Find flights
When to book
FAQs & Tips
Deals

Find cheap flights from Idaho to Costa Rica from $235

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Idaho to Costa Rica departing on 7/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/3
Wed 7/10

Search hundreds of travel sites at once for deals on flights to Costa Rica

In the last 7 days travelers have searched 41,909,192 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Good to know

Low season

September

High season

December

Cheapest flight

$235
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Boise to San José

FAQs for booking flights from Idaho to Costa Rica

  • How does KAYAK find such low prices on flights from Idaho to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Idaho to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Idaho to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Costa Rica from Idaho is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Idaho to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Costa Rica with an airline and back to Idaho with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Idaho to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Costa Rica from Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Book cheap flights from Idaho to Costa Rica

Recent round-trip flight deals

10/5Sat
2 stopsAmerican Airlines
28h 35mGEG-SJO
10/16Wed
2 stopsAmerican Airlines
24h 00mSJO-GEG
$371
10/29Tue
2 stopsAmerican Airlines
23h 52mJAC-SJO
11/3Sun
2 stopsAmerican Airlines
21h 29mSJO-JAC
$391
11/10Sun
1 stopUnited Airlines
10h 08mBOI-LIR
11/17Sun
1 stopUnited Airlines
47h 13mLIR-BOI
$432
11/1Fri
2 stopsUnited Airlines
42h 12mBOI-LIR
11/15Fri
2 stopsUnited Airlines
14h 32mLIR-BOI
$494
8/3Sat
1 stopDelta
22h 10mBOI-SJO
8/15Thu
2 stopsDelta
25h 04mSJO-BOI
$508
8/5Mon
2 stopsSpirit Airlines
40h 41mBOI-SJO
8/11Sun
2 stopsSpirit Airlines
40h 35mSJO-BOI
$590
6/30Sun
1 stopDelta
20h 30mGEG-SJO
7/7Sun
2 stopsDelta
20h 57mSJO-GEG
$618
8/3Sat
2 stopsSpirit Airlines
14h 19mBOI-SJO
8/14Wed
2 stopsSpirit Airlines
34h 27mSJO-BOI
$628
9/7Sat
1 stopAlaska Airlines
12h 30mBOI-SJO
9/14Sat
1 stopAlaska Airlines
14h 40mSJO-BOI
$725
9/12Thu
1 stopAlaska Airlines
23h 54mBOI-SJO
9/14Sat
1 stopAlaska Airlines
14h 40mSJO-BOI
$735

Search by stops

Search by airline

Search by price

Recent one-way flight deals

7/24Wed
2 stopsUnited Airlines
14h 58mBOI-SJO
$235
7/20Sat
2 stopsAmerican Airlines
36h 09mBOI-LIR
$248
7/21Sun
2 stopsAmerican Airlines
45h 16mBOI-LIR
$254
7/21Sun
2 stopsAmerican Airlines
21h 16mBOI-LIR
$261
7/23Tue
1 stopAmerican Airlines
21h 14mBOI-SJO
$266
7/23Tue
2 stopsAmerican Airlines
36h 22mBOI-SJO
$278
7/15Mon
2 stopsAmerican Airlines
54h 09mGEG-SJO
$286
6/22Sat
2 stopsCopa Airlines
14h 05mIDA-SJO
$291
7/21Sun
1 stopAlaska Airlines
13h 10mBOI-LIR
$306
6/22Sat
3 stopsAlaska Airlines
28h 09mIDA-SJO
$586

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Costa Rica

Last minute flight, train and bus deals

6/5Wed
multi-stopAmerican Airlines
20h 27mGEG-SJO
7/11Thu
multi-stopAmerican Airlines
24h 02mSJO-GEG
$561
6/5Wed
multi-stopAmerican Airlines
13h 42mGEG-SJO
7/11Thu
multi-stopAmerican Airlines
21h 43mSJO-GEG
$566
6/6Thu
multi-stopAmerican Airlines
19h 33mGEG-LIR
7/11Thu
multi-stopAmerican Airlines
31h 42mLIR-GEG
$641
6/6Thu
multi-stopAmerican Airlines
9h 08mGEG-SJO
6/13Thu
multi-stopAmerican Airlines
12h 43mSJO-GEG
$657
6/6Thu
multi-stopDelta
14h 13mGEG-SJO
6/13Thu
multi-stopDelta
15h 47mSJO-GEG
$662
6/7Fri
multi-stopAmerican Airlines
10h 49mBOI-SJO
6/12Wed
multi-stopAmerican Airlines
23h 17mSJO-BOI
$662
6/7Fri
multi-stopSpirit Airlines
39h 32mBOI-SJO
6/11Tue
multi-stopSpirit Airlines
43h 24mSJO-BOI
$806
6/6Thu
multi-stopUnited Airlines
9h 15mGEG-LIR
7/11Thu
multi-stopUnited Airlines
10h 09mLIR-GEG
$810
6/6Thu
multi-stopAlaska Airlines
12h 15mGEG-SJO
6/12Wed
multi-stopAlaska Airlines
24h 08mSJO-GEG
$1,071
6/6Thu
multi-stopAlaska Airlines
12h 15mGEG-SJO
6/12Wed
multi-stopAlaska Airlines
17h 46mSJO-GEG
$1,106

Search by stops

Search by airline

Search by price

Flights to Costa Rica

Return flight deals:

Costa Rica - Idaho

Cabin classes: