What airlines fly to Costa Rica?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Costa Rica from Boise according to our data. United Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 4 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Costa Rica?

United Airlines and Alaska Airlines are the most popular carriers operating from Boise Air Term. Gowen Fld to Costa Rica

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Costa Rica?

Prices for flights from Boise Air Term. Gowen Fld Airport to Costa Rica are refreshed on a daily basis.

How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Costa Rica?

As of October 2026, there are 4 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Costa Rica.

How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Costa Rica?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boise Air Term. Gowen Fld Airport to Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$269 Cheap Flights from Boise to Costa Rica in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boise to Costa Rica

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7:10 pm - 8:32 amBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

12h 22m1 stop San Francisco

9:40 am - 9:15 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

12h 35m1 stop San Francisco

$581United Airlines

Tue, Nov 3 - Tue, Nov 17

7:00 pm - 8:32 amBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

12h 32m1 stop San Francisco

9:40 am - 11:33 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

14h 53m1 stop San Francisco

$581United Airlines

Mon, Nov 2 - Tue, Nov 10

2:41 pm - 1:01 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

21h 20m2 stops Dallas/Fort Worth Miami

3:54 pm - 12:37 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

21h 43m2 stops Miami Chicago O'Hare Intl

$585American Airlines

Mon, Nov 2 - Tue, Nov 10

2:49 pm - 1:00 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

21h 11m2 stops Dallas/Fort Worth Miami

3:59 pm - 1:26 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

22h 27m2 stops Miami Phoenix Sky Harbor Intl

$585American Airlines

Wed, Dec 2 - Wed, Dec 16

12:42 pm - 12:35 pmBOI Boise Air Term. Gowen Fld-LIR Liberia

22h 53m2 stops Seattle/Tacoma Intl Minneapolis St Paul

3:25 pm - 6:33 pmLIR Liberia-BOI Boise Air Term. Gowen Fld

28h 08m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl

$603Delta

Tue, Feb 2 - Tue, Feb 9

3:22 pm - 12:35 pmBOI Boise Air Term. Gowen Fld-LIR Liberia

20h 13m1 stop Minneapolis St Paul

3:25 pm - 6:33 pmLIR Liberia-BOI Boise Air Term. Gowen Fld

28h 08m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl

$603Delta

Wed, Feb 3 - Tue, Feb 9

8:03 am - 11:25 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

14h 22m2 stops San Jose Los Angeles

1:45 am - 6:19 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

17h 34m1 stop Los Angeles

$615Alaska Airlines

Sun, Feb 7 - Tue, Feb 16

7:25 am - 11:25 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

15h 00m1 stop Los Angeles

1:45 am - 6:19 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

17h 34m1 stop Los Angeles

$616Alaska Airlines

Sun, Feb 7 - Tue, Feb 16

6:15 pm - 12:50 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

17h 35m2 stops Phoenix Sky Harbor Intl Denver Intl

12:30 pm - 11:50 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

12h 20m2 stops Denver Intl Las Vegas Harry Reid Intl

$684Southwest

Fri, Feb 26 - Sat, Mar 6

8:55 pm - 1:45 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

15h 50m2 stops Las Vegas Harry Reid Intl Orlando

12:30 pm - 9:55 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

10h 25m1 stop Denver Intl

$684Southwest

Fri, Feb 26 - Sat, Mar 6

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Alaska Airlines flights from Boise to Costa Rica

