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$106+ Cheap flights from Boston (BOS) to Costa Rica

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
nov. 29 — dic. 61
sáb. 11/29
sáb. 12/6
1 adult, Economy
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Cheap flight deals from Boston to Costa Rica

Keep the following information in mind while searching for Boston to Costa Rica flight deals. Data was last updated octubre 30, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$237
(Mytrip)

One-way from

$106
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$404

Good round-trip deal

$378 or less

Good one-way deal

$172 or less
Provider with most accurate pricing for Boston Logan Intl-Costa Rica flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Costa Rica flights.
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From Boston Logan Intl to Costa Rica
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One-way flight from Boston Logan Intl to Costa Rica
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Highest demand for flights based on searches. 7% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Costa Rica.
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Price to beat on a one-way flight from Boston Logan Intl to Costa Rica.
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Find flight deals from Boston to Costa Rica

Cheapest flights from Boston to Costa Rica
Explore the most affordable flight options available from Boston to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 30, 2025.

This Trip.com deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/68:30 pmBOS - SJO
1 stop13h 22mJetBlue
lun. 12/229:38 amSJO - BOS
1 stop11h 10mJetBlue
Deal found 10/29$249
This JetBlue deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/48:30 pmBOS - SJO
1 stop13h 22mJetBlue
jue. 12/1110:00 amSJO - BOS
1 stop12h 11mJetBlue
Deal found 10/30$252
This Cheapflightsfares deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/186:16 amBOS - SJO
1 stop7h 09mSpirit Airlines
vie. 11/211:20 pmSJO - BOS
1 stop9h 33mSpirit Airlines
Deal found 10/30$255
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/411:15 amBOS - SJO
2 stops11h 58mAmerican Airlines
vie. 11/71:23 pmSJO - BOS
1 stop9h 53mAmerican Airlines
Deal found 10/30$256
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/97:44 amBOS - SJO
1 stop15h 29mAmerican Airlines
mié. 11/193:11 pmSJO - BOS
1 stop8h 40mAmerican Airlines
Deal found 10/30$257
This American Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/306:13 pmBOS - SJO
1 stop21h 25mAmerican Airlines
lun. 11/36:22 amSJO - BOS
1 stop15h 40mAmerican Airlines
Deal found 10/30$259
This American Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/136:45 amBOS - SJO
1 stop16h 28mAmerican Airlines
lun. 11/176:00 amSJO - BOS
1 stop11h 29mAmerican Airlines
Deal found 10/29$263
This Mytrip deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/153:55 pmBOS - SJO
3 stops21h 30mSpirit Airlines
mié. 11/191:30 pmSJO - BOS
1 stop9h 29mSpirit Airlines
Deal found 10/30$265
This Kiwi.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 11/116:16 amBOS - SJO
1 stop7h 09mSpirit Airlines
mar. 11/181:30 pmSJO - BOS
1 stop9h 29mSpirit Airlines
Deal found 10/30$266
This Expedia deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/318:15 amBOS - LIR
Nonstop5h 55mJetBlue
mar. 1/64:05 pmLIR - BOS
Nonstop5h 21mJetBlue
Deal found 10/30$330
This Expedia deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/133:40 pmBOS - LIR
1 stop23h 06mJetBlue
sáb. 12/202:30 pmLIR - BOS
Nonstop5h 21mJetBlue
Deal found 10/30$331
This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/146:25 pmBOS - LIR
1 stop19h 15mDelta
sáb. 12/201:40 pmLIR - BOS
Nonstop5h 21mDelta
Deal found 10/30$335

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Costa Rica that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
Use the filters below to find and compare flights from Boston to Costa Rica that are best for you.

