$164 Cheap Flights from Kansas City (MCI) to Idaho Falls (IDA)

View $164 flight on Tue, Jun 17, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 30% on select hotels after you book a flight*
  • one key icon
    Earn twice
    Earn your airline miles on top of our OneKeyCash
    Learn about One Key
Find available prices by choosing your travel dates.

Cheap Flights from Kansas City to Idaho Falls (MCI-IDA)

Prices were available within the past 7 days and start at $164 for one-way flights and $327 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, May 14 - Sat, May 17
MCI
Kansas City
IDA
Idaho Falls
$327 Roundtrip, found 2 days ago
$327
Roundtrip
found 2 days ago
Select United flight, departing Wed, May 14 from Kansas City to Idaho Falls, returning Sat, May 17, priced at $327 found 2 days ago
American Airlines
Wed, May 14 - Sat, May 17
MCI
Kansas City
IDA
Idaho Falls
$332 Roundtrip, found 2 days ago
$332
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, May 14 from Kansas City to Idaho Falls, returning Sat, May 17, priced at $332 found 2 days ago
Delta
Sat, Jun 14 - Wed, Jun 18
MCI
Kansas City
IDA
Idaho Falls
$339 Roundtrip, found 2 days ago
$339
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jun 14 from Kansas City to Idaho Falls, returning Wed, Jun 18, priced at $339 found 2 days ago
United
Wed, May 14 - Sat, May 17
MCI
Kansas City
IDA
Idaho Falls
$340 Roundtrip, found 2 days ago
$340
Roundtrip
found 2 days ago
Select United flight, departing Wed, May 14 from Kansas City to Idaho Falls, returning Sat, May 17, priced at $340 found 2 days ago
United
Sat, May 17 - Sat, May 24
MCI
Kansas City
IDA
Idaho Falls
$341 Roundtrip, found 3 days ago
$341
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 17 from Kansas City to Idaho Falls, returning Sat, May 24, priced at $341 found 3 days ago
United
Sat, May 17 - Sat, May 24
MCI
Kansas City
IDA
Idaho Falls
$344 Roundtrip, found 3 days ago
$344
Roundtrip
found 3 days ago
Select United flight, departing Sat, May 17 from Kansas City to Idaho Falls, returning Sat, May 24, priced at $344 found 3 days ago
Delta
Tue, May 27 - Wed, May 28
MCI
Kansas City
IDA
Idaho Falls
$347 Roundtrip, just found
$347
Roundtrip
just found
Select Delta flight, departing Tue, May 27 from Kansas City to Idaho Falls, returning Wed, May 28, priced at $347 just found
Delta
Tue, May 27 - Thu, May 29
MCI
Kansas City
IDA
Idaho Falls
$349 Roundtrip, just found
$349
Roundtrip
just found
Select Delta flight, departing Tue, May 27 from Kansas City to Idaho Falls, returning Thu, May 29, priced at $349 just found
Alaska Airlines
Wed, Sep 10 - Wed, Sep 17
MCI
Kansas City
IDA
Idaho Falls
$350 Roundtrip, found 15 hours ago
$350
Roundtrip
found 15 hours ago
Select Alaska Airlines flight, departing Wed, Sep 10 from Kansas City to Idaho Falls, returning Wed, Sep 17, priced at $350 found 15 hours ago
Hawaiian Airlines
Wed, Aug 20 - Sun, Aug 24
MCI
Kansas City
IDA
Idaho Falls
$423 Roundtrip, found 14 hours ago
$423
Roundtrip
found 14 hours ago
Select Hawaiian Airlines flight, departing Wed, Aug 20 from Kansas City to Idaho Falls, returning Sun, Aug 24, priced at $423 found 14 hours ago
Flights from Kansas City (MCI) to Idaho Falls (IDA)
Origin airport
Kansas City Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$326
Distance
943 mi

Kansas City to Idaho Falls Flights

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

The best time to book a flight from Kansas City to Idaho Falls

Sunday is one of the best days to book for cheap flights from Kansas City 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 Kansas City 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 Kansas City to Idaho Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $164 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 Kansas City 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 Kansas City 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.

Frequently asked questions

How much does a flight from Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA) cost?
Discover the latest flight deals from MCI to IDA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from MCI to IDA?
The cheapest flights from MCI to IDA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from MCI to IDA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from MCI to IDA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA)?
There aren’t any daily direct flights from Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you’ll be cruising above the clouds in no time at all.
What day of the week has the most flights from MCI to IDA?
Usually you’ll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can vary based on the time of year, carrier 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 Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA)?
To avoid possible delays on the Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA) route, aim to fly before 3 PM. Flights after this time are 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 Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA) last-minute?
Booking your plane ticket from MCI to IDA just before your journey is usually more expensive. But if there’s some wiggle room with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book a MCI to IDA flight and hotel package?
Compared with arranging hotels and flights separately, booking a MCI to IDA flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place takes the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kansas City Intl. Airport (MCI) to Idaho Falls Regional Airport (IDA)?
If you booked your MCI to IDA flight within the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Explore a world of travel with Expedia

*Available to One Key members.