Our best Alaska Airlines deals on Boise to Costa Rica flight tickets

Alaska Airlines

Feb 7

BOI8:03 amBoise Air Term. Gowen Fld

14h 22m

2 stops

SJO11:25 pmSan José Juan Santamaria Intl

Feb 16

SJO1:45 amSan José Juan Santamaria Intl

17h 34m

1 stop

BOI6:19 pmBoise Air Term. Gowen Fld

$615

Alaska Airlines

Feb 7

BOI7:25 amBoise Air Term. Gowen Fld

15h 00m

1 stop

SJO11:25 pmSan José Juan Santamaria Intl

Feb 16

SJO1:45 amSan José Juan Santamaria Intl

17h 34m

1 stop

BOI6:19 pmBoise Air Term. Gowen Fld

$616

Alaska Airlines

Feb 7

BOI10:02 amBoise Air Term. Gowen Fld

12h 23m

2 stops

SJO11:25 pmSan José Juan Santamaria Intl

Feb 16

SJO1:45 amSan José Juan Santamaria Intl

23h 13m

2 stops

BOI11:58 pmBoise Air Term. Gowen Fld

$619

American Airlines flights from Boise to Costa Rica

Our best American Airlines deals on Boise to Costa Rica flight tickets

American Airlines

Jan 13

BOI7:00 amBoise Air Term. Gowen Fld

12h 59m

2 stops

SJO8:59 pmSan José Juan Santamaria Intl

Jan 24

SJO6:30 amSan José Juan Santamaria Intl

14h 36m

1 stop

BOI8:06 pmBoise Air Term. Gowen Fld

$590

American Airlines

Nov 10

BOI2:41 pmBoise Air Term. Gowen Fld

22h 05m

1 stop

SJO1:46 pmSan José Juan Santamaria Intl

Nov 16

SJO2:46 pmSan José Juan Santamaria Intl

24h 05m

1 stop

BOI1:51 pmBoise Air Term. Gowen Fld

$602

American Airlines

Nov 12

BOI2:41 pmBoise Air Term. Gowen Fld

22h 05m

1 stop

SJO1:46 pmSan José Juan Santamaria Intl

Nov 17

SJO2:46 pmSan José Juan Santamaria Intl

24h 05m

1 stop

BOI1:51 pmBoise Air Term. Gowen Fld

$604

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Tue 11/3

7:10 pm-8:32 am

1 stop12h 22m

San José Juan Santamaria Intl

Tue 11/17

9:40 am-9:15 pm

1 stop12h 35m

$581

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Mon 11/2

7:00 pm-8:32 am

1 stop12h 32m

San José Juan Santamaria Intl

Tue 11/10

9:40 am-11:33 pm

1 stop14h 53m

$581

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Mon 11/2

2:41 pm-1:01 pm

2 stops21h 20m

San José Juan Santamaria Intl

Tue 11/10

3:54 pm-12:37 pm

2 stops21h 43m

$585

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Wed 12/2

2:49 pm-1:00 pm

2 stops21h 11m

San José Juan Santamaria Intl

Wed 12/16

3:59 pm-1:26 pm

2 stops22h 27m

$585

BoiseLiberia

BOI Boise Air Term. Gowen Fld - LIR Liberia

BOILIR

Boise Air Term. Gowen Fld

Tue 2/2

12:42 pm-12:35 pm

2 stops22h 53m

Liberia

Tue 2/9

3:25 pm-6:33 pm

2 stops28h 08m

$603

BoiseLiberia

BOI Boise Air Term. Gowen Fld - LIR Liberia

BOILIR

Boise Air Term. Gowen Fld

Wed 2/3

3:22 pm-12:35 pm

1 stop20h 13m

Liberia

Tue 2/9

3:25 pm-6:33 pm

2 stops28h 08m

$603

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Sun 2/7

8:03 am-11:25 pm

2 stops14h 22m

San José Juan Santamaria Intl

Tue 2/16

1:45 am-6:19 pm

1 stop17h 34m

$615

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Sun 2/7

7:25 am-11:25 pm

1 stop15h 00m

San José Juan Santamaria Intl

Tue 2/16

1:45 am-6:19 pm

1 stop17h 34m

$616

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Fri 2/26

6:15 pm-12:50 pm

2 stops17h 35m

San José Juan Santamaria Intl

Sat 3/6

12:30 pm-11:50 pm

2 stops12h 20m

$684

BoiseSan José

BOI Boise Air Term. Gowen Fld - SJO San José Juan Santamaria Intl

BOISJO

Boise Air Term. Gowen Fld

Fri 2/26

8:55 pm-1:45 pm

2 stops15h 50m

San José Juan Santamaria Intl

Sat 3/6

12:30 pm-9:55 pm

1 stop10h 25m

$684

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Boise to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Boise is in April. Flight prices, which tend to average around $522, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in April, then August is your next best option. Flight prices from Boise to Costa Rica during August average around $523.

