$166 Find Cheap Flights from Idaho to Costa Rica

1 adult
1 adult, Economy

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

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

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

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

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

Useful Info

Good to know

Low seasonSeptember
High seasonDecember
Cheapest flight$166
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 47% 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 from Idaho to Costa Rica 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 from Idaho to Costa Rica with an airline and back 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 from Idaho to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Costa Rica?

    Based on KAYAK data, the cheapest day to fly to Costa Rica is Sunday where round-trip tickets can be as cheap as $605. On the other hand, the most expensive day to fly is Friday, where round-trip prices are $765 on average.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally at night, when round-trip flights cost $581 on average. Morning departures are around 21% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is $723.

  • What is the cheapest month to fly from Idaho to Costa Rica?

    The cheapest month for flights from Idaho to Costa Rica is August, when tickets cost $542 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $862 and $820 respectively.

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

    To get a below average price on the flight from Idaho to Costa Rica, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

  • How long is the flight to Costa Rica?

    An average nonstop flight from Idaho to Costa Rica takes 17h 18m, covering a distance of 2928 miles. The shortest route is Boise (BOI) to Liberia (LIR) with an average flight time of 8h 43m.

  • What are the most popular destinations in Costa Rica?

    Based on KAYAK flight searches, the most popular destination is San José (55% of total searches to Costa Rica). The next most popular destination is Liberia (45%).

Book cheap flights from Idaho to Costa Rica

Recent round-trip flight deals

9/1Mon
1 stopAmerican Airlines
11h 15mBOI-SJO
9/22Mon
1 stopAmerican Airlines
14h 27mSJO-BOI
$316
9/1Mon
2 stopsAmerican Airlines
13h 15mBOI-SJO
9/22Mon
2 stopsAmerican Airlines
16h 14mSJO-BOI
$320
8/12Tue
1 stopAlaska Airlines
15h 12mBOI-SJO
8/18Mon
1 stopAlaska Airlines
13h 40mSJO-BOI
$371
8/12Tue
2 stopsAlaska Airlines
13h 30mBOI-SJO
8/18Mon
2 stopsAlaska Airlines
17h 21mSJO-BOI
$375
10/6Mon
2 stopsDelta
20h 55mBOI-LIR
10/14Tue
2 stopsDelta
20h 54mLIR-BOI
$387
10/8Wed
2 stopsDelta
20h 43mBOI-SJO
10/15Wed
2 stopsDelta
25h 14mSJO-BOI
$403
11/6Thu
2 stopsUnited Airlines
17h 20mGEG-SJO
11/13Thu
1 stopUnited Airlines
15h 49mSJO-GEG
$404
8/12Tue
1 stopUnited Airlines
12h 00mBOI-SJO
8/19Tue
1 stopUnited Airlines
14h 57mSJO-BOI
$418
8/14Thu
2 stopsSpirit Airlines
17h 06mBOI-SJO
8/21Thu
3 stopsSpirit Airlines
28h 53mSJO-BOI
$492
8/14Thu
3 stopsSpirit Airlines
16h 26mBOI-SJO
8/21Thu
3 stopsSpirit Airlines
28h 53mSJO-BOI
$505

Search by stops

Search by airline

Search by price

Recent one-way flight deals

7/28Mon
2 stopsIberia
21h 19mBOI-SJO
$166
7/28Mon
1 stopUnited Airlines
12h 00mBOI-SJO
$192
8/15Fri
2 stopsAlaska Airlines
22h 06mGEG-LIR
$196
7/26Sat
1 stopAlaska Airlines
16h 25mGEG-SJO
$197
8/6Wed
1 stopAlaska Airlines
10h 31mGEG-LIR
$224
7/28Mon
3 stopsSpirit Airlines
39h 23mBOI-SJO
$226
7/18Fri
2 stops
16h 59mIDA-SJO
$242
7/18Fri
3 stops
21h 05mIDA-SJO
$312
7/18Fri
1 stopAmerican Airlines
15h 05mJAC-SJO
$377
7/18Fri
1 stopAmerican Airlines
15h 14mIDA-SJO
$455

Search by stops

Search by airline

Search by price

Last minute flights from Idaho to Costa Rica

Last minute flight, train and bus deals

7/5Sat
multi-stopAmerican Airlines
15h 05mGEG-SJO
7/15Tue
multi-stopAmerican Airlines
14h 36mSJO-GEG
$461
7/5Sat
multi-stopAmerican Airlines
15h 05mGEG-SJO
7/15Tue
multi-stopAmerican Airlines
24h 29mSJO-GEG
$467
7/4Fri
multi-stopAmerican Airlines
30h 13mGEG-SJO
7/22Tue
multi-stopAmerican Airlines
24h 29mSJO-GEG
$469
7/4Fri
multi-stopAmerican Airlines
30h 13mGEG-SJO
7/22Tue
multi-stopAmerican Airlines
24h 29mSJO-GEG
$500
7/3Thu
multi-stopUnited Airlines
26h 00mBOI-SJO
7/12Sat
multi-stopUnited Airlines
15h 52mSJO-BOI
$596
7/5Sat
multi-stopAlaska Airlines
34h 46mGEG-SJO
7/14Mon
multi-stopAlaska Airlines
17h 57mSJO-GEG
$612
7/4Fri
multi-stopAlaska Airlines
51h 59mGEG-SJO
7/21Mon
multi-stopAlaska Airlines
17h 57mSJO-GEG
$619
7/3Thu
multi-stopUnited Airlines
26h 00mBOI-SJO
7/12Sat
multi-stopUnited Airlines
14h 32mSJO-BOI
$631
7/3Thu
multi-stop
21h 35mBOI-SJO
7/5Sat
multi-stop
26h 13mSJO-BOI
$1,180
7/3Thu
multi-stop
14h 28mBOI-SJO
7/4Fri
multi-stop
18h 54mSJO-BOI
$1,356

Search by stops

Search by airline

Search by price

Everything you need to know for your flight to Costa Rica

Cabin class types available on flights to Idaho

Cabin classes available on flights to Idaho. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.