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 American Airlines ($152), Air Canada ($156), and Spirit Airlines ($163).

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 20 days in advance to save up to 61% 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 20 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 $465, or $658 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.

$409+ Flights from Boston to Costa Rica

Q: 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.

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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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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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	$325 (Kiwi.com)
One-way from	$152 (American Airlines)
Popular in	December
Cheapest in	September
Average price	$576
Good round-trip deal	$386 or less
Good one-way deal	$191 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 ($85 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($29 potential savings vs. average RT price).

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Average for round-trip flights in March 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 March 28, 2025.

Thu 5/14:39 pmBOS - SJO

1 stop9h 11mMultiple Airlines

Wed 5/78:46 amSJO - BOS

2 stops12h 43mMultiple Airlines

Deal found 3/27

$325

Wed 4/91:31 pmBOS - SJO

2 stops12h 19mSpirit Airlines

Sun 4/1312:55 amSJO - BOS

1 stop7h 32mSpirit Airlines

Deal found 3/28

$326

Fri 5/305:10 amBOS - SJO

1 stop15h 25mAmerican Airlines

Wed 6/46:03 amSJO - BOS

1 stop7h 59mAmerican Airlines

Deal found 3/27

$336

Sat 4/268:30 pmBOS - LIR

2 stops17h 04mAmerican Airlines

Fri 5/22:26 pmLIR - BOS

2 stops17h 05mAmerican Airlines

Deal found 3/27

$375

Thu 5/13:41 pmBOS - LIR

1 stop22h 29mUnited Airlines

Tue 5/63:25 pmLIR - BOS

1 stop19h 02mUnited Airlines

Deal found 3/27

$395

Fri 4/116:35 amBOS - LIR

1 stop9h 15mAir Canada

Wed 4/162:30 pmLIR - BOS

1 stop26h 41mAir Canada

Deal found 3/27

$401

Fri 3/287:15 amBOS - SJO

1 stop15h 40mUnited Airlines

Fri 4/47:55 amSJO - BOS

2 stops14h 04mUnited Airlines

Deal found 3/27

$407

Mon 4/77:08 amBOS - LIR

Nonstop5h 34mJetBlue

Mon 4/141:54 pmLIR - BOS

1 stop8h 25mJetBlue

Deal found 3/27

$422

Tue 12/22:36 pmBOS - SJO

1 stop18h 25mCopa Airlines

Thu 12/44:13 amSJO - BOS

1 stop13h 07mCopa Airlines

Deal found 3/27

$429

Mon 5/124:50 pmBOS - SJO

1 stop8h 45mAvianca

Thu 5/226:10 amSJO - BOS

2 stops30h 45mAvianca

Deal found 3/26

$430

Tue 4/810:50 amBOS - SJO

1 stop12h 15mAir Canada

Mon 4/147:55 amSJO - BOS

1 stop26h 16mAir Canada

Deal found 3/28

$451

Mon 6/306:25 amBOS - SJO

1 stop7h 30mJetBlue

Fri 7/1812:55 pmSJO - BOS

1 stop8h 53mJetBlue

Deal found 3/27

$468

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 March 28, 2025.

