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 ($118), Avianca ($133), and Copa Airlines ($156).

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 $541 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.

$359+ 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	$290 (Kiwi.com)
One-way from	$118 (Cheapflightsfares)
Popular in	December
Cheapest in	September
Average price	$455
Good round-trip deal	$548 or less
Good one-way deal	$271 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

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Highest demand for flights based on searches. 14% potential increase in price ($88 potential increase over avg. RT price).

Search Deals

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 May 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 May 1, 2025.

Tue 5/273:49 pmBOS - SJO

2 stops20h 38mSpirit Airlines

Fri 5/3011:32 amSJO - BOS

1 stop10h 15mSpirit Airlines

Deal found 4/30

$290

Mon 5/124:50 pmBOS - SJO

2 stops16h 50mMultiple Airlines

Wed 5/2811:32 amSJO - BOS

1 stop8h 18mMultiple Airlines

Deal found 4/30

$303

Sat 5/109:30 amBOS - SJO

2 stops12h 07mUnited Airlines

Sat 5/177:55 amSJO - BOS

1 stop13h 31mUnited Airlines

Deal found 4/30

$305

Thu 5/89:30 amBOS - SJO

2 stops11h 05mAmerican Airlines

Mon 5/126:03 amSJO - BOS

2 stops13h 50mAmerican Airlines

Deal found 4/30

$309

Thu 5/153:55 pmBOS - SJO

1 stop20h 04mCopa Airlines

Mon 5/198:46 amSJO - BOS

1 stop27h 28mCopa Airlines

Deal found 4/29

$332

Mon 5/54:50 pmBOS - SJO

1 stop8h 45mAvianca

Fri 5/164:45 pmSJO - BOS

1 stop12h 30mAvianca

Deal found 4/30

$386

Tue 5/277:00 pmBOS - LIR

2 stops17h 00mUnited Airlines

Tue 6/33:25 pmLIR - BOS

1 stop19h 02mUnited Airlines

Deal found 4/29

$391

Thu 7/179:06 pmBOS - LIR

2 stops16h 39mAmerican Airlines

Mon 7/212:25 pmLIR - BOS

1 stop8h 34mAmerican Airlines

Deal found 4/30

$395

Thu 7/316:00 amBOS - SJO

1 stop7h 40mJetBlue

Thu 8/712:55 pmSJO - BOS

1 stop8h 53mJetBlue

Deal found 4/30

$416

Fri 7/255:35 amBOS - LIR

1 stop8h 25mDelta

Thu 7/311:25 pmLIR - BOS

1 stop10h 14mDelta

Deal found 4/29

$453

Fri 5/1610:40 amBOS - LIR

1 stop27h 20mAir Canada

Sat 5/311:00 pmLIR - BOS

1 stop27h 13mAir Canada

Deal found 4/30

$473

Wed 5/145:12 amBOS - LIR

1 stop9h 53mJetBlue

Thu 5/292:10 pmLIR - BOS

1 stop8h 07mJetBlue

Deal found 4/30

$487

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 May 1, 2025.

