Cheap flight tickets from Spokane International to Idaho Falls

Compare Spokane International to Idaho Falls flight deals

Find the cheapest month or even day of the year to fly to Idaho Falls

Book the best Idaho Falls fare with no extra fees

Flight deals from Spokane International to Idaho Falls

Looking for a cheap last-minute deal or the best return flight from Spokane International Airport to Idaho Falls Airport? If you want to travel next month, return fares start from RM1,571. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Spokane International to Idaho Falls

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Spokane International to Idaho Falls flights are currently cheapest in May.

Spokane International to Idaho Falls: Alternative routes

Compare routes from Spokane International to Idaho Falls below. You may find an airport to fly into that's cheaper, faster, or easier than Idaho Falls.

Spokane to Idaho Falls: Flight information

The things to know before you go.
Cheapest flight foundRM671
Cheapest month to flyMay

Finding cheap flights from Spokane International to Idaho Falls: Frequently asked questions

The best price we found for a return flight from Spokane International to Idaho Falls is RM1,343. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Spokane International to Idaho Falls. But we found flights with one or more stops from RM1,343.
As of May 2026, there are no flights flying from Spokane International to Idaho Falls.
The cheapest month to fly from Spokane International to Idaho Falls is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Spokane International Airport to Idaho Falls Airport on Saturday, 23 May 2026.
No airlines currently offer direct flights between Spokane International Airport and Idaho Falls Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Idaho Falls but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Idaho Falls is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Idaho Falls.

Travelling from Spokane International Airport (GEG) to Idaho Falls Regional Airport (IDA): what you need to know

  • Get to the airport on time so you don't miss your GEG to IDA flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Travelling during a peak time such as August? School holidays and other popular periods can lead to longer lines and delays at check-in and security. Play things extra safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

  • Consider adding a stopover when booking your ticket from Spokane International Airport to Idaho Falls Regional Airport. Simply uncheck 'Direct flights only' to break up your trip, or visit a new city along the way. Here's where you can stop between GEG and IDA:

    • Salt Lake City International Airport

    • Denver International Airport

    • Harry Reid Airport (formerly McCarran Airport)

How to find the cheapest flights from Spokane International Airport (GEG) to Idaho Falls Regional Airport (IDA)

  • The lowest price we've seen for a one-way Spokane International Airport to Idaho Falls Regional Airport flight is RM671. A return ticket is currently RM1,343. Depending on the availability when you book, these fares can change.

  • It's usually best to book in advance if you're hoping to get cheap tickets from GEG to IDA. That's because flight prices are based on demand, which tends to rise closer to departure.

  • The 'Whole month' tool shows you the cheapest flights from Spokane International Airport to Idaho Falls Regional Airport across the entire month. It's a great way to snap up a bargain if your dates are flexible.

  • Save time looking for cheap flights from GEG to IDA by setting up a Price Alert. You'll get an email or notification through the app when a lower fare pops up.

  • Tailor your trip with filters. Choose your ideal departure and arrival times, total journey duration and airlines. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Spokane International Airport to Idaho Falls Regional Airport.

Handy information about Spokane International Airport (GEG)

  • The address for GEG is 9000 West Airport Drive.

  • Spokane International Airport has a strong on-time performance, reducing the likelihood of delays. Departures from GEG make it to their destination as scheduled 83.11% of the time.

  • To get to Spokane International Airport from central Spokane, it takes around 15 minutes by car. Of course, this depends on traffic conditions. It's approximately 10 kilometres from the airport to the city centre.

  • Expect a journey time of around 1 hour 5 minutes on public transport.

  • Taking an early flight from Spokane International Airport to Idaho Falls Regional Airport? Avoid the hassle of rushing to the airport (and sneak in some extra precious sleep) by picking one of these stays close to GEG:

Arriving at Idaho Falls Regional Airport (IDA)

  • The last thing you want is a long journey to your hotel if you're landing late on a Spokane International Airport to Idaho Falls Regional Airport flight. Stay at one of these accommodation options near IDA instead:

  • Follow your own route with an Idaho Falls Regional Airport rental car. Pick up your wheels from Budget, Avis or Alamo and experience more of Idaho Falls and beyond.

  • Give yourself a better shot at securing the best deal by booking as early as possible. Reserving your ride from Idaho Falls Regional Airport several weeks in advance is a good move.

Getting from Idaho Falls Regional Airport (IDA) to central Idaho Falls

  • The address for IDA is 2140 North Skyline.

  • From Idaho Falls Regional Airport, Idaho Falls is approximately 5 kilometres away. It takes around 10 minutes to reach the centre driving.

  • If you're using public transport, expect a journey time of roughly 1 hour.

When to fly to Idaho Falls Regional Airport (IDA)

  • It's time to pick your trip dates for your flight from Spokane International Airport to Idaho Falls Regional Airport. July is the most popular month to visit Idaho Falls. If you'd like a more low-key vibe, go in February.

  • Before locking in your flight from Spokane International Airport to Idaho Falls Regional Airport, consider the kind of weather you like. July is the warmest month in Idaho Falls, with temperatures ranging from 11ºC (52ºF) to 35ºC (95ºF).

  • January sees average temperatures of between -15ºC (5ºF) and 1ºC (34ºF). Look for cheap tickets from GEG to IDA around that time if you want to travel when it's cooler.

Explore more of United States

  • You've seen Idaho Falls, now it's time to explore more of United States. Journey about 306 kilometres south to Salt Lake City to tick off its leading attractions. From Temple Square to Utah State Capitol and Red Butte Garden, there's plenty to keep you busy.

  • Around 338 kilometres west of Idaho Falls, Boise is another favourite stop in United States. Start your sightseeing at Idaho State Capitol Building, Old Idaho Penitentiary and Zoo Boise.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.