - 8:21 am
BOS
-
SJO
18h 21m
1 stop
Copa Airlines Logo
4:10 am - 11:08 pm
SJO
-
BOS
16h 58m
1 stop
$318Copa Airlines
Wed, Apr 22 - Tue, Apr 28
JetBlue Logo
9:52 am - 1:35 pm
BOS
-
LIR
5h 43mnonstop
JetBlue Logo
2:55 pm - 10:18 pm
LIR
-
BOS
5h 23mnonstop
$402JetBlue
Thu, Apr 23 - Thu, Apr 30
American Airlines Logo
5:00 am - 1:10 pm
BOS
-
LIR
10h 10m
1 stop
American Airlines Logo
2:40 pm - 10:02 am
LIR
-
BOS
17h 22m
1 stop
$416American Airlines
Sat, Apr 25 - Sat, May 2
American Airlines Logo
6:53 pm - 11:28 am
BOS
-
LIR
18h 35m
1 stop
American Airlines Logo
2:40 pm - 8:26 am
LIR
-
BOS
15h 46m
2 stops
$421American Airlines
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 $381 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 $381.

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 $532 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 October, when tickets cost $340 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $633 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$126
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 3% 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 8387 reviews
7.9Comfort
8.5Crew
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

10.0 ExcellentRay, Apr 2026
FWA - ATL
Read more Delta reviews

Flight from Fort Wayne to Atlanta was the smallest in terms of cabin space that I've ever seen. A carry on I've used for 20 years BARELY fit in overhead compartment. I'm 5'10" and felt very cramped. Not the best experience.

I am writing to express my dissatisfaction with the poor service and unprofessional staff we encountered when traveling with an infant. Our flight was delayed, and the gate staff failed to manage the boarding process appropriately. Due to incorrect, unavailable, or missing 'pink tag' stroller and car seat check-in procedures at the gate, we were forced to board last. Furthermore, the gate staff was rude and dismissive, causing significant distress to our infant. To make matters worse, one of our checked items—an infant sleeper/lounger—was returned to us broken. Given the unsafe handling of essential equipment and unprofessional treatment, I expect a prompt resolution regarding compensation for the damaged items.

We departed and landed early which was a nice surprise. The boarding process was slow.

N Everything was perfect from boarding to assistance to baggage in Tampa

Subpar. The seating on the plane is almost unbearable. We are literally touching and/or sitting on each other which is totally unacceptable and shameful. Pilots and crew was very accommodating and friendly.

The boarding was organized and informative but the plane was tight meaning that you were sitting on one another and extremely uncomfortable. It’s disappointing that can’t have common seating comfort on the plane.

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

I was told that they needed to check my bag at the gate and to pick it up at the gate in Richmond. No big deal. I know they can't control the weather, but we flew around RIC for 45 minutes to avoid the storm and were 25 minutes late leaving as well. Once we landed, we were told to go to baggage claim to pick up our luggage. I went to bathroom, paid for parking, and went to the assigned baggage claim location. United flight people came down with us as well. They got their luggage immediately. Next, South West people came down about 10 minutes later. They got their luggage next. We finally got our luggage around 30 minutes in waiting. Was not a wonderful experience. No reflection on Delta, but the ground crew was lousy at best.

Everything could have benn better. Short fly, no food, no entertainment and no wifi.

Flight delayed. Air broken. Cabin was hot enough to pass out. Delta shuttle’s becoming worse and worse.

Entire experience from check in to landing was amazing the flight crew was excellent and friendly. Seats were comfortable.

Avoid at all costs. My wife had to stay back on a connecting flight as her parents flight was delayed. 10 days later on the way back they cancelled all our flights. We had to rebook all four of us on the next days flight.

Copa staff at PTY and one particular crew member were unhelpful & rude.

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.

We were delayed and had to circle due to weather and had to divert for fuel. While I understand that you can’t control the weather I would have appreciated knowing that the crew wasn’t going to run out of hours and then having to spend the night in the Raleigh airport.

Messy plane that was falling apart Small screens that didn't work

I was traveling with two small kids and our TV s were the only ones not working. Informed the flight attendant who did nothing about them.

They forced me to check my hand luggage at the gate.

I specifically choose not to check bags to ensure I can proceed directly to ground transportation upon arrival. However, due to a recurring lack of cabin space, I was again forced to gate-check my rolling luggage after going through my luggage to take out electronics and batteries. This practice unilaterally changes the service agreement made at the time of purchase. JetBlue needs to find a better way to manage overhead space that honors the carry-on baggage allowance.

Still hasn’t left. Why are you asking how it was?

Flight was good wish there were more snacks options for such a long flight but stewardesses were very pleasant as was flight crew.

I was denied a plastic fork to eat my food and was told plastic forks are for paying customers who buy Jet Blue’s food. So I had to make a utensil out of a cup so nourish my body. Like a refugee. Because decency is dead.

I was especially impressed without efficiently the crew got passengers on and off. One of the stewards was slightly gruff, I thought. No big deal but that's what I noticed.

Absolutely horrible. Flight was delayed 4 hours and they had no clue what was going on.

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

there are no options s for snack besides cookies would ve nice to have a salty option n

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Going non stop to lax like I paid for. Not stopping in MCI for gas. Too long of delays

Human interaction. Thought there would be more service-even a smile would have been nice.

It was canceled at the last minute. While I was literally at the airport. Messed my entire trip up.

They cancelled my flight with no reason affecting my travel plans and delaying it 24 hours.

a weekend long saga that ultimately led to a canceled trip. totally unreliable.

Everything was horrible. They delayed my flight so I missed my connection flight and I lost my bags. I had to go to the same workers multiple times asking the same questions because everyone kept giving me different answers. One person closed down customer service because he wanted to go on lunch so there was like 30 people just waiting for hours because no one would relieve him.

Landing was technically perfect. What I didn't like is the pricey internet. Both flights with excellent crews. I'm 6 feet 210 pounds and could easily fit in the chair.

Paid for WiFi and the connection was basically nonexistent. Was pleasantly surprised with everything else. Staff was great. Boarding was easy. Plane was clean. Overall, a very pleasant experience

Long long delay, no AC while delayed, gate changes, just for the most uncomfortable flight of your life.

Everything was smooth sailing. Great crew, easy flight and was surprised with an upgraded seat. Thank you all!

My first time experience with Spirit Air was not good at all.The reason i did not know to cancel 24Hrs before flight depature you do charge cancellation fee. It's ridiculous policy.Actually you should provide full voucher instead of charging cancellation fee. Confirmation Code# ZNVPHG Thanks Much , Rita S

I truly admired that the last minute flight attendants were willing to come to serve flight # 1465 and think they should be extra compensated. Doesn't have to beonetary a star a permanent position with Spirit as long as she flies etc. They were o so pleasant and accommodating. 😊😊. Please also serve water. Plain unadulterated water 💧! Invest in a filter of your own the cost of bottles are a penny on the dollar and you could have a plug on advertising with labeling. This could be hilarious "WATER TO REFREST THE SPIRIT FROM SPIRIT ITSELF!" - Free idea!😄😄😄. Anyway overall, though a tad late the flight met expectations. Thanks you Spirit, for everything.

We were delayed and the bag charge fees are very expensive.

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

Information on your arrival and departure airports