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Costa Rica

$87+ 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 9/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — SJO
Aug 6 — Aug 131
Mi 8/6
Mi 8/13
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 August 1, 2025.

Round-trip from

$312
(Cheapflightsfares)

One-way from

$87
(FlightHub)

Popular in

December

Cheapest in

September

Average price

$463

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 August 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 August 1, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 8/306:05 amBOS - SJO
1 stop7h 07mSpirit Airlines
So 9/712:19 pmSJO - BOS
1 stop9h 36mSpirit Airlines
Deal found 7/30$312
This Copa Airlines deal was found by Cheapflights users on 7/31. 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.
Do 10/303:49 pmBOS - SJO
1 stop17h 45mCopa Airlines
Mo 11/310:08 amSJO - BOS
1 stop10h 55mCopa Airlines
Deal found 7/31$323
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 8/286:05 amBOS - SJO
1 stop7h 07mMultiple Airlines
Do 9/47:30 amSJO - BOS
2 stops13h 40mMultiple Airlines
Deal found 7/30$331
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.
Di 9/25:13 amBOS - SJO
1 stop10h 27mAmerican Airlines
Mi 9/177:27 amSJO - BOS
2 stops12h 19mAmerican Airlines
Deal found 7/30$335
This JetBlue deal was found by Cheapflights users on 8/1. 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.
Mo 9/16:25 amBOS - SJO
1 stop7h 30mJetBlue
Do 9/111:00 pmSJO - BOS
1 stop8h 59mJetBlue
Deal found 8/1$337
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.
Mo 11/310:15 amBOS - LIR
1 stop28h 35mAir Canada
Di 11/112:50 pmLIR - BOS
1 stop27h 22mAir Canada
Deal found 7/30$338
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 9/155:35 amBOS - LIR
1 stop8h 25mDelta
Mi 9/171:25 pmLIR - BOS
1 stop9h 53mDelta
Deal found 7/29$343
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.
Mi 8/205:55 amBOS - LIR
1 stop9h 04mAmerican Airlines
Mi 8/2712:35 pmLIR - BOS
2 stops17h 00mAmerican Airlines
Deal found 7/30$347
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.
Di 8/195:25 amBOS - SJO
1 stop9h 01mUnited Airlines
Mo 9/157:55 amSJO - BOS
2 stops14h 02mUnited Airlines
Deal found 7/30$347
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.
Sa 9/64:27 pmBOS - LIR
2 stops21h 43mUnited Airlines
Sa 9/201:20 pmLIR - BOS
2 stops18h 36mUnited Airlines
Deal found 7/30$365
This JetBlue deal was found by Cheapflights users on 7/31. 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.
Sa 11/110:43 amBOS - LIR
Nonstop5h 37mJetBlue
Sa 11/154:43 pmLIR - BOS
Nonstop5h 17mJetBlue
Deal found 7/31$378

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 August 1, 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

Sa 8/30

6:05 am-11:12 am

1 stop7h 07m

San José Juan Santamaria Intl

So 9/7

12:19 pm-11:55 pm

1 stop9h 36m

$312

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Do 10/30

3:49 pm-9:04 am

1 stop19h 15m

San José Juan Santamaria Intl

So 11/2

4:08 am-10:03 pm

1 stop16h 55m

$323

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Do 8/28

6:05 am-11:12 am

1 stop7h 07m

San José Juan Santamaria Intl

Do 9/4

7:30 am-11:10 pm

2 stops13h 40m

$331

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Di 9/2

9:22 am-8:15 pm

2 stops12h 53m

San José Juan Santamaria Intl

Mi 9/17

6:00 am-9:46 pm

2 stops13h 46m

$335

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mo 9/1

6:25 am-11:55 am

1 stop7h 30m

San José Juan Santamaria Intl

Do 9/11

1:00 pm-11:59 pm

1 stop8h 59m

$337

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mo 11/3

10:15 am-1:50 pm

1 stop28h 35m

Liberia

Di 11/11

2:50 pm-7:12 pm

1 stop27h 22m

$338

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mo 9/15

5:35 am-12:00 pm

1 stop8h 25m

Liberia

Mi 9/17

1:25 pm-1:18 am

1 stop9h 53m

$343

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Di 8/19

5:25 am-12:26 pm

1 stop9h 01m

San José Juan Santamaria Intl

Mo 9/15

7:55 am-11:57 pm

2 stops14h 02m

$347

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mi 8/20

5:55 am-12:59 pm

1 stop9h 04m

Liberia

Mi 8/27

12:35 pm-7:35 am

2 stops17h 00m

$347

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sa 9/6

4:27 pm-12:10 pm

2 stops21h 43m

Liberia

Sa 9/20

1:20 pm-9:56 am

2 stops18h 36m

$365

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 25 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 August 1, 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 August 1, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta, and Copa 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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.
Copa Airlines
7.5
Good
1,493 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.1

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 ($87), American Airlines ($153), 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 Salvador flights
Boston to San José flights
Boston to Guatemala City flights
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Boston to Philip S.W.Goldson flights
Boston to San Pedro Sula flights
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Hartford to Philip S.W.Goldson flights
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Boston to Managua flights
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Albany to Liberia flights
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Hartford to San Pedro Sula flights
Albany to Managua 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 August 1, 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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