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 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 Idaho to Costa Rica?

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

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 11h 53m on average. On the other hand, flying from Idaho Falls to San José takes 16h 45m 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.

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 4 as of August 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.

$231 Cheap Flights from Idaho to Costa Rica in 2026

Discover deals from 900+ travel sites with momondo.

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.

6:00 am - 8:16 pmGEG Spokane-SJO San José Juan Santamaria Intl

12h 16m1 stop Dallas/Fort Worth

8:00 am - 11:11 pmSJO San José Juan Santamaria Intl-GEG Spokane

17h 11m2 stops Miami Phoenix Sky Harbor Intl

$449American Airlines

Mon, Feb 1 - Tue, Feb 9

6:00 am - 8:16 pmGEG Spokane-SJO San José Juan Santamaria Intl

12h 16m1 stop Dallas/Fort Worth

7:16 am - 7:42 pmSJO San José Juan Santamaria Intl-GEG Spokane

14h 26m1 stop Dallas/Fort Worth

$503American Airlines

Mon, Feb 1 - Tue, Feb 9

8:18 am - 11:15 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

13h 57m2 stops Los Angeles Guatemala City La Aurora

5:35 am - 10:55 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

18h 20m2 stops Guatemala City La Aurora Los Angeles

$508Multiple Airlines

Sat, Feb 13 - Sun, Feb 21

7:00 am - 11:15 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

15h 15m2 stops Los Angeles Guatemala City La Aurora

5:35 am - 10:58 pmSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

18h 23m2 stops Guatemala City La Aurora Los Angeles

$508Multiple Airlines

Wed, Nov 4 - Wed, Nov 11

8:30 pm - 12:20 pmBOI Boise Air Term. Gowen Fld-SJO San José Juan Santamaria Intl

14h 50m2 stops Las Vegas Harry Reid Intl Houston Hobby

2:10 pm - 9:50 amSJO San José Juan Santamaria Intl-BOI Boise Air Term. Gowen Fld

20h 40m2 stops Houston Hobby Phoenix Sky Harbor Intl

$513Southwest

Mon, Nov 2 - Sun, Nov 22

1:05 pm - 7:15 amGEG Spokane-SJO San José Juan Santamaria Intl

17h 10m1 stop San Francisco

8:45 am - 10:16 pmSJO San José Juan Santamaria Intl-GEG Spokane

14h 31m1 stop San Francisco

$520United Airlines

Thu, Oct 8 - Thu, Oct 15

4:10 pm - 11:25 amGEG Spokane-SJO San José Juan Santamaria Intl

17h 15m2 stops Denver Intl Houston George Bush Intcntl

9:40 am - 6:41 pmSJO San José Juan Santamaria Intl-GEG Spokane

11h 01m1 stop San Francisco

$520United Airlines

Wed, Nov 11 - Wed, Nov 18

5:00 am - 7:40 pmGEG Spokane-SJO San José Juan Santamaria Intl

13h 40m2 stops Las Vegas Harry Reid Intl Houston Hobby

1:30 pm - 12:35 amSJO San José Juan Santamaria Intl-GEG Spokane

12h 05m2 stops Houston Hobby Las Vegas Harry Reid Intl

$525Southwest

Thu, Oct 8 - Thu, Oct 15

10:02 am - 8:30 pmBOI Boise Air Term. Gowen Fld-LIR Liberia

9h 28m1 stop San Francisco

6:23 pm - 9:42 pmLIR Liberia-BOI Boise Air Term. Gowen Fld

28h 19m1 stop San Francisco

$533Alaska Airlines

Sat, Jan 16 - Sat, Jan 23

6:31 pm - 8:31 pmBOI Boise Air Term. Gowen Fld-LIR Liberia

25h 00m1 stop Los Angeles

6:23 pm - 6:20 pmLIR Liberia-BOI Boise Air Term. Gowen Fld

24h 57m2 stops San Francisco Seattle/Tacoma Intl

$538Alaska Airlines

Sat, Jan 16 - Sat, Jan 23

Cheap last minute flights

Enter your travel dates to find the best prices.

