$145 Cheap Flights from St. George (SGU) to Sun Valley (SUN)

View $145 flight on Wed, Apr 8, 2026Opens in a new window

Popular airlines from St. George Regional Airport (SGU) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from St. George to Sun Valley (SGU-SUN)

Prices were available within the past 7 days and start at $145 for one-way flights and $420 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$420 Roundtrip, found 2 days ago
$420
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $420 found 2 days ago
Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$450 Roundtrip, found 2 days ago
$450
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $450 found 2 days ago
Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$490 Roundtrip, found 2 days ago
$490
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $490 found 2 days ago
Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$530 Roundtrip, found 2 days ago
$530
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $530 found 2 days ago
United
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$623 Roundtrip, found 2 days ago
$623
Roundtrip
found 2 days ago
Select United flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $623 found 2 days ago
Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$631 Roundtrip, found 2 days ago
$631
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $631 found 2 days ago
Delta
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$661 Roundtrip, found 2 days ago
$661
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $661 found 2 days ago
United
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$676 Roundtrip, found 2 days ago
$676
Roundtrip
found 2 days ago
Select United flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $676 found 2 days ago
United
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$694 Roundtrip, found 2 days ago
$694
Roundtrip
found 2 days ago
Select United flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $694 found 2 days ago
United
Sun, Apr 5 - Wed, Apr 8
SGU
St. George
SUN
Sun Valley
$706 Roundtrip, found 2 days ago
$706
Roundtrip
found 2 days ago
Select United flight, departing Sun, Apr 5 from St. George to Sun Valley, returning Wed, Apr 8, priced at $706 found 2 days ago

Frequently asked questions

How much does a flight from St. George Airport (SGU) to Friedman Memorial Airport (SUN) cost?
Secure a cheap one-way flight from $145 or cheap return flight from $420 from St. George Airport (SGU) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from St. George Airport (SGU) to Friedman Memorial Airport (SUN)?
The cheapest month to fly from SGU to SUN is April, when there's less demand. Off-peak months are typically when airlines offer lower prices between these airports.
What is the cheapest airline that flies from St. George Airport (SGU) to Friedman Memorial Airport (SUN)?
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 SGU to SUN flight.
How many flights per day from St. George Airport (SGU) to Friedman Memorial Airport (SUN)?
Direct flights from St. George Airport (SGU) to Friedman Memorial Airport (SUN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SGU to SUN?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can change depending on a number of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from St. George Airport (SGU) to Friedman Memorial Airport (SUN)?
To touch down at Friedman Memorial Airport (SUN) on schedule, choose a flight that leaves from St. George Airport (SGU) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 St. George Airport (SGU) to Friedman Memorial Airport (SUN) last-minute?
Waiting until just before your trip to book your flight from SGU to SUN often results in higher prices. Although you may find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary to maximize your chances of getting a bargain.
Is it cheaper to book a SGU to SUN flight and hotel package?
Securing a SGU to SUN flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of hotels and then add car rentals, activities and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from St. George Airport (SGU) to Friedman Memorial Airport (SUN)?
If you reserved your SGU to SUN flight in the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of fare 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, head to our Customer Service portal if you want more information.

Travel information

Origin airport
St. George
Destination airport
Friedman Memorial
Roundtrip price
$420
Distance
449 mi

Book with confidence

St. George to Sun Valley Flights

The cheapest times to fly from St. George to Sun Valley

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

 

The best time to book a flight from St. George to Sun Valley

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

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 St. George to Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $145 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 St. George to Sun Valley 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 St. George to Sun Valley 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.

 

St. George to Sun Valley Flights

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*Available to One Key members.