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

You are more likely to see cheaper flights to Costa Rica from Boise when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $661 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Boise for as low as $428 on momondo.

Can stopping save me money on Boise to Costa Rica flights?

You could potentially save up to 1% on your flight if you consider stops on a Boise to Costa Rica flight.

Cheap Boise to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Costa Rica

Best Price Found	$269
Fastest flight time	8h 19m
Direct flights	None

The best one-way flight to Costa Rica from Boise in the past 72 hours is $269. The best round-trip flight deal from Boise to Costa Rica found on momondo in the last 72 hours is $581.

The fastest flight from Boise to Costa Rica takes 8h 19m

There are no direct flights from Boise to Costa Rica. There are no popular flight routes from Boise to Costa Rica.

Search flight deals

Frequently asked questions about flying from Boise to Costa Rica

When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Costa Rica?
Prices for flights from Boise Air Term. Gowen Fld Airport to Costa Rica are refreshed on a daily basis.
How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Costa Rica?
As of October 2026, there are 4 operators available to choose from for flights from Boise Air Term. Gowen Fld Airport to Costa Rica.
How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Costa Rica?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boise Air Term. Gowen Fld Airport to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The required travel and health documents for your Costa Rica trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Costa Rica. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Boise to Costa Rica

Compare and see reviews for airlines that fly from Boise to Costa Rica with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $353	Free Cancellation	Rating 7.3 10,405 reviews	Search United Airlines flights
American Airlines	PriceFrom $404	Free Cancellation	Rating 7.0 12,188 reviews	Search American Airlines flights
Southwest	PriceFrom $454	Free Cancellation	Rating 7.9 4,210 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $485	Free Cancellation	Rating 7.9 13,109 reviews	Search Alaska Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Costa Rica?

Finding the right flight to Costa Rica from Boise is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Costa Rica quick and easy, saving you time and money.

Can I find flights from Boise to Costa Rica with flexible booking policies on momondo?

Flights from Boise to Costa Rica with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Boise to Costa Rica?

Once all potential Boise to Costa Rica flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boise to Costa Rica right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Boise to Costa Rica flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Costa Rica

Flights to San Joséfrom $158

Flights to Liberiafrom $311

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Cheap flights from Boise to Costa Rica from $269

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Costa Rica departing on 2/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Alaska Airlines flights from Boise to Costa Rica

Our best Alaska Airlines deals on Boise to Costa Rica flight tickets

American Airlines flights from Boise to Costa Rica

Our best American Airlines deals on Boise to Costa Rica flight tickets

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

See travel insights to Costa Rica from

How to get the cheapest flight ticket from Boise to Costa Rica

What is the cheapest month to fly to Costa Rica?

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

Can stopping save me money on Boise to Costa Rica flights?

What is the cheapest airline that flies from Boise Air Term. Gowen Fld to Costa Rica?

What airlines fly to Costa Rica?

Cheap Boise to Costa Rica flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Boise to Costa Rica

Best airlines flying from Boise to Costa Rica

Compare and see reviews for airlines that fly from Boise to Costa Rica with momondo

Why use momondo?

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

Popular cities in Costa Rica

Popular flights according to clicks in the last 7 days on momondo

Boise flight routes

According to popular flight searches on momondo this year

Costa Rica flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Costa Rica

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Costa Rica

List of cabin classes available on flights landing in Costa Rica. Availability may vary depending on flight origin and airline.

Complete your trip to Costa Rica

Explore popular destinations other users love

According to popular flight searches on momondo this year