1:37 pm - 12:21 pmGEG Spokane-SJO San José Juan Santamaria Intl

21h 44m2 stops Denver Intl Houston George Bush Intcntl

8:45 am - 10:41 pmSJO San José Juan Santamaria Intl-GEG Spokane

14h 56m1 stop San Francisco

$748United Airlines

Mon, Aug 31 - Fri, Sep 11

3:54 pm - 12:21 pmGEG Spokane-SJO San José Juan Santamaria Intl

19h 27m2 stops Denver Intl Houston George Bush Intcntl

8:45 am - 10:41 pmSJO San José Juan Santamaria Intl-GEG Spokane

14h 56m1 stop San Francisco

$748United Airlines

Tue, Sep 1 - Fri, Sep 11

6:16 am - 10:03 pmGEG Spokane-SJO San José Juan Santamaria Intl

38h 47m2 stops Los Angeles Mexico City Benito Juarez

12:40 pm - 10:38 pmSJO San José Juan Santamaria Intl-GEG Spokane

34h 58m3 stops Panama City Tocumen Intl San Salvador El Salvador Intl Los Angeles

$789Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

6:16 am - 10:03 pmGEG Spokane-SJO San José Juan Santamaria Intl

38h 47m2 stops Los Angeles Mexico City Benito Juarez

9:40 am - 10:38 pmSJO San José Juan Santamaria Intl-GEG Spokane

37h 58m2 stops San Salvador El Salvador Intl Los Angeles

$789Multiple Airlines

Tue, Sep 1 - Wed, Sep 9

1:04 pm - 7:15 amGEG Spokane-SJO San José Juan Santamaria Intl

17h 11m1 stop San Francisco

8:45 am - 10:41 pmSJO San José Juan Santamaria Intl-GEG Spokane

14h 56m1 stop San Francisco

$793United Airlines

Sat, Aug 29 - Fri, Sep 11

4:16 pm - 11:49 amGEG Spokane-SJO San José Juan Santamaria Intl

18h 33m2 stops Los Angeles Atlanta Hartsfield-Jackson

1:19 pm - 3:39 pmSJO San José Juan Santamaria Intl-GEG Spokane

27h 20m2 stops Atlanta Hartsfield-Jackson Los Angeles

$858Delta

Sat, Aug 29 - Mon, Sep 14

5:40 am - 11:29 amGEG Spokane-LIR Liberia

28h 49m2 stops Dallas/Fort Worth Miami

2:47 pm - 1:26 pmLIR Liberia-GEG Spokane

23h 39m2 stops Miami Chicago O'Hare Intl

$861American Airlines

Tue, Sep 1 - Sat, Sep 12

2:37 pm - 1:52 pmGEG Spokane-SJO San José Juan Santamaria Intl

22h 15m2 stops Chicago O'Hare Intl Dallas/Fort Worth

2:56 pm - 11:54 amSJO San José Juan Santamaria Intl-GEG Spokane

21h 58m2 stops Miami Dallas/Fort Worth

$930American Airlines

Tue, Sep 1 - Mon, Sep 7

7:24 pm - 7:52 pmGEG Spokane-LIR Liberia

71h 28m3 stops Portland San Francisco Los Angeles

8:40 am - 9:48 pmLIR Liberia-GEG Spokane

14h 08m2 stops Los Angeles Seattle/Tacoma Intl

$1,455Alaska Airlines

Tue, Sep 1 - Sat, Sep 12

4:21 pm - 7:49 pmGEG Spokane-SJO San José Juan Santamaria Intl

26h 28m1 stop Los Angeles

7:19 am - 10:38 pmSJO San José Juan Santamaria Intl-GEG Spokane

16h 19m1 stop Los Angeles

$1,719Alaska Airlines

Fri, Aug 28 - Sun, Aug 30

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American Airlines flights from Idaho to Costa Rica

