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 Idaho according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 5 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

How long is the flight from Idaho to Costa Rica?

Flight times vary depending on what airport in Idaho you fly out of and what airport in Costa Rica you fly into. For example, flying from Boise to San José takes 12h 12m on average. On the other hand, flying from Idaho Falls to San José takes 16h 17m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Idaho to Costa Rica?

United Airlines, Alaska Airlines, and American Airlines are the most popular carriers operating from Idaho to Costa Rica

When did momondo last update prices for flights from Idaho to Costa Rica?

Prices for flights from Idaho to Costa Rica refresh daily.

How many operators does momondo search for flights from Idaho to Costa Rica?

The number of operators available for flights from Idaho to Costa Rica is 5 as of February 2026.

How old do you have to be to fly from Idaho to Costa Rica?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Costa Rica.

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

The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$149 Cheap Flights from Idaho to Costa Rica in 2026

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Find the cheapest flights from Idaho to Costa Rica

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:05 pm - 7:15 am

BOI

SJO

12h 10m

1 stop

6:00 am - 10:05 pm

SJO

BOI

16h 05m

1 stop

$357United Airlines

Tue, May 26 - Sat, May 30

7:02 am - 7:32 am

GEG

SJO

23h 30m

1 stop

8:40 am - 9:03 pm

SJO

GEG

13h 23m

1 stop

$367United Airlines

Sun, Mar 8 - Fri, Mar 13

8:38 am - 11:15 pm

BOI

SJO

14h 37m

2 stops

5:45 am - 10:58 pm

SJO

BOI

17h 13m

2 stops

$373Multiple Airlines

Thu, May 14 - Tue, May 19

7:14 pm - 8:45 am

BOI

SJO

13h 31m

2 stops

5:45 am - 10:58 pm

SJO

BOI

17h 13m

2 stops

$375Multiple Airlines

Sat, May 2 - Sat, May 16

1:41 pm - 1:22 pm

BOI

SJO

23h 41m

1 stop

2:22 pm - 12:51 pm

SJO

BOI

22h 29m

2 stops

$381American Airlines

Tue, Apr 7 - Tue, Apr 14

6:33 pm - 9:25 am

BOI

SJO

14h 52m

2 stops

2:22 pm - 12:51 pm

SJO

BOI

22h 29m

2 stops

$394American Airlines

Mon, Mar 30 - Tue, Apr 7

6:14 pm - 11:45 pm

GEG

SJO

28h 31m

1 stop

12:53 am - 3:29 pm

SJO

GEG

15h 36m

1 stop

$406Alaska Airlines

Fri, May 1 - Sun, May 17

6:14 pm - 11:45 pm

GEG

SJO

28h 31m

1 stop

12:53 am - 11:06 pm

SJO

GEG

23h 13m

2 stops

$411Alaska Airlines

Fri, May 1 - Sun, May 17

6:00 am - 1:14 pm

GEG

SJO

30h 14m

2 stops

1:50 pm - 9:12 pm

SJO

GEG

32h 22m

2 stops

$431GOL

Tue, Mar 24 - Tue, Mar 31

6:00 am - 1:14 pm

GEG

SJO

30h 14m

2 stops

2:22 pm - 8:33 pm

SJO

GEG

31h 11m

2 stops

$435GOL

Tue, Mar 24 - Tue, Apr 7

United Airlines flights from Idaho to Costa Rica

Our best United Airlines deals on Idaho to Costa Rica flight tickets

United Airlines

May 26

BOI7:05 pmBoise Air Term. Gowen Fld

12h 10m

1 stop

SJO7:15 amSan José Juan Santamaria Intl

May 30

SJO6:00 amSan José Juan Santamaria Intl

16h 05m

1 stop

BOI10:05 pmBoise Air Term. Gowen Fld

$357

United Airlines

Mar 8

GEG7:02 amSpokane

23h 30m

1 stop

SJO7:32 amSan José Juan Santamaria Intl

Mar 13

SJO8:40 amSan José Juan Santamaria Intl

13h 23m

1 stop

GEG9:03 pmSpokane

$367

United Airlines

Apr 25

BOI7:03 pmBoise Air Term. Gowen Fld

12h 12m

1 stop

SJO7:15 amSan José Juan Santamaria Intl

May 1

SJO1:25 pmSan José Juan Santamaria Intl

20h 29m

2 stops

BOI9:54 amBoise Air Term. Gowen Fld

$374

American Airlines flights from Idaho to Costa Rica

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

American Airlines

Apr 7

BOI1:41 pmBoise Air Term. Gowen Fld

23h 41m

1 stop

SJO1:22 pmSan José Juan Santamaria Intl

Apr 14

SJO2:22 pmSan José Juan Santamaria Intl

22h 29m

2 stops

BOI12:51 pmBoise Air Term. Gowen Fld

$381

American Airlines

Mar 30

BOI6:33 pmBoise Air Term. Gowen Fld

14h 52m

2 stops

SJO9:25 amSan José Juan Santamaria Intl

Apr 7

SJO2:22 pmSan José Juan Santamaria Intl

22h 29m

2 stops

BOI12:51 pmBoise Air Term. Gowen Fld

$394

American Airlines

Mar 2

BOI6:33 pmBoise Air Term. Gowen Fld

18h 17m

2 stops

SJO1:50 pmSan José Juan Santamaria Intl

Mar 10

SJO2:20 pmSan José Juan Santamaria Intl

22h 28m

1 stop

BOI12:48 pmBoise Air Term. Gowen Fld

$399

Fly from

Fly to

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 5/26

7:05 pm-7:15 am

1 stop12h 10m

San José Juan Santamaria Intl

Sat 5/30

6:00 am-10:05 pm

1 stop16h 05m

$357

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sun 3/8

7:02 am-7:32 am

1 stop23h 30m

San José Juan Santamaria Intl

Fri 3/13

8:40 am-9:03 pm

1 stop13h 23m

$367

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 5/14

8:38 am-11:15 pm

2 stops14h 37m

San José Juan Santamaria Intl

Tue 5/19

5:45 am-10:58 pm

2 stops17h 13m

$373

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 5/2

7:14 pm-8:45 am

2 stops13h 31m

San José Juan Santamaria Intl

Sat 5/16

5:45 am-10:58 pm

2 stops17h 13m

$375

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Tue 4/7

1:41 pm-1:22 pm

1 stop23h 41m

San José Juan Santamaria Intl