Thu 5/14:39 pmBOS - SJO

1 stop9h 11mMultiple Airlines

Wed 5/78:46 amSJO - BOS

2 stops12h 43mMultiple Airlines

Deal found 3/27

$325

Wed 4/91:31 pmBOS - SJO

2 stops12h 19mSpirit Airlines

Sun 4/1312:55 amSJO - BOS

1 stop7h 32mSpirit Airlines

Deal found 3/28

$326

Sat 4/265:31 amBOS - SJO

1 stop18h 27mAmerican Airlines

Fri 5/22:10 pmSJO - BOS

1 stop17h 21mAmerican Airlines

Deal found 3/27

$333

Thu 5/13:41 pmBOS - LIR

1 stop22h 29mUnited Airlines

Tue 5/63:25 pmLIR - BOS

1 stop19h 02mUnited Airlines

Deal found 3/27

$395

Thu 7/174:05 pmBOS - SJO

1 stop17h 30mCopa Airlines

Mon 7/284:10 amSJO - BOS

1 stop16h 17mCopa Airlines

Deal found 3/27

$400

Fri 4/116:35 amBOS - LIR

1 stop9h 15mAir Canada

Wed 4/162:30 pmLIR - BOS

1 stop26h 41mAir Canada

Deal found 3/27

$401

Mon 4/77:08 amBOS - LIR

Nonstop5h 34mJetBlue

Mon 4/141:54 pmLIR - BOS

1 stop8h 25mJetBlue

Deal found 3/27

$422

Mon 5/124:50 pmBOS - SJO

1 stop8h 45mAvianca

Thu 5/226:10 amSJO - BOS

2 stops30h 45mAvianca

Deal found 3/26

$430

Thu 7/106:00 amBOS - LIR

1 stop7h 40mDelta

Wed 7/231:05 pmLIR - BOS

1 stop10h 01mDelta

Deal found 3/27

$548

Sat 4/267:00 amBOS - LIR

3 stops25h 20mAlaska Airlines

Sat 5/34:52 pmLIR - BOS

2 stops23h 50mAlaska Airlines

Deal found 3/27

$663

Sun 6/225:15 amBOS - LIR

1 stop8h 20mSouthwest

Sat 6/2812:35 pmLIR - BOS

1 stop9h 05mSouthwest

Deal found 3/27

$686

Sat 4/268:30 pmBOS - LIR

2 stops17h 04mAmerican Airlines

Fri 5/22:26 pmLIR - BOS

2 stops17h 05mAmerican Airlines

Deal found 3/27

$375

Last-minute flights from Boston to Costa Rica
Discover last-minute flight deals from Boston to Costa Rica. Data last updated March 28, 2025 and is based on user searches.

Fri 3/287:15 amBOS - SJO

1 stop15h 40mUnited Airlines

Fri 4/47:55 amSJO - BOS

2 stops14h 04mUnited Airlines

Deal found 3/27

$407

Sat 3/298:55 amBOS - SJO

1 stop16h 35mAvianca

Wed 4/24:45 pmSJO - BOS

1 stop12h 30mAvianca

Deal found 3/28

$447

Wed 4/211:14 amBOS - SJO

1 stop14h 36mMultiple Airlines

Wed 4/912:23 pmSJO - BOS

2 stops28h 20mMultiple Airlines

Deal found 3/26

$341

Fri 4/49:00 amBOS - SJO

2 stops11h 24mAmerican Airlines

Mon 4/142:20 pmSJO - BOS

1 stop18h 03mAmerican Airlines

Deal found 3/27

$587

Sat 4/52:59 pmBOS - SJO

2 stops22h 22mSpirit Airlines

Sun 4/1312:55 amSJO - BOS

1 stop7h 32mSpirit Airlines

Deal found 3/27

$333

Sat 4/58:08 amBOS - LIR

Nonstop5h 42mDelta

Sat 4/121:15 pmLIR - BOS

Nonstop5h 23mDelta

Deal found 3/28

$452

Sat 4/59:00 amBOS - SJO

1 stop16h 30mAvianca

Mon 4/144:45 pmSJO - BOS

1 stop12h 30mAvianca

Deal found 3/27

$453

Sat 4/57:32 pmBOS - SJO

2 stops18h 54mUnited Airlines

Mon 4/147:15 amSJO - BOS

1 stop8h 13mUnited Airlines

Deal found 3/27

$520

Sun 4/65:30 amBOS - LIR

2 stops10h 53mUnited Airlines

Thu 4/103:25 pmLIR - BOS

1 stop19h 02mUnited Airlines

Deal found 3/27

$453

Sun 4/610:02 pmBOS - LIR

3 stops17h 08mMultiple Airlines

Thu 4/106:40 pmLIR - BOS

2 stops13h 47mMultiple Airlines

Deal found 3/27

$982

Mon 4/75:31 amBOS - LIR

1 stop9h 34mAmerican Airlines

Mon 4/1412:45 pmLIR - BOS

1 stop9h 40mAmerican Airlines

Deal found 3/28

$409

Mon 4/77:08 amBOS - LIR

Nonstop5h 34mJetBlue

Mon 4/141:54 pmLIR - BOS

1 stop8h 25mJetBlue

Deal found 3/27

$422

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 March 28, 2025.

