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 ($161), American Airlines ($170), and Southwest ($211).

What are the most popular airlines that fly from Boston to Costa Rica?

American Airlines, Avianca and JetBlue are the most popular airlines when flying from Boston to Costa Rica.

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

Thursday is generally a great day to depart. Flying on this day could help you save up to 58%.

How far in advance should I book a flight from Boston to Costa Rica?

Travelers have found it’s best to book a flight 18 days in advance to save up to 55% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 18 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Boston to Costa Rica 1-2 weeks in advance for as low as $450, or $660 for flights within the next 24 hours.

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

Our data shows that September tends to be the cheapest month to fly to Costa Rica from Boston. Users have commonly found prices around $542 for the month, but tickets can be as low as $254. Due to multiple factors, prepare for potentially higher prices in December.

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% 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.

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.

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.

$384+ Flights from Boston to Costa Rica

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

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.

Q: E

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Q: E

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

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

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.

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Cheap flight deals from Boston to Costa Rica

Most accurate provider	Expedia 1 star
Most trusted provider	Expedia 3 stars
Round-trip from	$296 (Kiwi.com)
One-way from	$161 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$594
Good round-trip deal	$542 or less
Good one-way deal	$311 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

Search Deals

Highest demand for flights based on searches. 13% potential increase in price ($86 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($31 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from Boston Logan Intl to Costa Rica.

Search Deals

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 April 25, 2025.

Sat 6/149:40 amBOS - SJO

2 stops11h 19mMultiple Airlines

Wed 6/1811:32 amSJO - BOS

1 stop10h 15mMultiple Airlines

Deal found 4/23

$296

Mon 6/25:42 pmBOS - SJO

1 stop18h 45mSpirit Airlines

Sun 6/811:32 amSJO - BOS

1 stop19h 37mSpirit Airlines

Deal found 4/24

$297

Tue 5/67:40 amBOS - SJO

1 stop12h 55mAmerican Airlines

Tue 5/136:03 amSJO - BOS

1 stop16h 16mAmerican Airlines

Deal found 4/25

$305

Thu 5/153:55 pmBOS - SJO

1 stop18h 25mCopa Airlines

Mon 5/195:52 pmSJO - BOS

1 stop18h 22mCopa Airlines

Deal found 4/25

$307

Tue 9/166:00 amBOS - SJO

1 stop7h 53mDelta

Fri 9/261:18 pmSJO - BOS

1 stop9h 42mDelta

Deal found 4/25

$322

Sat 5/39:30 amBOS - SJO

2 stops12h 07mUnited Airlines

Wed 5/147:55 amSJO - BOS

2 stops12h 32mUnited Airlines

Deal found 4/24

$377

Mon 5/124:50 pmBOS - SJO

1 stop8h 45mAvianca

Mon 5/193:00 pmSJO - BOS

1 stop14h 15mAvianca

Deal found 4/24

$393

Sun 6/16:30 amBOS - SJO

1 stop7h 25mJetBlue

Fri 6/62:10 pmSJO - BOS

1 stop8h 07mJetBlue

Deal found 4/24

$429

Thu 9/256:00 amBOS - LIR

1 stop8h 00mDelta

Sat 10/41:25 pmLIR - BOS

1 stop9h 35mDelta

Deal found 4/24

$453

Sat 5/177:21 pmBOS - LIR

2 stops18h 24mAmerican Airlines

Sat 6/72:25 pmLIR - BOS

2 stops15h 59mAmerican Airlines

Deal found 4/25

$457

Sun 5/115:30 amBOS - LIR

2 stops10h 53mUnited Airlines

Sat 5/173:25 pmLIR - BOS

2 stops17h 13mUnited Airlines

Deal found 4/23

$482

Sun 6/810:30 pmBOS - LIR

2 stops16h 40mSouthwest

Sun 6/1512:35 pmLIR - BOS

1 stop9h 55mSouthwest

Deal found 4/24

$494

Best flights from Boston to Costa Rica
Discover carefully curated flight deals from Boston to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 25, 2025.

