$282 Find Cheap Flights from Costa Rica to Boise

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Boise departing on 3/10. 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
1 adult, Economy, 0 bags

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Boise, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$604
Alaska Airlines
Thu 2/26Mon 3/2
LIR - BOI • 1 stop
Cheapest one-way
$282
United Airlines
Tue 3/10
LIR - BOI • 2 stops
When to travel
July
Cheapest • 32% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Boise!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Costa Rica to Boise

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Costa Rica to Boise that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Costa Rica to Boise

Thu, Feb 26 - Mon, Mar 2
Alaska Airlines Logo
7:08 pm - 12:44 pm
LIR
-
BOI
18h 36m
1 stop
Alaska Airlines Logo
3:47 pm - 6:45 am
BOI
-
LIR
13h 58m
2 stops
$604Alaska Airlines
Thu, Feb 26 - Mon, Mar 2
Alaska Airlines Logo
7:08 pm - 7:32 pm
LIR
-
BOI
25h 24m
2 stops
Alaska Airlines Logo
1:20 pm - 6:45 am
BOI
-
LIR
16h 25m
2 stops
$711Alaska Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:50 pm - 11:48 pm
LIR
-
BOI
11h 58m
1 stop
United Airlines Logo
6:25 am - 4:08 pm
BOI
-
LIR
8h 43m
1 stop
$908United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
12:50 pm - 9:32 pm
LIR
-
BOI
9h 42m
1 stop
United Airlines Logo
6:25 am - 4:08 pm
BOI
-
LIR
8h 43m
1 stop
$1,023United Airlines
Booking Insights

KAYAK's insights & trends for flights to Boise

Get data-powered insights and trends for flights to Boise to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Boise?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Boise, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Boise is July, where tickets cost $307 on average for one-way flights. On the other hand, the most expensive months are January and February, where the average cost of tickets from Costa Rica is $706 and $530 respectively. For return trips, the best month to travel is July with an average price of $307.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$282
Best time to beat the crowds but there is an average 57% increase in price.
Most popular time to fly with an average 4% increase in price.
Flight from Liberia to Boise

FAQs - booking Boise flights

  • How far is Boise Air Term. Gowen Fld Airport from central Boise?

    You’ll need to travel 3 miles to reach the Boise city center from Boise Air Term. Gowen Fld Airport.

  • What is the name of Boise’s airport?

    All flights to Boise land at Boise Air Term. Gowen Fld Airport. The airport code is BOI,and it can also be referred to as Air Term Gowen Fld, Air Term. Gowen Fld, or Boise.

  • How does KAYAK find such low prices on flights to Boise?

    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 to Boise.

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

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

  • What is the Hacker Fare option on flights to Boise?

    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 Boise 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 to Boise?

    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 Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Boise are there each week?

    Each week there are around 748 direct flights from within Costa Rica to Boise. The most common day for departures is Thursday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Boise

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Boise flight deals.

Reviews of the top airline flying from Costa Rica to Boise

 
See real verified KAYAK customer reviews for airlines flying to Boise. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Costa Rica to Boise. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Boise? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9283 reviews
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Airline reviews

Both of my flights arrived early and check in process was smooth

10.0 ExcellentDarnell, Feb 2026
COS - DEN
Read more United Airlines reviews

Both of my flights arrived early and check in process was smooth

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Much better than Spirit. I was please by the easy fast check in and boarding

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

Everything was on time Will use united again for sure

Plane outlets in my row not working to charge phone. Staff response was, well it should be. Plug into seed for volume not working well. Had to find the sweet spot for plug in or it would shut off and on.

Fine not above and beyond as I had a connection that was delayed due to maintenance

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Traveling to a place near Boise?

Book flights to Boise if you plan to visit one of these locations
McCall
Ontario

Everything you need to know for your flight to Boise

Information on the airport you'll fly into in Boise

Boise (BOI)