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Costa Rica

$74+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$224
(Cheapflightsfares)

One-way from

$74
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$403

Good round-trip deal

$438 or less

Good one-way deal

$216 or less
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. 10% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/286:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Tue 11/41:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/15$224
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/303:00 pmBOS - SJO
2 stops21h 27mSpirit Airlines
Wed 10/812:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/16$227
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Wed 10/2212:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/15$228
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/76:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Tue 10/1412:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/16$235
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Wed 11/121:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 9/15$237
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Mon 10/2712:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/16$239
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/296:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Thu 11/61:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 9/14$242
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/178:24 pmBOS - SJO
1 stop17h 06mSpirit Airlines
Fri 10/2412:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/14$243
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/25:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Tue 11/111:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 9/15$244
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/156:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Thu 10/3012:35 pmSJO - BOS
1 stop9h 24mSpirit Airlines
Deal found 9/15$245
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/55:45 amBOS - SJO
1 stop7h 29mSpirit Airlines
Wed 11/191:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 9/14$246
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:16 amBOS - SJO
1 stop7h 14mSpirit Airlines
Tue 11/111:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 9/15$249

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 September 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

Sun 10/12

6:16 am-11:30 am

1 stop7h 14m

San José Juan Santamaria Intl

Thu 10/16

12:35 pm-11:59 pm

1 stop9h 24m

$285

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 10/26

6:20 am-12:06 pm

1 stop7h 46m

San José Juan Santamaria Intl

Mon 11/3

4:25 pm-7:41 am

1 stop14h 16m

$288

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 10/16

3:49 pm-4:52 pm

3 stops27h 03m

San José Juan Santamaria Intl

Thu 10/30

10:08 am-11:02 pm

1 stop10h 54m

$293

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 10/23

3:49 pm-4:52 pm

3 stops27h 03m

San José Juan Santamaria Intl

Mon 11/3

11:00 am-10:03 pm

1 stop10h 03m

$293

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 10/30

8:41 am-6:47 pm

1 stop12h 06m

San José Juan Santamaria Intl

Sun 11/9

5:50 pm-1:00 pm

1 stop18h 10m

$303

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 11/2

2:42 pm-8:19 am

1 stop18h 37m

San José Juan Santamaria Intl

Sat 11/8

4:08 am-1:00 pm

1 stop7h 52m

$303

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 10/13

3:49 pm-9:04 am

1 stop19h 15m

San José Juan Santamaria Intl

Mon 10/20

9:17 am-2:11 pm

3 stops26h 54m

$308

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 10/22

8:41 am-6:58 pm

1 stop12h 17m

San José Juan Santamaria Intl

Mon 10/27

9:17 am-2:13 pm

3 stops26h 56m

$308

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 1/25

3:07 pm-7:06 am

1 stop16h 59m

San José Juan Santamaria Intl

Thu 2/5

11:01 am-10:03 pm

1 stop10h 02m

$326

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mon 12/29

8:15 am-1:10 pm

Nonstop5h 55m

Liberia

Fri 1/9

3:55 pm-10:15 pm

Nonstop5h 20m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 35 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, September is the cheapest month in which you can book a flight from Boston to Costa Rica (average of $398). Flying from Boston to Costa Rica in March is currently the most expensive (average of $554). 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 September 16, 2025.

When flying from Boston to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 Friday mornings 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 September 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
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Copa Airlines
7.6
Good
1,531 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
JetBlue
7.2
Good
2,914 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Spirit Airlines
6.3
Okay
8,019 reviews
Delta
8.0
Very good
7,957 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 7h 14m. 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.

  • 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 $398). Flying from Boston to Costa Rica in March is currently the most expensive (average of $554). 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 San José flights
Boston to Liberia flights
Boston to Guatemala City flights
Boston to San Salvador flights
Boston to Panama City flights
Boston to Philip S.W.Goldson flights
Hartford to San José flights
Boston to Coxen Hole flights
Boston to Managua flights
Hartford to Panama City flights
Boston to San Pedro Sula flights
Hartford to Liberia flights
Albany to San José flights
Hartford to Guatemala City flights
Hartford to Coxen Hole flights
Hartford to Philip S.W.Goldson flights
Hartford to San Salvador flights
Albany to San Salvador flights
Albany to Panama City flights
Albany to Philip S.W.Goldson flights
Albany to Liberia flights
Albany to Guatemala City flights
Hartford to Managua flights
Worcester to Liberia flights
Worcester to San José flights
Worcester to San Salvador flights
Hartford to San Pedro Sula flights
Albany to Managua 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$224Average$449FlexibilityNo cancel feeOn-time67%
Spirit AirlinesCheapest$238Average$469FlexibilityNo cancel feeOn-time65%
AviancaCheapest$289Average$538FlexibilityNo cancel feeOn-time71%
FrontierCheapest$297Average$649FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$310Average$549FlexibilityNo cancel feeOn-time62%
Copa AirlinesCheapest$315Average$572FlexibilityNo cancel feeOn-time70%
DeltaCheapest$319Average$570FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$367Average$608FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$385Average$599FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$731FlexibilityNo cancel feeOn-time63%

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