$151 Cheap Flights from Spokane (GEG) to Idaho Falls (IDA)

View $151 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Spokane International Airport (GEG) to Idaho Falls Regional Airport (IDA)

Cheap Flights from Spokane to Idaho Falls (GEG-IDA)

Prices were available within the past 7 days and start at $151 for one-way flights and $224 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Dec 3 - Sat, Dec 6
GEG
Spokane
IDA
Idaho Falls
$224 Roundtrip, found 1 day ago
$224
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Spokane to Idaho Falls, returning Sat, Dec 6, priced at $224 found 1 day ago
Delta
Sat, Dec 6 - Tue, Dec 9
GEG
Spokane
IDA
Idaho Falls
$226 Roundtrip, found 1 day ago
$226
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Spokane to Idaho Falls, returning Tue, Dec 9, priced at $226 found 1 day ago
Alaska Airlines
Fri, Dec 5 - Sat, Dec 13
GEG
Spokane
IDA
Idaho Falls
$234 Roundtrip, found 1 day ago
$234
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Spokane to Idaho Falls, returning Sat, Dec 13, priced at $234 found 1 day ago
Delta
Sat, Dec 6 - Sun, Dec 7
GEG
Spokane
IDA
Idaho Falls
$236 Roundtrip, found 1 day ago
$236
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Spokane to Idaho Falls, returning Sun, Dec 7, priced at $236 found 1 day ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
GEG
Spokane
IDA
Idaho Falls
$243 Roundtrip, found 5 days ago
$243
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Spokane to Idaho Falls, returning Sat, Dec 13, priced at $243 found 5 days ago
Alaska Airlines
Fri, Dec 5 - Sat, Dec 6
GEG
Spokane
IDA
Idaho Falls
$244 Roundtrip, found 11 hours ago
$244
Roundtrip
found 11 hours ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Spokane to Idaho Falls, returning Sat, Dec 6, priced at $244 found 11 hours ago
Delta
Sat, Dec 6 - Mon, Dec 15
GEG
Spokane
IDA
Idaho Falls
$246 Roundtrip, found 5 days ago
$246
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Dec 6 from Spokane to Idaho Falls, returning Mon, Dec 15, priced at $246 found 5 days ago
Hawaiian Airlines
Wed, Dec 10 - Sat, Dec 13
GEG
Spokane
IDA
Idaho Falls
$253 Roundtrip, found 4 days ago
$253
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 10 from Spokane to Idaho Falls, returning Sat, Dec 13, priced at $253 found 4 days ago
United
Tue, Dec 23 - Tue, Dec 30
GEG
Spokane
IDA
Idaho Falls
$630 Roundtrip, found 1 day ago
$630
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 23 from Spokane to Idaho Falls, returning Tue, Dec 30, priced at $630 found 1 day ago
American Airlines
Thu, Nov 27 - Sat, Nov 29
GEG
Spokane
IDA
Idaho Falls
$759 Roundtrip, found 3 hours ago
$759
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Thu, Nov 27 from Spokane to Idaho Falls, returning Sat, Nov 29, priced at $759 found 3 hours ago

Find the cheapest month to fly from Spokane (GEG) to Idaho Falls (IDA)

January is typically the cheapest month to fly

From $217 - $561 per traveler.

Alternative airports near Idaho Falls

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Idaho Falls Regional IDA. Cheapest and Closest option available. Average driving time to city center is 5 minutes. Flights from $420
IDA
Idaho Falls Regional
CheapestClosest
Average driving time to city center5 min
Flights from $420

Frequently asked questions

How much does a flight from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA) cost?
Grab a cheap one-way flight from $151 or cheap return flight from $224 from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA)?
Traveling in December is a great way to save, as it's the cheapest month for flights between GEG and IDA. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest GEG to IDA flight.
How many flights per day from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA)?
Nonstop flights from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from GEG to IDA?
Friday is usually the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, including the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA)?
To avoid potential delays on the Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being 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 Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA) last-minute?
Holding off until just before your departure to book a flight from GEG to IDA often results in higher prices. Although you may find some last-minute discounts, they're not always guaranteed. Allow some flexibility in your schedule for a better chance of getting a bargain.
Is it cheaper to book a GEG to IDA flight and hotel package?
Opting for a GEG to IDA flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of hotels and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Spokane Intl. Airport (GEG) to Idaho Falls Regional Airport (IDA)?
Typically, you can cancel or reschedule your GEG to IDA flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you'd like more information, visit our Customer Service portal.

Travel information

Origin airport
Spokane Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$224
Distance
387 mi

Book with confidence

Spokane to Idaho Falls Flights

The cheapest times to fly from Spokane 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 Spokane to Idaho Falls are during the month of December. You can find some of the cheapest flights from Spokane to Idaho Falls with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Spokane 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 Spokane 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 Spokane to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $151 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 Spokane 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 Spokane 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.

 

Spokane to Idaho Falls Flights

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*Available to One Key members.