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Costa Rica

$102+ 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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$312
(Cheapflightsfares)

One-way from

$102
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$539

Good round-trip deal

$438 or less

Good one-way deal

$1,157 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. 13% potential increase in price ($82 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/95:45 amBOS - SJO
1 stop7h 29mSpirit Airlines
Wed 12/171:19 pmSJO - BOS
1 stop10h 21mSpirit Airlines
Deal found 7/29$312
This Mytrip deal was found by Cheapflights users on 7/28. 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 8/128:39 pmBOS - SJO
1 stop16h 33mMultiple Airlines
Sat 8/168:14 amSJO - BOS
2 stops12h 20mMultiple Airlines
Deal found 7/28$322
This Copa Airlines deal was found by Cheapflights users on 7/30. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:42 pmBOS - SJO
1 stop18h 37mCopa Airlines
Tue 11/184:08 amSJO - BOS
1 stop16h 55mCopa Airlines
Deal found 7/30$323
This United Airlines deal was found by Cheapflights users on 7/30. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:43 amBOS - SJO
2 stops11h 54mUnited Airlines
Tue 10/77:55 amSJO - BOS
1 stop11h 43mUnited Airlines
Deal found 7/30$332
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/29:22 amBOS - SJO
2 stops12h 53mAmerican Airlines
Wed 9/176:00 amSJO - BOS
2 stops13h 46mAmerican Airlines
Deal found 7/30$335
This Air Canada deal was found by Cheapflights users on 7/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:15 amBOS - LIR
1 stop28h 35mAir Canada
Tue 11/112:50 pmLIR - BOS
1 stop17h 42mAir Canada
Deal found 7/30$338
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 9/65:47 amBOS - LIR
1 stop8h 02mAmerican Airlines
Sat 9/202:02 pmLIR - BOS
1 stop19h 48mAmerican Airlines
Deal found 7/30$343
This JetBlue deal was found by Cheapflights users on 7/29. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:40 amBOS - SJO
1 stop7h 15mJetBlue
Thu 10/91:00 pmSJO - BOS
1 stop8h 59mJetBlue
Deal found 7/29$348
This JetBlue deal was found by Cheapflights users on 7/30. 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.
Sat 11/110:43 amBOS - LIR
Nonstop5h 37mJetBlue
Sat 11/154:43 pmLIR - BOS
Nonstop5h 17mJetBlue
Deal found 7/30$378
This Delta deal was found by Cheapflights users on 7/30. 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.
Sat 10/45:35 amBOS - LIR
1 stop8h 25mDelta
Sat 10/111:25 pmLIR - BOS
1 stop9h 48mDelta
Deal found 7/30$393
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Sat 11/17:00 amBOS - LIR
1 stop13h 37mUnited Airlines
Sat 11/158:35 amLIR - BOS
2 stops14h 07mUnited Airlines
Deal found 7/28$397

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 July 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

Sat 8/30

6:05 am-11:12 am

1 stop7h 07m

San José Juan Santamaria Intl

Sun 9/7

12:19 pm-11:55 pm

1 stop9h 36m

$312

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 8/12

8:39 pm-11:12 am

1 stop16h 33m

San José Juan Santamaria Intl

Sat 8/16

8:14 am-10:34 pm

2 stops12h 20m

$322

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/23

7:10 am-7:37 pm

2 stops14h 27m

San José Juan Santamaria Intl

Tue 10/7

12:44 pm-10:56 pm

1 stop8h 12m

$332

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/2

9:22 am-8:15 pm

2 stops12h 53m

San José Juan Santamaria Intl

Wed 9/17

6:00 am-9:46 pm

2 stops13h 46m

$335

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sat 9/6

5:47 am-11:49 am

1 stop8h 02m

Liberia

Sat 9/20

2:02 pm-11:50 am

1 stop19h 48m

$343

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 10/4

6:40 am-11:55 am

1 stop7h 15m

San José Juan Santamaria Intl

Thu 10/9

1:00 pm-11:59 pm

1 stop8h 59m

$348

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sat 10/4

5:35 am-12:00 pm

1 stop8h 25m

Liberia

Sat 10/11

1:25 pm-1:13 am

1 stop9h 48m

$393

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Tue 8/12

7:45 am-2:23 pm

1 stop8h 38m

Liberia

Mon 8/18

3:25 pm-11:01 am

2 stops17h 36m

$417

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mon 8/18

7:10 am-1:05 pm

1 stop7h 55m

Liberia

Mon 9/1

2:10 pm-12:27 am

1 stop8h 17m

$471

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Tue 9/16

7:20 am-6:20 am

3 stops25h 00m

Liberia

Tue 9/23

11:20 am-3:00 pm

2 stops25h 40m

$492

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 23 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 $555). 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 July 30, 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 Sunday 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 July 30, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Overall

8.0

Food

7.1

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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.

  • 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 ($102), American Airlines ($152), and Delta ($156).

  • 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 $555). 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 Panama City flights
Boston to San José flights
Boston to San Salvador flights
Boston to Guatemala City flights
Boston to Liberia flights
Boston to Philip S.W.Goldson flights
Hartford to Panama City flights
Hartford to San José flights
Boston to San Pedro Sula flights
Boston to Coxen Hole flights
Boston to Managua flights
Hartford to Philip S.W.Goldson flights
Albany to San José flights
Hartford to Liberia flights
Albany to Liberia flights
Albany to Panama City flights
Albany to Guatemala City flights
Hartford to Guatemala City flights
Hartford to Coxen Hole flights
Hartford to San Salvador flights
Albany to Philip S.W.Goldson flights
Hartford to San Pedro Sula flights
Hartford to Managua flights
Albany to San Salvador flights
Worcester to Liberia flights
Albany to Managua flights
Worcester to San José 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$161Average$449FlexibilityNo cancel feeOn-time67%
Spirit AirlinesCheapest$250Average$469FlexibilityNo cancel feeOn-time65%
AviancaCheapest$288Average$533FlexibilityNo cancel feeOn-time71%
Copa AirlinesCheapest$297Average$564FlexibilityNo cancel feeOn-time70%
FrontierCheapest$297Average$595FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$319Average$548FlexibilityNo cancel feeOn-time62%
DeltaCheapest$348Average$586FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$384Average$616FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$401Average$606FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$463Average$728FlexibilityNo cancel feeOn-time63%

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