$1,241 Cheap Flights from Guam (GUM) to Idaho Falls (IDA)

View $1,241 flight on Sun, Dec 21, 2025Opens in a new window

Popular airlines from Barrigada - A.B. Won Pat International Airport (GUM) to Idaho Falls Regional Airport (IDA)

Cheap Flights from Guam to Idaho Falls (GUM-IDA)

Prices were available within the past 7 days and start at $1,241 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA) cost?
Grab a cheap one-way flight from $1,241 or cheap return flight from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA)?
The cheapest month to fly from GUM to IDA is , when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest GUM to IDA flight.
How many flights per day from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA)?
There aren't any daily direct flights from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from GUM to IDA?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can vary depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA)?
Book a flight from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Departures later than this are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA) last-minute?
Booking your plane ticket from GUM to IDA shortly before your journey is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a GUM to IDA flight and hotel package?
You'll typically save money by booking a GUM to IDA flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras such as car rentals, activities and tours.
Can I cancel or change the date of my flight from A.B. Won Pat Intl. Airport (GUM) to Idaho Falls Regional Airport (IDA)?
If you booked your GUM to IDA flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
A.B. Won Pat Intl.
Destination airport
Idaho Falls Regional
Distance
6216 mi

Book with confidence

Guam to Idaho Falls Flights

The cheapest times to fly from Guam to Idaho Falls

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Guam to Idaho Falls are during the month of . You can find some of the cheapest flights from Guam to Idaho Falls with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Guam to Idaho Falls

Sunday is one of the best days to book for cheap flights from Guam to Idaho Falls: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Guam to Idaho Falls

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Guam to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,241 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Guam to Idaho Falls flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Guam to Idaho Falls airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Guam to Idaho Falls Flights

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*Available to One Key members.