Tue 5/273:49 pmBOS - SJO

2 stops20h 38mSpirit Airlines

Fri 5/3011:32 amSJO - BOS

1 stop10h 15mSpirit Airlines

Deal found 4/30

$290

Mon 5/124:50 pmBOS - SJO

2 stops16h 50mMultiple Airlines

Wed 5/2811:32 amSJO - BOS

1 stop8h 18mMultiple Airlines

Deal found 4/30

$303

Thu 5/153:55 pmBOS - SJO

1 stop20h 04mCopa Airlines

Mon 5/198:46 amSJO - BOS

1 stop27h 28mCopa Airlines

Deal found 4/29

$332

Thu 6/59:10 amBOS - SJO

2 stops12h 59mAmerican Airlines

Tue 6/176:10 amSJO - BOS

2 stops13h 39mAmerican Airlines

Deal found 4/30

$333

Tue 7/297:45 amBOS - SJO

1 stop16h 54mUnited Airlines

Wed 8/65:30 amSJO - BOS

1 stop16h 14mUnited Airlines

Deal found 4/30

$404

Thu 7/316:00 amBOS - SJO

1 stop7h 40mJetBlue

Thu 8/712:55 pmSJO - BOS

1 stop8h 53mJetBlue

Deal found 4/30

$416

Mon 6/24:50 pmBOS - SJO

1 stop8h 45mAvianca

Sat 6/74:20 pmSJO - BOS

2 stops20h 35mAvianca

Deal found 4/30

$418

Thu 9/256:00 amBOS - LIR

1 stop8h 00mDelta

Mon 10/61:25 pmLIR - BOS

1 stop9h 35mDelta

Deal found 4/30

$453

Fri 5/1610:40 amBOS - LIR

1 stop27h 20mAir Canada

Sat 5/311:00 pmLIR - BOS

1 stop27h 13mAir Canada

Deal found 4/30

$473

Fri 6/278:25 pmBOS - LIR

2 stops18h 40mSouthwest

Sat 7/511:50 amLIR - BOS

2 stops17h 55mSouthwest

Deal found 4/29

$549

Thu 9/257:45 amBOS - LIR

3 stops24h 35mAlaska Airlines

Mon 9/2911:20 amLIR - BOS

2 stops18h 40mAlaska Airlines

Deal found 4/30

$683

Wed 5/145:10 amBOS - LIR

1 stop10h 16mAmerican Airlines

Wed 5/212:26 pmLIR - BOS

1 stop7h 53mAmerican Airlines

Deal found 4/30

$391

Last-minute flights from Boston to Costa Rica
Discover last-minute flight deals from Boston to Costa Rica. Data last updated May 1, 2025 and is based on user searches.

Mon 5/54:50 pmBOS - SJO

1 stop8h 45mAvianca

Fri 5/164:45 pmSJO - BOS

1 stop12h 30mAvianca

Deal found 4/30

$386

Tue 5/67:52 pmBOS - SJO

2 stops16h 07mMultiple Airlines

Wed 5/1412:28 pmSJO - BOS

1 stop9h 01mMultiple Airlines

Deal found 4/30

$431

Wed 5/76:10 amBOS - SJO

1 stop7h 23mSpirit Airlines

Wed 5/1412:28 pmSJO - BOS

1 stop9h 01mSpirit Airlines

Deal found 4/30

$392

Wed 5/76:00 amBOS - LIR

1 stop7h 20mAmerican Airlines

Wed 5/1412:45 pmLIR - BOS

1 stop9h 34mAmerican Airlines

Deal found 4/30

$421

Wed 5/75:15 amBOS - LIR

1 stop8h 55mUnited Airlines

Wed 5/141:20 pmLIR - BOS

2 stops19h 18mUnited Airlines

Deal found 4/30

$425

Wed 5/75:40 amBOS - LIR

1 stop8h 20mDelta

Thu 5/151:25 pmLIR - BOS

1 stop9h 52mDelta

Deal found 4/30

$518

Wed 5/77:00 amBOS - SJO

2 stops18h 52mAlaska Airlines

Fri 5/91:12 amSJO - BOS

2 stops20h 47mAlaska Airlines

Deal found 4/29

$622

Wed 5/78:20 pmBOS - LIR

1 stop18h 04mMultiple Airlines

Fri 5/2310:15 amLIR - BOS

2 stops35h 32mMultiple Airlines

Deal found 4/30

$679

Wed 5/710:00 amBOS - LIR

3 stops22h 20mAlaska Airlines

Wed 5/2111:20 amLIR - BOS

2 stops16h 50mAlaska Airlines

Deal found 4/30

$756

Thu 5/89:30 amBOS - SJO

2 stops11h 05mAmerican Airlines

Mon 5/126:03 amSJO - BOS

2 stops13h 50mAmerican Airlines

Deal found 4/30

$309

Thu 5/87:10 amBOS - LIR

1 stop7h 55mJetBlue

Wed 5/212:10 pmLIR - BOS

1 stop8h 07mJetBlue

Deal found 4/30

$528

Sat 5/109:30 amBOS - SJO

2 stops12h 07mUnited Airlines

Sat 5/177:55 amSJO - BOS

1 stop13h 31mUnited Airlines

Deal found 4/30

$305

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 May 1, 2025.

