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Costa Rica

$111+ 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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheap 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 diciembre 16, 2025.

This Super.com deal was found by Cheapflights users on 12/15. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/199:12 pmBOS - SJO
1 stop12h 26mJetBlue
dom. 12/219:38 amSJO - BOS
1 stop11h 10mJetBlue
Deal found 12/15$287
This American Airlines deal was found by Cheapflights users on 12/15. 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. 12/168:00 amBOS - SJO
1 stop13h 49mAmerican Airlines
mar. 12/233:29 pmSJO - BOS
1 stop8h 30mAmerican Airlines
Deal found 12/15$303
This Copa Airlines deal was found by Cheapflights users on 12/16. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/172:44 pmBOS - SJO
1 stop17h 26mCopa Airlines
mié. 12/245:49 amSJO - BOS
1 stop15h 51mCopa Airlines
Deal found 12/16$332
This United Airlines deal was found by Cheapflights users on 12/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/1712:50 pmBOS - SJO
1 stop25h 06mUnited Airlines
mié. 12/248:45 amSJO - BOS
2 stops14h 09mUnited Airlines
Deal found 12/16$353
This American Airlines deal was found by Cheapflights users on 12/16. 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.
mié. 12/178:40 pmBOS - SJO
1 stop14h 52mAmerican Airlines
mar. 12/2312:34 amSJO - BOS
1 stop19h 46mAmerican Airlines
Deal found 12/16$368
This American Airlines deal was found by Cheapflights users on 12/15. 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. 12/235:25 amBOS - LIR
1 stop10h 02mAmerican Airlines
mar. 12/303:13 pmLIR - BOS
1 stop17h 42mAmerican Airlines
Deal found 12/15$391
This JetBlue deal was found by Cheapflights users on 12/15. 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.
mié. 12/317:04 pmBOS - SJO
1 stop14h 34mJetBlue
mié. 1/79:57 amSJO - BOS
1 stop8h 22mJetBlue
Deal found 12/15$397
This Priceline deal was found by Cheapflights users on 12/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/158:11 pmBOS - SJO
1 stop16h 31mSpirit Airlines
lun. 12/221:31 pmSJO - BOS
1 stop9h 26mSpirit Airlines
Deal found 12/14$398
This Kiwi.com deal was found by Cheapflights users on 12/15. 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.
mié. 12/316:00 amBOS - SJO
2 stops31h 25mMultiple Airlines
vie. 1/92:58 pmSJO - BOS
1 stop9h 21mMultiple Airlines
Deal found 12/15$410
This Frontier deal was found by Cheapflights users on 12/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/316:00 amBOS - SJO
1 stop8h 42mFrontier
vie. 1/92:58 pmSJO - BOS
1 stop9h 21mFrontier
Deal found 12/15$411
This American Airlines deal was found by Cheapflights users on 12/15. 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.
mié. 12/178:40 pmBOS - LIR
1 stop15h 04mAmerican Airlines
vie. 12/261:21 pmLIR - BOS
1 stop10h 38mAmerican Airlines
Deal found 12/15$420
This Delta deal was found by Cheapflights users on 12/16. 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.
mié. 12/175:40 amBOS - LIR
1 stop8h 00mDelta
vie. 12/262:05 pmLIR - BOS
1 stop8h 06mDelta
Deal found 12/16$426

Find 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 diciembre 16, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$253
(American Airlines)

One-way from

$111
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$686

Good round-trip deal

$362 or less

Good one-way deal

$142 or less
Provider with most accurate pricing for Boston Logan Intl-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-San José Juan Santamaria Intl 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
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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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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 diciembre 16, 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. 2/10

3:07 pm-7:06 am

1 stop16h 59m

San José Juan Santamaria Intl

mar. 2/17

10:08 am-10:03 pm

1 stop10h 55m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

lun. 2/2

3:07 pm-8:21 am

1 stop18h 14m

San José Juan Santamaria Intl

jue. 4/30

10:04 am-11:09 pm

1 stop11h 05m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 3/10

4:05 pm-9:05 am

1 stop19h 00m

San José Juan Santamaria Intl

mar. 4/28

5:46 am-11:09 pm

1 stop15h 23m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 1/13

3:07 pm-7:06 am

1 stop16h 59m

San José Juan Santamaria Intl

mar. 1/27

11:01 am-10:03 pm

1 stop10h 02m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 3/12

4:05 pm-9:05 am

1 stop19h 00m

San José Juan Santamaria Intl

jue. 3/19

10:08 am-11:10 pm

1 stop11h 02m

$282

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 1/22

8:05 am-11:43 pm

1 stop16h 38m

San José Juan Santamaria Intl

lun. 1/26

4:02 pm-10:04 am

1 stop17h 02m

$285

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 1/29

3:07 pm-4:46 pm

3 stops26h 39m

San José Juan Santamaria Intl

lun. 2/9

8:11 am-10:03 pm

1 stop12h 52m

$287

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 2/5

3:07 pm-4:46 pm

3 stops26h 39m

San José Juan Santamaria Intl

mar. 2/10

10:08 am-10:03 pm

1 stop10h 55m

$287

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 2/17

3:07 pm-7:06 am

1 stop16h 59m

San José Juan Santamaria Intl

mié. 2/18

10:08 am-10:03 pm

1 stop10h 55m

$291

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

sáb. 1/24

7:25 am-12:25 pm

Nonstop6h 00m

Liberia

sáb. 1/31

1:40 pm-7:55 pm

Nonstop5h 15m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 42 results
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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, November is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $190). 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 diciembre 16, 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 December 16, 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. Friday at noon 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 diciembre 16, 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
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Copa Airlines
7.6
Good
1,556 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
JetBlue
7.2
Good
2,895 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Spirit Airlines
6.3
Okay
8,186 reviews
Delta
7.9
Good
8,008 reviews

Crew

8.5

Entertainment

7.9

Comfort

7.9

Food

7.3

Overall

7.9

Boarding

8.1

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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 6h. The distance between Boston and Costa Rica is about 2363 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 Spirit Airlines ($94), JetBlue ($108), and United Airlines ($109).

  • 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, November is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $190). 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

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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
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Albany to Managua flights
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Worcester to San José flights
Worcester to Liberia flights
Worcester to San Salvador flights
Worcester to Philip S.W.Goldson flights
New Bedford to Panama City flights
Boston to Tegucigalpa 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 diciembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$161Average$449FlexibilityNo cancel feeOn-time67%
Spirit AirlinesCheapest$219Average$411FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$251Average$521FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$265Average$544FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$273Average$487FlexibilityNo cancel feeOn-time70%
FrontierCheapest$297Average$649FlexibilityNo cancel feeOn-time62%
DeltaCheapest$309Average$549FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$320Average$573FlexibilityNo cancel feeOn-time71%
AviancaCheapest$327Average$572FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$441Average$850FlexibilityNo cancel feeOn-time63%

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