Fly from

Boston

Fly to

Costa Rica

Route

Depart

Return

Price

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 11/11

9:00 am-8:39 pm

2 stops12h 39m

San José Juan Santamaria Intl

mar. 11/18

12:35 pm-11:15 pm

1 stop9h 40m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

lun. 12/8

7:40 pm-8:52 am

1 stop14h 12m

San José Juan Santamaria Intl

mar. 12/16

10:00 am-11:11 pm

1 stop12h 11m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 11/18

9:40 am-8:39 pm

2 stops11h 59m

San José Juan Santamaria Intl

dom. 11/23

11:28 pm-10:39 am

1 stop10h 11m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

sáb. 11/8

9:35 am-8:39 pm

1 stop12h 04m

San José Juan Santamaria Intl

mar. 11/11

11:28 pm-10:38 am

1 stop10h 10m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 11/11

12:00 pm-7:53 pm

1 stop8h 53m

San José Juan Santamaria Intl

lun. 11/17

8:45 am-11:15 pm

1 stop13h 30m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

dom. 1/18

11:42 am-8:39 pm

1 stop9h 57m

San José Juan Santamaria Intl

mié. 1/28

6:30 am-6:01 pm

1 stop10h 31m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

sáb. 11/8

9:35 am-8:39 pm

1 stop12h 04m

San José Juan Santamaria Intl

lun. 11/10

8:45 am-11:15 pm

1 stop13h 30m

$252

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mié. 11/19

7:34 am-6:55 pm

1 stop12h 21m

San José Juan Santamaria Intl

lun. 11/24

4:08 am-10:03 pm

1 stop16h 55m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 12/2

2:44 pm-7:10 am

1 stop17h 26m

San José Juan Santamaria Intl

dom. 12/7

4:08 am-10:40 pm

1 stop17h 32m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 11/13

7:34 am-6:55 pm

1 stop12h 21m

San José Juan Santamaria Intl

dom. 11/16

4:08 am-10:03 pm

1 stop16h 55m

$282

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 38 results
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  • Most accurate provider: When it comes to deals on Boston-Costa Rica flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Boston-Costa Rica flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Boston-Costa Rica flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Costa Rica flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Costa Rica flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Boston to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $212). Flying from Boston to Costa Rica in August is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to CR?

Find hourly flight availability from Boston to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated octubre 30, 2025.

One of the essential ways to save on airfare from Boston to Costa Rica is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 26% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Costa Rica. Price data was last updated on October 20, 2024.

Travelers seeking maximum savings on their Boston to Costa Rica flight should consider departing on Sunday at noon when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Costa Rica

Get insights into the airlines that provide service to Costa Rica. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Costa Rica. Reviews last updated octubre 30, 2025.
Peruse reviews from past customers who have flown with Delta, Copa Airlines, and American Airlines from Boston to Costa Rica to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Copa Airlines
7.6
Good
1,561 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,033 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
JetBlue
7.2
Good
2,906 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Spirit Airlines
6.3
Okay
8,115 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Boston to Costa Rica. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Boston to Costa Rica?

    Most people fly from Boston Logan Intl (BOS) if they book a flight from Boston to Costa Rica. Boston Logan Intl is conveniently located just 2.6 mi from Boston’s city center.

  • How long is the flight from Boston to Costa Rica?

    Departing from Boston to Costa Rica will take you 12h 39m. The distance between Boston and Costa Rica is about 2373 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Boston to Costa Rica one-way?

    The cheapest airlines for a one-way flight from Boston to Costa Rica are American Airlines ($110), United Airlines ($110), and JetBlue ($137).

  • Can I find deals for flights from Boston to Costa Rica that include hotel bookings?

    Yes. In addition to deals on Boston to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Costa Rica?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Costa Rica.

  • Can I find deals for business class flights from Boston to Costa Rica?

    Yes. Cheapflights offers flight deals from Boston to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $212). Flying from Boston to Costa Rica in August is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Boston to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Liberia flights
Boston to San José flights
Boston to Panama City flights
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Albany to San José flights
Hartford to Guatemala City flights
Hartford to Panama City flights
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Albany to Philip S.W.Goldson flights
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Hartford to San Salvador flights
Albany to Panama City flights
Albany to San Salvador flights
Hartford to San Pedro Sula flights
Albany to Guatemala City flights
Hartford to Managua flights
Worcester to San José flights
Albany to Managua flights
Worcester to Liberia flights
Worcester to San Salvador flights
Boston to Tegucigalpa flights
Worcester to Philip S.W.Goldson flights
New Bedford to Panama City flights

Top 10 airlines flying from Boston to Costa Rica

Discover the top 10 airlines that operate flights from Boston to Costa Rica. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated octubre 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$161Average$449FlexibilityNo cancel feeOn-time67%
Spirit AirlinesCheapest$221Average$421FlexibilityNo cancel feeOn-time65%
Copa AirlinesCheapest$275Average$553FlexibilityNo cancel feeOn-time70%
JetBlueCheapest$291Average$537FlexibilityNo cancel feeOn-time62%
FrontierCheapest$297Average$649FlexibilityNo cancel feeOn-time62%
DeltaCheapest$309Average$562FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$333Average$591FlexibilityNo cancel feeOn-time71%
AviancaCheapest$334Average$564FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$378Average$588FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$781FlexibilityNo cancel feeOn-time63%

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