Thu 6/125:36 pmBOS - SJO

1 stop19h 01mSpirit Airlines

Deal found 4/30

$118

Sun 5/114:50 pmBOS - SJO

1 stop8h 45mAvianca

Deal found 4/30

$133

Mon 8/44:05 pmBOS - SJO

1 stop17h 30mCopa Airlines

Deal found 4/30

$156

Sun 5/189:46 amBOS - SJO

1 stop14h 54mMultiple Airlines

Deal found 4/30

$161

Sun 7/135:15 amBOS - LIR

1 stop8h 20mSouthwest

Deal found 4/30

$180

Mon 8/45:55 amBOS - SJO

2 stops9h 25mAmerican Airlines

Deal found 4/30

$182

Fri 5/3010:40 amBOS - LIR

1 stop27h 20mAir Canada

Deal found 4/30

$219

Mon 6/25:12 amBOS - LIR

1 stop9h 53mJetBlue

Deal found 4/30

$224

Sun 5/115:12 amBOS - SJO

1 stop9h 37mJetBlue

Deal found 4/29

$225

Tue 7/17:24 pmBOS - LIR

2 stops18h 00mAmerican Airlines

Deal found 5/1

$226

Tue 5/275:42 pmBOS - LIR

2 stops21h 28mMultiple Airlines

Deal found 4/30

$237

Wed 6/255:25 pmBOS - LIR

1 stop22h 58mUnited Airlines

Deal found 4/30

$253

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

Tue 5/27

3:49 pm-10:27 am

2 stops20h 38m

San José Juan Santamaria Intl

Fri 5/30

11:32 am-11:47 pm

1 stop10h 15m

$290

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 5/12

4:50 pm-7:40 am

2 stops16h 50m

San José Juan Santamaria Intl

Wed 5/28

11:32 am-9:50 pm

1 stop8h 18m

$303

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 5/15

3:55 pm-9:59 am

1 stop20h 04m

San José Juan Santamaria Intl

Mon 5/19

8:46 am-2:14 pm

1 stop27h 28m

$332

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 6/5

9:10 am-8:09 pm

2 stops12h 59m

San José Juan Santamaria Intl

Tue 6/17

6:10 am-9:49 pm

2 stops13h 39m

$333

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Tue 5/27

7:00 pm-10:00 am

2 stops17h 00m

Liberia

Tue 6/3

3:25 pm-12:27 pm

1 stop19h 02m

$391

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Thu 7/17

9:06 pm-11:45 am

2 stops16h 39m

Liberia

Mon 7/21

2:25 pm-12:59 am

1 stop8h 34m

$395

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Tue 7/29

7:45 am-10:39 pm

1 stop16h 54m

San José Juan Santamaria Intl

Wed 8/6

5:30 am-11:44 pm

1 stop16h 14m

$404

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Thu 7/31

6:00 am-11:40 am

1 stop7h 40m

San José Juan Santamaria Intl

Thu 8/7

12:55 pm-11:48 pm

1 stop8h 53m

$416

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

Mon 6/2

4:50 pm-11:35 pm

1 stop8h 45m

San José Juan Santamaria Intl

Sat 6/7

4:20 pm-2:55 pm

2 stops20h 35m

$418

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

Fri 7/25

5:35 am-12:00 pm

1 stop8h 25m

Liberia

Thu 7/31

1:25 pm-1:39 am

1 stop10h 14m

$453

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

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

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

9,968 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,294 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,934 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Copa Airlines

7.5

Good

1,415 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,696 reviews

Alaska Airlines

8.0

Very good

9,968 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 ($118), Avianca ($133), and Copa Airlines ($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

Alternative routes for Boston to Costa Rica

Boston to San José flights

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Boston to Liberia flights

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Albany to San José flights

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Albany to Liberia flights

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Hartford to Managua flights

Worcester to San Salvador flights

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Worcester to Philip S.W.Goldson flights

Worcester to Liberia flights

Worcester to San José flights

New Bedford to Panama City flights

Boston to Tegucigalpa flights

Top 10 airlines flying from Boston to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$237	Average$466	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$264	Average$543	FlexibilityNo cancel fee	On-time62%
Avianca	Cheapest$285	Average$523	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$297	Average$531	FlexibilityNo cancel fee	On-time70%
JetBlue	Cheapest$327	Average$558	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$352	Average$611	FlexibilityNo cancel fee	On-timeN/A
Air Canada	Cheapest$362	Average$526	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$377	Average$637	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$385	Average$605	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$463	Average$745	FlexibilityNo cancel fee	On-time63%

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$118+ 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 May 1, 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 May 1, 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 May 1, 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 May 1, 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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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 May 1, 2025.