$113 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 12/8. 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.
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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$249
Liberia
Liberianonstop$300
San José
San José1 stop$249
Liberia
Liberianonstop$300

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

Sun, Jan 11 - Fri, Jan 16
American Airlines Logo
6:43 am - 10:30 pmBOS-SJO
16h 47m1 stop
American Airlines Logo
4:02 pm - 10:00 amSJO-BOS
16h 58m1 stop
$249American Airlines
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Sun, Feb 1 - Thu, Feb 5
American Airlines Logo
7:00 am - 10:30 pmBOS-SJO
16h 30m1 stop
American Airlines Logo
8:00 am - 8:11 pmSJO-BOS
11h 11m2 stops
$253American Airlines
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Sat, Jan 24 - Sun, Feb 8
American Airlines Logo
12:30 pm - 10:30 pmBOS-SJO
11h 00m1 stop
American Airlines Logo
4:02 pm - 10:01 amSJO-BOS
16h 59m1 stop
$254American Airlines
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Tue, Dec 16 - Fri, Dec 19
Spirit Airlines Logo
8:11 pm - 11:42 amBOS-SJO
16h 31m1 stop
Spirit Airlines Logo
1:31 pm - 11:57 pmSJO-BOS
9h 26m1 stop
$257Spirit Airlines
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Sat, Dec 20 - Fri, Jan 2
JetBlue Logo
7:29 pm - 8:53 amBOS-SJO
14h 24m1 stop
JetBlue Logo
9:38 am - 9:48 pmSJO-BOS
11h 10m1 stop
$258JetBlue
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Sat, Dec 13 - Tue, Dec 16
Spirit Airlines Logo
8:11 pm - 11:42 amBOS-SJO
16h 31m1 stop
Spirit Airlines Logo
1:31 pm - 11:56 pmSJO-BOS
9h 25m1 stop
$264Spirit Airlines
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Wed, Apr 1 - Tue, Apr 7
JetBlue Logo
7:15 am - 11:02 amBOS-LIR
5h 47mnonstop
JetBlue Logo
12:30 pm - 8:00 pmLIR-BOS
5h 30mnonstop
$300JetBlue
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Sat, Jan 24 - Sat, Jan 31
Delta Logo
6:55 am - 1:50 pmBOS-LIR
7h 55m1 stop
Delta Logo
1:40 pm - 7:55 pmLIR-BOS
5h 15mnonstop
$301Delta
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Tue, Jan 6 - Tue, Jan 13
Delta Logo
6:10 pm - 1:24 pmBOS-LIR
20h 14m1 stop
Delta Logo
2:45 pm - 10:51 amLIR-BOS
19h 06m1 stop
$311Delta
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Sat, Jan 10 - Sat, Jan 17
United Airlines Logo
7:22 pm - 1:10 pmBOS-LIR
18h 48m2 stops
United Airlines Logo
8:35 am - 11:49 pmLIR-BOS
14h 14m2 stops
$315United Airlines
Find Deal
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 $300 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 $300.

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 $509 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 $389 (return) on average. On the other hand, the most expensive months are December and February, when the average cost of round-trip tickets is $706 and $579 respectively.

What’s the cheapest day of the week to fly from Boston to Costa Rica?

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

If your flying dates are flexible, you should consider flying to Costa Rica on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Boston to Costa Rica. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

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 23% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.

Good to know

Low seasonOctober
Cheapest flight$113
Best time to beat the crowds with an average 36% drop in price.
Most popular time to fly and prices are also 25% 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.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally at night, when round-trip flights cost $445 on average. Morning departures are around 20% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is $583.

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 8011 reviews
7.9Comfort
7.9Entertainment
8.1Boarding
8.5Crew
7.3Food
Airline reviews

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

4.0 OkayCarl, Dec 2025FLL - LGA
Read more Delta reviews

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

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.

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.

Very happy with my flight. I would definitely recommend it.

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

Enforce the boarding process by group numbers. Tell people to stay seated during the meal/drink distribution. It took forever to get food and drinks because people would not stay out the isle and let the crew do their jobs. Everyone wanted to go to the bathroom forcing the crew to enter and leave the isle constantly so people can pass. Tell people to keep their electronics off speaker mode. No one wants to hear phone conversations and music playing.

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.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Liked that it was on time. Staff professional and friendly.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

My flight was delayed about three hours. I got home at 3:30 in the morning very bad experience.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

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!

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.

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

There was a fowl odour coming from the lavatory the entire flight

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).

No internet on a flight over three hours in this age is criminal. Staff inattentive and dismissive

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.

never ever fly spirit airlines you will be screwed in the end

I didn't eat, so I can't rate the food. Delayed set off was beyond

No free snacks or drinks. Freezing. Uncomfortable. No plugs or entertainment. If you fly to LA the make you change terminals with a slow bus. Awful trip that took forever. Terrible airline- maybe the worst I’ve ever flown.

I hope you continue to be one of the great company

Crew are always very angry and dismissive like they seem they are being forced to work. In addition, there was a long line for the bathrooms, and only one was allowed to be used. No reason was given for only one bathroom being available; apparently, the stewardess was more interested in using the jumpseat instead of allowing the customers to use the bathroom.

Very positive in both directions. Safe travels, nice staff, lost and found in fact found my phone under my chair! I was out of cash after my NYC trip otherwise I would've offered a reward for helping my day out immensly! Thanks you so much Spirit staff!

I stopped flying spirit as much because they are crooks and thieves. It's not like other airlines where you can at least get credits they just take your money.

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

Information on your arrival and departure airports