$278 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 12/15. 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
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Everything you should know

Cheapest round-trip
Multiple Airlines
Fri 11/7
SJO - BOI • multi-stop
Cheapest one-way
$278
Alaska Airlines
Mon 12/15
LIR - BOI • 2 stops
When to travel
July
Cheapest • 35% 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

Multiple Airlines Logo
SJO-BOI
3008 mimulti-stop
Multiple Airlines Logo
BOI-SJO
3008 mimulti-stop
Multiple Airlines
Find Deal
Multiple Airlines Logo
LIR-BOI
2923 mimulti-stop
Multiple Airlines Logo
BOI-LIR
2923 mimulti-stop
Multiple Airlines
Find Deal
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 November and February, where the average cost of tickets from Costa Rica is $711 and $633 respectively. For return trips, the best month to travel is July with an average price of $307.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$278
Best time to beat the crowds but there is an average 33% increase in price.
Most popular time to fly with an average 28% 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.

  • What is the cheapest day to fly to Boise?

    Based on KAYAK data, the cheapest day to fly to Boise is Tuesday where tickets can be as cheap as $465. On the other hand, the most expensive day to fly is Friday, where prices are $706 on average.

  • 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.

  • What is the cheapest time of day to fly to Boise?

    The cheapest time of day to fly to Boise is generally in the afternoon, when flights cost $434 on average. The most expensive time of day to fly to Boise is generally at night, which is peak travel time and where the average cost of a ticket is $668.

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

    Each week there are around 819 direct flights from within Costa Rica to Boise. The most common day for departures is Monday, 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 9007 reviews
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
Airline reviews

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

10.0 ExcellentKaren, Nov 2025EWR - LAX
Read more United Airlines reviews

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Very disappointed with food service. They ran out of entree selections- so for the last 10 rows only option was lentil stew. Not a fan. Then the morning service (pizza twist) was lukewarm at best- I exited my 12 hour flight having eaten a roll and dessert. They knew it was a full flight.

Premium Plus is a really good idea for longer flights

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the 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)