$2,044+ Cheap flights from Idaho to Guam
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — GUM
Apr 30 — May 71
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Idaho to Guam
Keep the following information in mind while searching for Idaho to Guam flight deals. Data was last updated April 25, 2025.
Most accurate provider | AranGrant 3 stars |
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Most trusted provider | AranGrant 3 stars |
Find flight deals from Idaho to Guam
Cheapest flights from Idaho to GuamExplore the most affordable flight options available from Idaho to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.
Explore the most affordable flight options available from Idaho to Guam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 25, 2025.
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:00 amGEG - GUM
2 stops44h 00mUnited Airlines
Sun 1/47:25 amGUM - GEG
2 stops23h 15mUnited Airlines
Deal found 4/24![United Airlines logo]()
$2,044
Best time to book a flight from Idaho to Guam
Have a flexible travel schedule? Discover the best time to fly to Guam from Idaho with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Idaho to Guam
What is the cheapest time of day to fly from ID to GU?
Find hourly flight availability from Idaho to Guam. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 25, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Idaho to Guam as you normally would.
Rainfall in Guam by month
Plan your trip to Guam by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Guam ranges from 2.6 - 14.4 inches per month. August is typically the wettest month, when rainfall can reach 14.4 in. March is typically the driest time to visit Guam when rainfall is around 2.6 in.
Temperature in Guam by month
Plan your trip to Guam by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Guam, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 80.6 F).