Cheap Flights from Rock Springs (RKS) to Idaho Falls (IDA)

Popular airlines from Rock Springs, WY (RKS-Sweetwater County) to Idaho Falls Regional Airport (IDA)

Frequently asked questions

How much does a flight from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA) cost?
Secure a cheap one-way flight or cheap return flight from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA)?
is the most affordable month to fly from RKS to IDA. Traveling during an off-peak travel window is often the key to better flight prices.
What is the cheapest airline that flies from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA)?
Expedia's filter tool lets you easily compare different airlines, departure 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 RKS to IDA flight.
How many flights per day from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA)?
There are no daily nonstop flights departing from Sweetwater County Airport (RKS) 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.
What day of the week has the most flights from RKS to IDA?
Friday is generally the busiest day for flights, while Tuesday is often the quietest.* Keep in mind that flight schedules can change based on a range of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA)?
To land at Idaho Falls Regional Airport (IDA) on schedule, opt for a flight that leaves Sweetwater County Airport (RKS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**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 Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA) last-minute?
Last-minute bookings from RKS to IDA are generally more expensive. To secure the cheapest rates, start searching for flights well in advance. That being said, if you can play around with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book a RKS to IDA flight and hotel package?
You can save money by booking a RKS 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 it all in one convenient place. Once you've chosen your ideal flights and accommodations, consider adding extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Sweetwater County Airport (RKS) to Idaho Falls Regional Airport (IDA)?
If you booked your RKS to IDA flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, 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 for more details.

Travel information

Origin airport
Sweetwater County
Destination airport
Idaho Falls Regional
Distance
201 mi

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Rock Springs to Idaho Falls Flights

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

 

The best time to book a flight from Rock Springs to Idaho Falls

Sunday is one of the best days to book for cheap flights from Rock Springs 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 Rock Springs 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 Rock Springs to Idaho Falls 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 Rock Springs 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 Rock Springs 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.

 

Rock Springs to Idaho Falls Flights

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*Available to One Key members.