Sat 6/149:40 amBOS - SJO

2 stops11h 19mMultiple Airlines

Wed 6/1811:32 amSJO - BOS

1 stop10h 15mMultiple Airlines

Deal found 4/23

$296

Mon 6/25:42 pmBOS - SJO

1 stop18h 45mSpirit Airlines

Sun 6/811:32 amSJO - BOS

1 stop19h 37mSpirit Airlines

Deal found 4/24

$297

Tue 5/67:40 amBOS - SJO

1 stop12h 55mAmerican Airlines

Tue 5/136:03 amSJO - BOS

1 stop16h 16mAmerican Airlines

Deal found 4/25

$305

Thu 5/153:55 pmBOS - SJO

1 stop18h 25mCopa Airlines

Mon 5/195:52 pmSJO - BOS

1 stop18h 22mCopa Airlines

Deal found 4/25

$307

Tue 9/166:00 amBOS - SJO

1 stop7h 53mDelta

Fri 9/261:18 pmSJO - BOS

1 stop9h 42mDelta

Deal found 4/25

$322

Mon 5/124:50 pmBOS - SJO

1 stop8h 45mAvianca

Mon 5/193:00 pmSJO - BOS

1 stop14h 15mAvianca

Deal found 4/24

$393

Wed 6/412:29 pmBOS - SJO

2 stops23h 42mUnited Airlines

Wed 6/115:30 amSJO - BOS

2 stops27h 46mUnited Airlines

Deal found 4/24

$426

Sun 6/16:30 amBOS - SJO

1 stop7h 25mJetBlue

Fri 6/62:10 pmSJO - BOS

1 stop8h 07mJetBlue

Deal found 4/24

$429

Sun 6/810:30 pmBOS - LIR

2 stops16h 40mSouthwest

Sun 6/1512:35 pmLIR - BOS

1 stop9h 55mSouthwest

Deal found 4/24

$494

Sat 5/176:00 amBOS - LIR

3 stops26h 20mAlaska Airlines

Sat 6/711:20 amLIR - BOS

2 stops16h 50mAlaska Airlines

Deal found 4/25

$729

Mon 6/25:10 amBOS - LIR

1 stop8h 35mAmerican Airlines

Mon 6/912:35 pmLIR - BOS

1 stop19h 22mAmerican Airlines

Deal found 4/25

$441

Sat 5/177:35 amBOS - LIR

1 stop7h 40mDelta

Sat 5/241:05 pmLIR - BOS

1 stop10h 12mDelta

Deal found 4/24

$453

Last-minute flights from Boston to Costa Rica
Discover last-minute flight deals from Boston to Costa Rica. Data last updated April 25, 2025 and is based on user searches.

Mon 4/287:08 amBOS - LIR

Nonstop5h 34mJetBlue

Wed 4/302:10 pmLIR - BOS

1 stop8h 09mJetBlue

Deal found 4/25

$728

Wed 4/306:30 amBOS - SJO

1 stop7h 25mJetBlue

Wed 4/302:10 pmSJO - BOS

1 stop8h 09mJetBlue

Deal found 4/23

$689

Wed 4/305:40 amBOS - SJO

1 stop8h 15mDelta

Sat 5/102:30 pmSJO - BOS

1 stop8h 47mDelta

Deal found 4/24

$707

Fri 5/28:47 amBOS - SJO

1 stop9h 35mCopa Airlines

Sun 5/114:10 amSJO - BOS

1 stop8h 04mCopa Airlines

Deal found 4/25

$307

Fri 5/28:35 pmBOS - SJO

1 stop16h 43mSpirit Airlines

Thu 5/812:28 pmSJO - BOS

1 stop9h 01mSpirit Airlines

Deal found 4/24

$350

Fri 5/27:08 amBOS - LIR

1 stop8h 08mAmerican Airlines

Thu 5/812:20 pmLIR - BOS

1 stop8h 22mAmerican Airlines

Deal found 4/24

$504

Fri 5/24:50 pmBOS - SJO

2 stops32h 40mAvianca

Sun 5/114:50 pmSJO - BOS

2 stops20h 05mAvianca

Deal found 4/25

$643

Fri 5/25:06 amBOS - LIR

3 stops32h 54mMultiple Airlines

Thu 5/86:50 amLIR - BOS

2 stops14h 39mMultiple Airlines

Deal found 4/24

$670

Sat 5/32:12 pmBOS - SJO

1 stop9h 46mAmerican Airlines

Wed 5/146:03 amSJO - BOS

1 stop7h 59mAmerican Airlines

Deal found 4/24

$325

Sat 5/39:30 amBOS - SJO

2 stops12h 07mUnited Airlines

Wed 5/147:55 amSJO - BOS

2 stops12h 32mUnited Airlines

Deal found 4/24

$377

Sun 5/44:50 pmBOS - SJO

1 stop17h 50mMultiple Airlines

Sat 5/1012:28 pmSJO - BOS

1 stop9h 01mMultiple Airlines

Deal found 4/24

$358

Sun 5/45:45 amBOS - SJO

2 stops15h 55mSouthwest

Sat 5/108:45 amSJO - BOS

2 stops11h 00mSouthwest

Deal found 4/24

$512

One-way flights from Boston to Costa Rica
Search for one-way flight options from Boston to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 25, 2025.

