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 ($151), Air Canada ($187), and Copa Airlines ($201).

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 69% 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 $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.

$557+ 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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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	$247 (Cheapflightsfares)
One-way from	$151 (Mytrip)
Popular in	December
Cheapest in	September
Average price	$590
Good round-trip deal	$386 or less
Good one-way deal	$271 or less

Provider with most accurate pricing for Boston Logan Intl-Costa Rica flight deals.

Search Deals

Provider most trusted by Cheapflights users for Boston Logan Intl-Costa Rica flights.

Search Deals

From Boston Logan Intl to Costa Rica

Search Deals

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 ($30 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.

Search Deals

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 abril 16, 2025.

jue. 5/14:39 pmBOS - SJO

1 stop9h 11mSpirit Airlines

lun. 5/512:55 amSJO - BOS

1 stop8h 29mSpirit Airlines

Deal found 4/16

$305

mar. 8/196:00 amBOS - SJO

1 stop7h 48mDelta

jue. 9/41:08 pmSJO - BOS

1 stop9h 58mDelta

Deal found 4/15

$322

jue. 5/86:05 amBOS - SJO

1 stop14h 30mAmerican Airlines

lun. 5/126:03 amSJO - BOS

2 stops11h 16mAmerican Airlines

Deal found 4/16

$323

jue. 7/34:05 pmBOS - SJO

1 stop17h 30mCopa Airlines

vie. 7/115:52 pmSJO - BOS

1 stop18h 16mCopa Airlines

Deal found 4/16

$325

vie. 5/22:12 pmBOS - SJO

1 stop11h 38mMultiple Airlines

mié. 5/711:32 amSJO - BOS

1 stop11h 12mMultiple Airlines

Deal found 4/16

$329

mar. 6/245:30 amBOS - SJO

2 stops19h 09mUnited Airlines

mié. 7/25:30 amSJO - BOS

2 stops25h 56mUnited Airlines

Deal found 4/16

$416

mié. 8/136:03 pmBOS - LIR

2 stops17h 57mUnited Airlines

lun. 8/1811:05 amLIR - BOS

1 stop10h 39mUnited Airlines

Deal found 4/16

$453

jue. 5/18:00 pmBOS - LIR

2 stops17h 34mAmerican Airlines

jue. 5/812:45 pmLIR - BOS

1 stop8h 03mAmerican Airlines

Deal found 4/16

$457

lun. 8/116:00 amBOS - LIR

1 stop7h 41mDelta

mar. 8/191:04 pmLIR - BOS

1 stop10h 02mDelta

Deal found 4/16

$478

sáb. 5/105:12 amBOS - LIR

1 stop9h 33mJetBlue

mié. 5/212:10 pmLIR - BOS

1 stop8h 07mJetBlue

Deal found 4/15

$488

lun. 5/1212:15 pmBOS - LIR

1 stop26h 09mMultiple Airlines

jue. 5/2210:15 amLIR - BOS

2 stops11h 14mMultiple Airlines

Deal found 4/15

$559

lun. 7/149:55 pmBOS - LIR

2 stops17h 15mSouthwest

dom. 7/2011:50 amLIR - BOS

2 stops10h 30mSouthwest

Deal found 4/16

$595

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 abril 16, 2025.