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

American Airlines

Feb 1

GEG6:00 amSpokane

12h 16m

1 stop

SJO8:16 pmSan José Juan Santamaria Intl

Feb 9

SJO8:00 amSan José Juan Santamaria Intl

17h 11m

2 stops

GEG11:11 pmSpokane

$449

American Airlines

Feb 1

GEG6:00 amSpokane

12h 16m

1 stop

SJO8:16 pmSan José Juan Santamaria Intl

Feb 9

SJO7:16 amSan José Juan Santamaria Intl

14h 26m

1 stop

GEG7:42 pmSpokane

$503

American Airlines

Feb 1

GEG3:05 pmSpokane

20h 41m

2 stops

SJO1:46 pmSan José Juan Santamaria Intl

Feb 9

SJO6:00 amSan José Juan Santamaria Intl

19h 11m

2 stops

GEG11:11 pmSpokane

$508

United Airlines flights from Idaho to Costa Rica

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

United Airlines

Nov 4

BOI7:10 pmBoise Air Term. Gowen Fld

12h 22m

1 stop

SJO8:32 amSan José Juan Santamaria Intl

Nov 11

SJO9:40 amSan José Juan Santamaria Intl

14h 53m

1 stop

BOI11:33 pmBoise Air Term. Gowen Fld

$520

United Airlines

Dec 7

JAC4:29 pmJackson Hole

19h 53m

2 stops

SJO1:22 pmSan José Juan Santamaria Intl

Dec 23

SJO7:30 amSan José Juan Santamaria Intl

8h 46m

1 stop

JAC3:16 pmJackson Hole

$525

United Airlines

Feb 17

BOI4:05 pmBoise Air Term. Gowen Fld

15h 27m

1 stop

SJO8:32 amSan José Juan Santamaria Intl

Feb 24

SJO9:40 amSan José Juan Santamaria Intl

10h 36m

1 stop

BOI7:16 pmBoise Air Term. Gowen Fld

$531

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SpokaneSan José

GEG Spokane - SJO San José Juan Santamaria Intl

GEGSJO

Spokane

Mon 2/1

6:00 am-8:16 pm

1 stop12h 16m

San José Juan Santamaria Intl

Tue 2/9

8:00 am-11:11 pm

2 stops17h 11m

$449

SpokaneSan José

GEG Spokane - SJO San José Juan Santamaria Intl

GEGSJO

Spokane

Mon 2/1

6:00 am-8:16 pm

1 stop12h 16m

San José Juan Santamaria Intl

Tue 2/9

7:16 am-7:42 pm

1 stop14h 26m

$503

BoiseSan José

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

BOISJO

Boise Air Term. Gowen Fld

Sat 2/13

8:18 am-11:15 pm

2 stops13h 57m

San José Juan Santamaria Intl

Sun 2/21

5:35 am-10:55 pm

2 stops18h 20m

$508

BoiseSan José

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

BOISJO

Boise Air Term. Gowen Fld

Wed 11/4

7:00 am-11:15 pm

2 stops15h 15m

San José Juan Santamaria Intl

Wed 11/11

5:35 am-10:58 pm

2 stops18h 23m

$508

BoiseSan José

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

BOISJO

Boise Air Term. Gowen Fld

Mon 11/2

8:30 pm-12:20 pm

2 stops14h 50m

San José Juan Santamaria Intl

Sun 11/22

2:10 pm-9:50 am

2 stops20h 40m

$513

SpokaneSan José

GEG Spokane - SJO San José Juan Santamaria Intl

GEGSJO

Spokane

Thu 10/8

1:05 pm-7:15 am

1 stop17h 10m

San José Juan Santamaria Intl

Thu 10/15

8:45 am-10:16 pm

1 stop14h 31m

$520

SpokaneSan José

GEG Spokane - SJO San José Juan Santamaria Intl

GEGSJO

Spokane

Wed 11/11

4:10 pm-11:25 am

2 stops17h 15m

San José Juan Santamaria Intl

Wed 11/18

9:40 am-6:41 pm

1 stop11h 01m

$520

Quickest round-trip

SpokaneSan José

GEG Spokane - SJO San José Juan Santamaria Intl

GEGSJO

Spokane

Thu 10/8

5:00 am-7:40 pm

2 stops13h 40m

San José Juan Santamaria Intl

Thu 10/15

1:30 pm-12:35 am

2 stops12h 05m

$525

BoiseLiberia

BOI Boise Air Term. Gowen Fld - LIR Liberia

BOILIR

Boise Air Term. Gowen Fld

Sat 1/16

10:02 am-8:30 pm

1 stop9h 28m

Liberia

Sat 1/23

6:23 pm-9:42 pm

1 stop28h 19m

$533

BoiseLiberia

BOI Boise Air Term. Gowen Fld - LIR Liberia

BOILIR

Boise Air Term. Gowen Fld

Sat 1/16

6:31 pm-8:31 pm

1 stop25h 00m

Liberia

Sat 1/23

6:23 pm-6:20 pm

2 stops24h 57m

$538

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 $448, 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 September is your next best option. Flight prices from Idaho to Costa Rica during September average around $484.

How far in advance should I book a flight from Idaho 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 $616 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 $391 on momondo.

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

You could potentially save up to 26% 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

Best Price Found	$231
Fastest flight time	8h 10m
Direct flights	None

The best one-way flight to Costa Rica from Idaho in the past 72 hours is $231. The best round-trip flight deal from Idaho to Costa Rica found on momondo in the last 72 hours is $449.

The fastest flight from Idaho to Costa Rica takes 8h 10m

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

Search flight deals

Frequently asked questions about flying 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 4 as of August 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
American Airlines	PriceFrom $279	Free Cancellation	Rating 7.1 12,007 reviews	Search American Airlines flights
United Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 10,128 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $376	Free Cancellation	Rating 7.9 12,845 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $454	Free Cancellation	Rating 8.0 4,204 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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Complete your trip

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Popular cities in Costa Rica

Flights to San Joséfrom $279

Flights to Liberiafrom $304

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Flights to Tortuguero

Flights to Golfito

Flights to Tambor

Cheap flights from Idaho to Costa Rica from $231

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 2/21. 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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American Airlines flights from Idaho to Costa Rica

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

United Airlines flights from Idaho to Costa Rica

Our best United 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 from Idaho 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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Idaho to Costa Rica

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?

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