Sun 6/153:21 pmBOS - SJO

3 stops21h 56mSpirit Airlines

Deal found 4/24

$161

Wed 4/308:05 amBOS - SJO

2 stops12h 19mAmerican Airlines

Deal found 4/23

$170

Sun 6/222:42 pmBOS - SJO

1 stop26h 43mMultiple Airlines

Deal found 4/24

$184

Wed 6/255:00 amBOS - LIR

2 stops10h 10mSouthwest

Deal found 4/25

$211

Tue 5/275:40 amBOS - LIR

1 stop8h 20mDelta

Deal found 4/25

$221

Fri 5/2312:15 pmBOS - LIR

1 stop25h 45mAir Canada

Deal found 4/25

$224

Sun 5/257:21 pmBOS - LIR

2 stops17h 59mAmerican Airlines

Deal found 4/25

$226

Wed 4/304:50 pmBOS - SJO

2 stops18h 30mAvianca

Deal found 4/24

$230

Wed 5/217:29 amBOS - LIR

1 stop7h 36mJetBlue

Deal found 4/23

$238

Mon 5/268:45 amBOS - LIR

2 stops29h 39mMultiple Airlines

Deal found 4/23

$252

Thu 6/123:16 pmBOS - SJO

2 stops33h 23mUnited Airlines

Deal found 4/24

$255

Sat 5/246:03 pmBOS - LIR

1 stop19h 50mUnited Airlines

Deal found 4/25

$266

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 6/14

9:40 am-6:59 pm

2 stops11h 19m

San José Juan Santamaria Intl

Wed 6/18

11:32 am-11:47 pm

1 stop10h 15m

$296

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 6/2

5:42 pm-10:27 am

1 stop18h 45m

San José Juan Santamaria Intl

Sun 6/8

11:32 am-9:09 am

1 stop19h 37m

$297

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 5/6

7:40 am-6:35 pm

1 stop12h 55m

San José Juan Santamaria Intl

Tue 5/13

6:03 am-12:19 am

1 stop16h 16m

$305

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 5/15

3:55 pm-8:20 am

1 stop18h 25m

San José Juan Santamaria Intl

Mon 5/19

5:52 pm-2:14 pm

1 stop18h 22m

$307

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 9/16

6:00 am-11:53 am

1 stop7h 53m

San José Juan Santamaria Intl

Fri 9/26

1:18 pm-1:00 am

1 stop9h 42m

$322

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 5/12

4:50 pm-11:35 pm

1 stop8h 45m

San José Juan Santamaria Intl

Mon 5/19

3:00 pm-7:15 am

1 stop14h 15m

$393

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 6/4

12:29 pm-10:11 am

2 stops23h 42m

San José Juan Santamaria Intl

Wed 6/11

5:30 am-11:16 am

2 stops27h 46m

$426

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sun 6/1

6:30 am-11:55 am

1 stop7h 25m

San José Juan Santamaria Intl

Fri 6/6

2:10 pm-12:17 am

1 stop8h 07m

$429

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sat 5/17

7:35 am-1:15 pm

1 stop7h 40m

Liberia

Sat 5/24

1:05 pm-1:17 am

1 stop10h 12m

$453

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sat 5/17

7:21 pm-11:45 am

2 stops18h 24m

Liberia

Sat 6/7

2:25 pm-8:24 am

2 stops15h 59m

$457

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 29 results

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% 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 $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?

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?

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.

Rainfall in Costa Rica by month

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Boston to Costa Rica, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,928 reviews

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,289 reviews

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,920 reviews

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Copa Airlines

7.6

Good

1,411 reviews

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,685 reviews

Alaska Airlines

8.0

Very good

9,928 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

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 ($161), American Airlines ($170), and Southwest ($211).
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

Alternative routes for Boston to Costa Rica

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Boston to San Salvador flights

Boston to Guatemala City flights

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Hartford to Liberia flights

Albany to San José flights

Boston to Managua flights

Hartford to Guatemala City flights

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Hartford to Panama City flights

Albany to Liberia flights

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Hartford to San Pedro Sula flights

Worcester to San José flights

Worcester to San Salvador flights

Hartford to Coxen Hole flights

Hartford to Managua flights

Albany to Guatemala City flights

Boston to Tegucigalpa flights

Albany to Managua flights

Worcester to Liberia flights

Worcester to Philip S.W.Goldson flights

New Bedford to Panama City flights

Top 10 airlines flying from Boston to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$237	Average$469	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$264	Average$543	FlexibilityNo cancel fee	On-time62%
Avianca	Cheapest$278	Average$521	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$296	Average$526	FlexibilityNo cancel fee	On-time70%
JetBlue	Cheapest$330	Average$557	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$352	Average$613	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$362	Average$526	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$379	Average$639	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$385	Average$605	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$466	Average$763	FlexibilityNo cancel fee	On-time63%

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$161+ 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 6/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boston to Costa Rica with Cheapflights

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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 April 25, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Boston to Costa Rica

Cheapest flights from Boston to Costa RicaExplore 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 April 25, 2025.

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 April 25, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Costa Rica that are best for you.

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.

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?

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 April 25, 2025.

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.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

Reviews of airlines servicing Costa Rica

Read through reviews of airlines operating flights from Boston to Costa Rica, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

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

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

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

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

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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 April 25, 2025.