mar. 5/276:10 amBOS - SJO

1 stop7h 23mSpirit Airlines

mar. 6/1012:28 pmSJO - BOS

1 stop9h 01mSpirit Airlines

Deal found 4/15

$247

mié. 5/77:00 amBOS - SJO

1 stop17h 17mAmerican Airlines

vie. 5/162:15 pmSJO - BOS

1 stop17h 40mAmerican Airlines

Deal found 4/15

$319

vie. 5/29:09 pmBOS - SJO

1 stop15h 15mMultiple Airlines

lun. 5/55:52 amSJO - BOS

2 stops23h 26mMultiple Airlines

Deal found 4/15

$329

mar. 5/68:47 amBOS - SJO

1 stop9h 35mCopa Airlines

sáb. 5/106:07 pmSJO - BOS

1 stop18h 07mCopa Airlines

Deal found 4/14

$348

lun. 5/126:00 amBOS - SJO

1 stop7h 38mUnited Airlines

lun. 5/197:55 amSJO - BOS

2 stops24h 43mUnited Airlines

Deal found 4/15

$413

lun. 6/24:50 pmBOS - SJO

1 stop8h 45mAvianca

sáb. 6/74:20 pmSJO - BOS

2 stops20h 35mAvianca

Deal found 4/16

$425

jue. 6/125:35 amBOS - LIR

1 stop8h 25mDelta

mié. 6/181:25 pmLIR - BOS

1 stop9h 56mDelta

Deal found 4/15

$453

lun. 6/96:30 amBOS - SJO

1 stop7h 25mJetBlue

mié. 6/182:05 pmSJO - BOS

1 stop8h 22mJetBlue

Deal found 4/15

$454

jue. 4/2410:50 amBOS - SJO

1 stop12h 15mAir Canada

mié. 4/306:15 amSJO - BOS

1 stop8h 37mAir Canada

Deal found 4/15

$455

sáb. 5/245:30 amBOS - LIR

1 stop7h 50mSouthwest

mié. 5/282:05 pmLIR - BOS

2 stops15h 45mSouthwest

Deal found 4/15

$494

lun. 6/96:55 pmBOS - LIR

2 stops43h 29mWestJet

vie. 6/131:25 pmLIR - BOS

2 stops26h 15mWestJet

Deal found 4/15

$737

vie. 5/308:40 amBOS - LIR

3 stops23h 40mAlaska Airlines

lun. 6/211:20 amLIR - BOS

2 stops34h 46mAlaska Airlines

Deal found 4/15

$744

Last-minute flights from Boston to Costa Rica
Discover last-minute flight deals from Boston to Costa Rica. Data last updated abril 16, 2025 and is based on user searches.

lun. 4/217:08 amBOS - LIR

Nonstop5h 34mJetBlue

lun. 4/281:54 pmLIR - BOS

1 stop8h 25mJetBlue

Deal found 4/16

$1,078

mié. 4/232:05 pmBOS - LIR

1 stop24h 56mMultiple Airlines

vie. 5/26:00 pmLIR - BOS

2 stops14h 22mMultiple Airlines

Deal found 4/16

$1,020

jue. 4/244:39 pmBOS - SJO

1 stop9h 11mSpirit Airlines

jue. 5/2912:28 pmSJO - BOS

1 stop9h 01mSpirit Airlines

Deal found 4/16

$326

jue. 4/248:15 amBOS - SJO

1 stop15h 49mAmerican Airlines

jue. 5/296:03 amSJO - BOS

2 stops13h 17mAmerican Airlines

Deal found 4/16

$411

jue. 4/248:30 pmBOS - LIR

2 stops17h 04mAmerican Airlines

mar. 4/2912:45 pmLIR - BOS

2 stops17h 58mAmerican Airlines

Deal found 4/16

$617

vie. 4/257:32 pmBOS - LIR

2 stops18h 21mUnited Airlines

vie. 5/23:25 pmLIR - BOS

1 stop19h 02mUnited Airlines

Deal found 4/16

$508

sáb. 4/2611:45 amBOS - SJO

1 stop11h 38mJetBlue

sáb. 5/32:10 pmSJO - BOS

1 stop14h 58mJetBlue

Deal found 4/16

$523

sáb. 4/266:00 amBOS - SJO

2 stops15h 37mUnited Airlines

sáb. 5/31:30 pmSJO - BOS

2 stops19h 08mUnited Airlines

Deal found 4/16

$539

sáb. 4/268:08 amBOS - LIR

Nonstop5h 42mDelta

vie. 5/21:02 pmLIR - BOS

1 stop10h 05mDelta

Deal found 4/16

$658

sáb. 4/265:20 pmBOS - SJO

2 stops32h 32mAlaska Airlines

vie. 5/21:12 amSJO - BOS

2 stops20h 47mAlaska Airlines

Deal found 4/16

$850

sáb. 4/267:00 amBOS - LIR

3 stops25h 20mAlaska Airlines

sáb. 5/34:52 pmLIR - BOS

2 stops23h 50mAlaska Airlines

Deal found 4/16

$872

sáb. 4/269:00 amBOS - SJO

2 stops22h 58mAvianca

sáb. 5/311:00 amSJO - BOS

3 stops25h 55mAvianca

Deal found 4/16

$1,031

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 abril 16, 2025.

