Cheap Flights from Idaho Falls (IDA) to Marion (MWA)

Popular airlines from Idaho Falls Regional Airport (IDA) to Marion, IL (MWA-Williamson County Regional)

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Cheap Flights from Idaho Falls to Marion (IDA-MWA)

Prices were available within the past 7 days and start at for one-way flights and $1,176 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Dec 18 - Thu, Dec 25
IDA
Idaho Falls
MWA
Marion
$1,176 Roundtrip, found 2 days ago
$1,176
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Idaho Falls to Marion, returning Thu, Dec 25, priced at $1,176 found 2 days ago
Alaska Airlines
Thu, Dec 18 - Fri, Jan 2
IDA
Idaho Falls
MWA
Marion
$1,250 Roundtrip, found 2 days ago
$1,250
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Idaho Falls to Marion, returning Fri, Jan 2, priced at $1,250 found 2 days ago
Alaska Airlines
Thu, Dec 18 - Sat, Jan 3
IDA
Idaho Falls
MWA
Marion
$1,325 Roundtrip, found 2 days ago
$1,325
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Idaho Falls to Marion, returning Sat, Jan 3, priced at $1,325 found 2 days ago
Alaska Airlines
Thu, Dec 18 - Sun, Jan 4
IDA
Idaho Falls
MWA
Marion
$1,335 Roundtrip, found 2 days ago
$1,335
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Idaho Falls to Marion, returning Sun, Jan 4, priced at $1,335 found 2 days ago
Alaska Airlines
Thu, Dec 18 - Sat, Jan 3
IDA
Idaho Falls
MWA
Marion
$1,365 Roundtrip, found 2 days ago
$1,365
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Idaho Falls to Marion, returning Sat, Jan 3, priced at $1,365 found 2 days ago
Alaska Airlines
Fri, Dec 19 - Sat, Jan 3
IDA
Idaho Falls
MWA
Marion
$1,399 Roundtrip, found 2 days ago
$1,399
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Fri, Dec 19 from Idaho Falls to Marion, returning Sat, Jan 3, priced at $1,399 found 2 days ago
Flights from Idaho Falls (IDA) to Marion (MWA)
Origin airport
Idaho Falls Regional
Destination airport
Williamson County Regional
Roundtrip price
$1,176
Distance
1268 mi

Idaho Falls to Marion Flights

The cheapest times to fly from Idaho Falls to Marion

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

 

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

Sunday is one of the best days to book for cheap flights from Idaho Falls to Marion: 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 Idaho Falls to Marion

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 Idaho Falls to Marion in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 Idaho Falls to Marion 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 Idaho Falls to Marion 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 Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA) cost?
Discover the latest flight deals from IDA to MWA 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 IDA to MWA?
The cheapest flights from IDA to MWA 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 IDA to MWA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IDA to MWA. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA)?
Direct flights from Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA) 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 choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from IDA to MWA?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA)?
Book a flight from Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA) last-minute?
Last-minute fares from IDA to MWA are usually more expensive. To secure the lowest rates, start looking for flights early. That being said, if your travel plans are flexible, you may find a cheap ticket right before you leave.
Is it cheaper to book an IDA to MWA flight and hotel package?
You'll typically save money by securing an IDA to MWA 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 place. After choosing your preferred 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 Idaho Falls Regional Airport (IDA) to Williamson County Regional Airport (MWA)?
It's generally possible to cancel or reschedule your IDA to MWA flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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