Tue 4/14

2:22 pm-12:51 pm

2 stops22h 29m

$381

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Mon 3/30

6:33 pm-9:25 am

2 stops14h 52m

San José Juan Santamaria Intl

Tue 4/7

2:22 pm-12:51 pm

2 stops22h 29m

$394

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 5/1

6:14 pm-11:45 pm

1 stop28h 31m

San José Juan Santamaria Intl

Sun 5/17

12:53 am-3:29 pm

1 stop15h 36m

$406

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 5/1

6:14 pm-11:45 pm

1 stop28h 31m

San José Juan Santamaria Intl

Sun 5/17

12:53 am-11:06 pm

2 stops23h 13m

$411

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 3/24

6:00 am-1:14 pm

2 stops30h 14m

San José Juan Santamaria Intl

Tue 3/31

1:50 pm-9:12 pm

2 stops32h 22m

$431

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 3/24

6:00 am-1:14 pm

2 stops30h 14m

San José Juan Santamaria Intl

Tue 4/7

2:22 pm-8:33 pm

2 stops31h 11m

$435

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 Idaho 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

Other information

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Idaho is in January. Flight prices, which tend to average around $344, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in January, then October is your next best option. Flight prices from Idaho to Costa Rica during October average around $431.

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

You are more likely to see cheaper flights to Costa Rica from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $567 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Idaho for as low as $354 on momondo.

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

You could potentially save up to 36% on your flight if you consider stops on a Idaho to Costa Rica flight.

Cheap Idaho to Costa Rica flight deals and tips

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

Fastest flight time	9h 04m
Direct flights	None

The fastest flight from Idaho to Costa Rica takes 9h 04m

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

Search flight deals

When did momondo last update prices for flights from Idaho to Costa Rica?
Prices for flights from Idaho to Costa Rica refresh daily.
How many operators does momondo search for flights from Idaho to Costa Rica?
The number of operators available for flights from Idaho to Costa Rica is 5 as of February 2026.
How old do you have to be to fly from Idaho to Costa Rica?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Costa Rica

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $141	Free Cancellation	Rating 7.9 8,212 reviews	Search Delta flights
American Airlines	PriceFrom $297	Free Cancellation	Rating 7.2 11,313 reviews	Search American Airlines flights
United Airlines	PriceFrom $297	Free Cancellation	Rating 7.4 9,321 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $376	Free Cancellation	Rating 8.0 11,904 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $454	Free Cancellation	Rating 8.0 4,295 reviews	Search Southwest flights

Why use momondo?

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

It is quick and easy to find Idaho to Costa Rica flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Costa Rica that suits you.

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

Yes. momondo allows you to filter the results for Idaho to Costa Rica flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Idaho and Costa Rica by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

If you are simply researching potential flights to Costa Rica, momondo offers a useful price alert feature which will track prices for flights to Costa Rica from Idaho and alert you when they change.

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 $139

Flights to Liberiafrom $233

Flights to Limon

Flights to Tortuguero

Flights to Tamarindo

Flights to Golfito

Flights to Tambor

Flights to Buenos Aires, Puntarenas

Flights to Palmar Sur

Cheap flights from Idaho to Costa Rica from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Costa Rica departing on 3/16. 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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Our best United Airlines deals on Idaho to Costa Rica flight tickets

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

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

What is the cheapest month to fly to Costa Rica?

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

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

What is the cheapest airline that flies from Idaho to Costa Rica?

What airlines fly to Costa Rica?

How long is the flight from Idaho to Costa Rica?

Cheap Idaho to Costa Rica flight deals and tips

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

Fastest flight time

Direct flights

Best airlines flying from Idaho to Costa Rica

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

Why use momondo?

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

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

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

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

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

Idaho 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