vie. 5/163:49 pmBOS - SJO

2 stops20h 38mSpirit Airlines

Deal found 4/15

$151

jue. 4/246:00 amBOS - SJO

2 stops19h 50mMultiple Airlines

Deal found 4/16

$186

lun. 4/215:35 pmBOS - SJO

1 stop29h 30mAir Canada

Deal found 4/15

$187

mié. 4/238:28 amBOS - SJO

1 stop31h 26mCopa Airlines

Deal found 4/16

$201

jue. 6/129:10 amBOS - SJO

2 stops12h 59mAmerican Airlines

Deal found 4/15

$216

lun. 6/165:35 amBOS - LIR

1 stop8h 25mDelta

Deal found 4/15

$221

sáb. 6/146:36 pmBOS - LIR

2 stops19h 09mAmerican Airlines

Deal found 4/16

$226

vie. 6/137:00 pmBOS - LIR

1 stop19h 00mAir Canada

Deal found 4/15

$228

mar. 5/135:42 pmBOS - LIR

2 stops21h 28mMultiple Airlines

Deal found 4/15

$236

dom. 5/185:12 amBOS - LIR

1 stop9h 53mJetBlue

Deal found 4/15

$238

mié. 5/286:00 amBOS - LIR

2 stops26h 20mAlaska Airlines

Deal found 4/15

$242

jue. 6/267:45 amBOS - SJO

2 stops28h 26mUnited Airlines

Deal found 4/15

$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

jue. 5/1

4:39 pm-11:50 pm

1 stop9h 11m

San José Juan Santamaria Intl

lun. 5/5

12:55 am-11:24 am

1 stop8h 29m

$305

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mié. 6/11

9:51 am-8:09 pm

1 stop12h 18m

San José Juan Santamaria Intl

mié. 6/18

6:10 am-4:09 pm

1 stop7h 59m

$322

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

jue. 7/3

4:05 pm-7:35 am

1 stop17h 30m

San José Juan Santamaria Intl

vie. 7/11

5:52 pm-2:08 pm

1 stop18h 16m

$325

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

vie. 5/2

2:12 pm-11:50 pm

1 stop11h 38m

San José Juan Santamaria Intl

mié. 5/7

11:32 am-12:44 am

1 stop11h 12m

$329

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

mar. 6/24

5:30 am-10:39 pm

2 stops19h 09m

San José Juan Santamaria Intl

mié. 7/2

11:13 am-9:49 am

3 stops20h 36m

$416

BostonSan José

BOS - SJO

BOSSJO

Boston Logan Intl

lun. 5/26

4:50 pm-11:35 pm

1 stop8h 45m

San José Juan Santamaria Intl

mar. 6/24

2:40 pm-7:15 am

2 stops38h 35m

$432

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

vie. 5/2

5:15 am-12:10 pm

1 stop8h 55m

Liberia

mar. 5/6

3:25 pm-12:27 pm

1 stop19h 02m

$453

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

jue. 5/1

8:00 pm-11:34 am

2 stops17h 34m

Liberia

jue. 5/8

12:45 pm-10:48 pm

1 stop8h 03m

$457

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

dom. 6/22

5:35 am-12:00 pm

1 stop8h 25m

Liberia

sáb. 6/28

2:40 pm-1:21 am

1 stop8h 41m

$478

BostonLiberia

BOS - LIR

BOSLIR

Boston Logan Intl

sáb. 5/10

5:12 am-12:45 pm

1 stop9h 33m

Liberia

mar. 5/20

2:10 pm-12:17 am

1 stop8h 07m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

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 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

9,876 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

9,876 reviews

Alaska Airlines

8.0

Very good

9,876 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

4,282 reviews

Alaska Airlines

8.0

Very good

9,876 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

7,916 reviews

Alaska Airlines

8.0

Very good

9,876 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

1,408 reviews

Alaska Airlines

8.0

Very good

9,876 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

8,665 reviews

Alaska Airlines

8.0

Very good

9,876 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 ($151), Air Canada ($187), and Copa Airlines ($201).
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

Boston to Guatemala City flights

Boston to San Salvador flights

Boston to Panama City flights

Boston to Liberia flights

Boston to Philip S.W.Goldson flights

Boston to San Pedro Sula flights

Hartford to San José flights

Boston to Coxen Hole flights

Boston to Managua flights

Hartford to Liberia flights

Albany to San José flights

Hartford to Philip S.W.Goldson flights

Albany to Panama City flights

Hartford to San Salvador flights

Hartford to Panama City flights

Hartford to Guatemala City flights

Hartford to San Pedro Sula flights

Albany to Liberia flights

Albany to San Salvador flights

Hartford to Coxen Hole flights

Albany to Philip S.W.Goldson flights

Worcester to Philip S.W.Goldson flights

Worcester to San Salvador flights

Worcester to San José flights

Boston to Tegucigalpa flights

Hartford to Managua flights

Albany to Managua flights

Worcester to Liberia flights

New Bedford to Panama City flights

Albany to Guatemala City flights

Top 10 airlines flying from Boston to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Spirit Airlines	Cheapest$238	Average$469	FlexibilityNo cancel fee	On-time65%
Frontier	Cheapest$264	Average$543	FlexibilityNo cancel fee	On-time62%
Avianca	Cheapest$279	Average$518	FlexibilityNo cancel fee	On-time71%
Copa Airlines	Cheapest$296	Average$523	FlexibilityNo cancel fee	On-time70%
JetBlue	Cheapest$330	Average$558	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$641	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$385	Average$608	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$466	Average$765	FlexibilityNo cancel fee	On-time63%

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$151+ 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 5/16. 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 abril 16, 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 abril 16, 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 abril 16, 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 abril 16, 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?

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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 abril 16, 2025.