$339 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 6/5. 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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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

Fri, May 1 - Mon, May 4
United Airlines Logo
1:20 pm - 4:48 pm
LIR
-
BOI
27h 28m
2 stops
United Airlines Logo
5:00 am - 3:19 pm
BOI
-
LIR
10h 19m
1 stop
$712United Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
11:20 am - 11:01 pm
LIR
-
BOI
11h 41m
1 stop
Alaska Airlines Logo
7:14 pm - 6:20 am
BOI
-
LIR
11h 06m
1 stop
$751Alaska Airlines
Fri, May 1 - Mon, May 4
United Airlines Logo
1:20 pm - 1:27 pm
LIR
-
BOI
24h 07m
2 stops
United Airlines Logo
5:00 am - 3:19 pm
BOI
-
LIR
10h 19m
1 stop
$789United Airlines
Fri, May 1 - Mon, May 4
Alaska Airlines Logo
11:20 am - 11:01 pm
LIR
-
BOI
11h 41m
1 stop
Alaska Airlines Logo
7:14 pm - 6:20 am
BOI
-
LIR
11h 06m
1 stop
$806Alaska 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 flight to Boise?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Boise was found on the route from Liberia, at $712 return. The most popular connection is from Seattle to Boise and KAYAK users have found round-trip deals for as low as $173 in the last 3 days.

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 return flights. On the other hand, the most expensive months are March and January, where the average cost of tickets from Costa Rica is $870 and $706 respectively. For one-way flights, the best month to travel is July with an average price of $307.

Good to know

Low seasonJanuary
Cheapest flight$339
Best time to beat the crowds but there is an average 47% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Liberia to Boise

FAQs - booking Boise flights

  • What is the cheapest flight to Boise?

    In the last 3 days, the cheapest flight deal to Boise was found on the route from Liberia, at $712 return. The most popular connection is from Seattle to Boise and KAYAK users have found round-trip deals for as low as $173 in the last 3 days.

  • 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 715 direct flights from within Costa Rica to Boise. The most common day for departures is Sunday, 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 9589 reviews
7.1Entertainment
7.3Comfort
8.1Crew
6.6Food
7.7Boarding
Airline reviews

Lounges are packed and very poor, food is really bad, for business class in an airline is well below expectations

6.0 GoodFabian, Apr 2026
BJX - IAH
Read more United Airlines reviews

Lounges are packed and very poor, food is really bad, for business class in an airline is well below expectations

The international / itallian speakers did not seem as friendly and professional as the others. Drink selections were denied ( a beer) until questioned about lack of ANY beer on the plane and then four options were given.

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

It was a more comfortable seat don't get stuck in middle, makes for uncomfortable situation

Business class would have been better , poor quality blanket , services

First time flying with UA and it was a great experience. Thank you

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

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