Thu 6/121:08 pmBOS - SJO

1 stop9h 01mAmerican Airlines

Deal found 3/27

$152

Wed 4/163:40 pmBOS - LIR

1 stop22h 50mAir Canada

Deal found 3/26

$156

Fri 4/119:39 pmBOS - SJO

1 stop14h 45mSpirit Airlines

Deal found 3/27

$163

Wed 5/146:00 amBOS - LIR

2 stops9h 26mAmerican Airlines

Deal found 3/27

$166

Wed 4/167:08 amBOS - LIR

Nonstop5h 34mJetBlue

Deal found 3/26

$169

Wed 4/26:00 amBOS - SJO

2 stops38h 49mMultiple Airlines

Deal found 3/27

$178

Sat 6/146:00 amBOS - LIR

1 stop31h 53mUnited Airlines

Deal found 3/27

$233

Wed 4/167:48 pmBOS - LIR

3 stops45h 12mMultiple Airlines

Deal found 3/26

$276

Wed 7/168:50 amBOS - LIR

3 stops23h 30mAlaska Airlines

Deal found 3/27

$345

Sun 6/84:50 pmBOS - SJO

3 stops43h 15mAvianca

Deal found 3/27

$397

Thu 6/123:55 pmBOS - SJO

3 stops26h 52mCopa Airlines

Deal found 3/27

$958

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

Thu 5/1

4:39 pm-11:50 pm

1 stop9h 11m

San José Juan Santamaria Intl

Wed 5/7

8:46 am-11:29 pm

2 stops12h 43m

$325

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Wed 4/9

1:31 pm-11:50 pm

2 stops12h 19m

San José Juan Santamaria Intl

Sun 4/13

12:55 am-10:27 am

1 stop7h 32m

$326

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Sat 4/26

5:31 am-9:58 pm

1 stop18h 27m

San José Juan Santamaria Intl

Fri 5/2

2:10 pm-9:31 am

1 stop17h 21m

$333

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Sat 4/26

8:30 pm-11:34 am

2 stops17h 04m

Liberia

Fri 5/2

2:26 pm-9:31 am

2 stops17h 05m

$375

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Thu 5/1

3:41 pm-12:10 pm

1 stop22h 29m

Liberia

Tue 5/6

3:25 pm-12:27 pm

1 stop19h 02m

$395

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 7/17

4:05 pm-7:35 am

1 stop17h 30m

San José Juan Santamaria Intl

Mon 7/28

4:10 am-10:27 pm

1 stop16h 17m

$400

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Fri 4/11

6:35 am-1:50 pm

1 stop9h 15m

Liberia

Wed 4/16

2:30 pm-7:11 pm

1 stop26h 41m

$401

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Mon 4/7

7:08 am-10:42 am

Nonstop5h 34m

Liberia

Mon 4/14

1:54 pm-12:19 am

1 stop8h 25m

$422

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

Thu 5/22

6:10 am-2:55 pm

2 stops30h 45m

$430

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 5/13

5:30 am-7:37 pm

2 stops16h 07m

San José Juan Santamaria Intl

Thu 5/22

11:13 am-9:56 am

2 stops20h 43m

$441

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 30 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 Southwest, Alaska Airlines and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Southwest

8.1

Very good

4,274 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Alaska Airlines

8.0

Very good

9,798 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Delta

8.0

Very good

7,897 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

Copa Airlines

7.5

Good

1,395 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

United Airlines

7.4

Good

8,603 reviews

Southwest

8.1

Very good

4,274 reviews

Reviews

1 / 20

8.0

Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 American Airlines ($152), Air Canada ($156), and Spirit Airlines ($163).
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 Managua flights

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Hartford to Guatemala City flights

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Albany to Panama City flights

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Albany to San Salvador flights

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Boston to Tegucigalpa flights

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Worcester to Philip S.W.Goldson flights

Worcester to Liberia flights

Worcester to San Salvador flights

Worcester to San José 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$240	Average$468	FlexibilityNo cancel fee	On-time65%
Avianca	Cheapest$283	Average$518	FlexibilityNo cancel fee	On-time71%
Frontier	Cheapest$297	Average$548	FlexibilityNo cancel fee	On-time62%
Copa Airlines	Cheapest$299	Average$503	FlexibilityNo cancel fee	On-time70%
JetBlue	Cheapest$333	Average$549	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$353	Average$618	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$379	Average$551	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$385	Average$616	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$385	Average$650	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$466	Average$760	FlexibilityNo cancel fee	On-time63%

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$152+ 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 6/12. 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 March 28, 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 March 28, 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 March 28, 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 March 28, 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 Southwest, Alaska Airlines 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.

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

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Alternative routes for Boston to Costa Rica

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Top 10 airlines flying 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 March 28, 2025.