$185 Cheap Flights from Idaho Falls (IDA) to St. George (SGU)

View $185 flight on Wed, Dec 24, 2025Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to St. George Regional Airport (SGU)

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Cheap Flights from Idaho Falls to St. George (IDA-SGU)

Prices were available within the past 7 days and start at $185 for one-way flights and $218 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Jan 19 - Wed, Feb 4
IDA
Idaho Falls
SGU
St. George
$218 Roundtrip, found 2 days ago
$218
Roundtrip
found 2 days ago
Select Delta flight, departing Mon, Jan 19 from Idaho Falls to St. George, returning Wed, Feb 4, priced at $218 found 2 days ago
United
Sat, Dec 6 - Sun, Dec 7
IDA
Idaho Falls
SGU
St. George
$246 Roundtrip, found 3 days ago
$246
Roundtrip
found 3 days ago
Select United flight, departing Sat, Dec 6 from Idaho Falls to St. George, returning Sun, Dec 7, priced at $246 found 3 days ago
Delta
Mon, Nov 17 - Sat, Dec 6
IDA
Idaho Falls
SGU
St. George
$248 Roundtrip, found 4 days ago
$248
Roundtrip
found 4 days ago
Select Delta flight, departing Mon, Nov 17 from Idaho Falls to St. George, returning Sat, Dec 6, priced at $248 found 4 days ago
American Airlines
Thu, Dec 25 - Thu, Jan 1
IDA
Idaho Falls
SGU
St. George
$253 Roundtrip, found 2 days ago
$253
Roundtrip
found 2 days ago
Select American Airlines flight, departing Thu, Dec 25 from Idaho Falls to St. George, returning Thu, Jan 1, priced at $253 found 2 days ago
United
Wed, Nov 12 - Sat, Nov 15
IDA
Idaho Falls
SGU
St. George
$256 Roundtrip, found 4 days ago
$256
Roundtrip
found 4 days ago
Select United flight, departing Wed, Nov 12 from Idaho Falls to St. George, returning Sat, Nov 15, priced at $256 found 4 days ago
Delta
Thu, Jan 22 - Wed, Feb 4
IDA
Idaho Falls
SGU
St. George
$267 Roundtrip, found 2 days ago
$267
Roundtrip
found 2 days ago
Select Delta flight, departing Thu, Jan 22 from Idaho Falls to St. George, returning Wed, Feb 4, priced at $267 found 2 days ago
Delta
Sun, Nov 23 - Sun, Dec 7
IDA
Idaho Falls
SGU
St. George
$268 Roundtrip, found 4 days ago
$268
Roundtrip
found 4 days ago
Select Delta flight, departing Sun, Nov 23 from Idaho Falls to St. George, returning Sun, Dec 7, priced at $268 found 4 days ago
United
Mon, Nov 24 - Wed, Dec 3
IDA
Idaho Falls
SGU
St. George
$278 Roundtrip, found 22 hours ago
$278
Roundtrip
found 22 hours ago
Select United flight, departing Mon, Nov 24 from Idaho Falls to St. George, returning Wed, Dec 3, priced at $278 found 22 hours ago
American Airlines
Sat, Jan 24 - Tue, Jan 27
IDA
Idaho Falls
SGU
St. George
$283 Roundtrip, found 4 days ago
$283
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jan 24 from Idaho Falls to St. George, returning Tue, Jan 27, priced at $283 found 4 days ago
Delta
Thu, Dec 4 - Sun, Dec 7
IDA
Idaho Falls
SGU
St. George
$288 Roundtrip, found 3 days ago
$288
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Dec 4 from Idaho Falls to St. George, returning Sun, Dec 7, priced at $288 found 3 days ago

Find the cheapest month to fly from Idaho Falls (IDA) to St. George (SGU)

August is typically the cheapest month to fly

From $218 - $546 per traveler.

Alternative airports near St. George

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

Select flight to St. George Regional Airport SGU. Cheapest and Closest option available. Average driving time to city center is 20 minutes. Flights from $418
SGU
St. George Regional Airport
CheapestClosest
Average driving time to city center20 min
Flights from $418

Frequently asked questions

How much does a flight from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU) cost?
Secure a cheap one-way flight from $185 or cheap return flight from $218 from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU) 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 Idaho Falls Regional Airport (IDA) to St. George Airport (SGU)?
The cheapest month to fly from IDA to SGU is January, when demand is low. Off-peak months are typically when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest IDA to SGU flight.
How many flights per day from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU)?
There aren't any daily nonstop flights departing from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds before you know it.
What day of the week has the most flights from IDA to SGU?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can vary from season to season and during peak travel times or public holidays.*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 St. George Airport (SGU)?
Opt for a flight from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour 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 St. George Airport (SGU) last-minute?
Booking your plane ticket from IDA to SGU just before your journey is usually more expensive. But if you're flexible with your departure times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book an IDA to SGU flight and hotel package?
You'll typically save money by booking an IDA to SGU 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 selecting your preferred flights and accommodations, consider adding extras such as activities, car rentals and tours.
Can I cancel or change the date of my flight from Idaho Falls Regional Airport (IDA) to St. George Airport (SGU)?
Typically, you can modify or cancel your IDA to SGU flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, visit our Customer Service portal.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
St. George
Airlines serving
American Airlines, Delta, United
Roundtrip price
$218
Distance
454 mi

Book with confidence

Idaho Falls to St. George Flights

The cheapest times to fly from Idaho Falls to St. George

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

 

The best time to book a flight from Idaho Falls to St. George

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

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 St. George in 2025. You can also book with separate airlines for your outbound and return journeys, from $185 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 St. George 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 St. George 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.

 

Idaho Falls to St. George Flights

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