$150 Cheap Flights from Raleigh (RDU) to Sun Valley (SUN)

View $150 flight on Fri, Jan 16, 2026Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from Raleigh to Sun Valley (RDU-SUN)

Prices were available within the past 7 days and start at $150 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Jan 29 - Tue, Feb 3
RDU
Raleigh
SUN
Sun Valley
$289 Roundtrip, found 20 hours ago
$289
Roundtrip
found 20 hours ago
Select Alaska Airlines flight, departing Thu, Jan 29 from Raleigh to Sun Valley, returning Tue, Feb 3, priced at $289 found 20 hours ago
Delta
Tue, Jan 6 - Wed, Jan 21
RDU
Raleigh
SUN
Sun Valley
$289 Roundtrip, found 6 hours ago
$289
Roundtrip
found 6 hours ago
Select Delta flight, departing Tue, Jan 6 from Raleigh to Sun Valley, returning Wed, Jan 21, priced at $289 found 6 hours ago
United
Sun, Feb 1 - Sat, Feb 7
RDU
Raleigh
SUN
Sun Valley
$289 Roundtrip, found 4 days ago
$289
Roundtrip
found 4 days ago
Select United flight, departing Sun, Feb 1 from Raleigh to Sun Valley, returning Sat, Feb 7, priced at $289 found 4 days ago
Delta
Mon, Feb 23 - Sat, Feb 28
RDU
Raleigh
SUN
Sun Valley
$294 Roundtrip, found 7 hours ago
$294
Roundtrip
found 7 hours ago
Select Delta flight, departing Mon, Feb 23 from Raleigh to Sun Valley, returning Sat, Feb 28, priced at $294 found 7 hours ago
Delta
Sun, Feb 1 - Sun, Feb 15
RDU
Raleigh
SUN
Sun Valley
$298 Roundtrip, found 2 days ago
$298
Roundtrip
found 2 days ago
Select Delta flight, departing Sun, Feb 1 from Raleigh to Sun Valley, returning Sun, Feb 15, priced at $298 found 2 days ago
Delta
Mon, Feb 23 - Thu, Mar 12
RDU
Raleigh
SUN
Sun Valley
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Feb 23 from Raleigh to Sun Valley, returning Thu, Mar 12, priced at $299 found 1 day ago
Delta
Sat, Jan 31 - Sun, Feb 15
RDU
Raleigh
SUN
Sun Valley
$303 Roundtrip, found 2 days ago
$303
Roundtrip
found 2 days ago
Select Delta flight, departing Sat, Jan 31 from Raleigh to Sun Valley, returning Sun, Feb 15, priced at $303 found 2 days ago
United
Mon, Jan 19 - Mon, Jan 26
RDU
Raleigh
SUN
Sun Valley
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select United flight, departing Mon, Jan 19 from Raleigh to Sun Valley, returning Mon, Jan 26, priced at $311 found 1 day ago
American Airlines
Sun, Feb 1 - Sat, Feb 7
RDU
Raleigh
SUN
Sun Valley
$359 Roundtrip, found 4 days ago
$359
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Feb 1 from Raleigh to Sun Valley, returning Sat, Feb 7, priced at $359 found 4 days ago
Hawaiian Airlines
Tue, Feb 17 - Thu, Feb 26
RDU
Raleigh
SUN
Sun Valley
$404 Roundtrip, found 2 days ago
$404
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Feb 17 from Raleigh to Sun Valley, returning Thu, Feb 26, priced at $404 found 2 days ago

Alternative airports near Sun Valley

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

Select flight to Friedman Memorial SUN. Cheapest and Closest option available. Average driving time to city center is 23 minutes. Flights from $494
SUN
Friedman Memorial
CheapestClosest
Average driving time to city center23 min
Flights from $494
Flights from Raleigh (RDU) to Sun Valley (SUN)
Origin airport
Raleigh - Durham Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$288
Distance
1943 mi

Raleigh to Sun Valley Flights

The cheapest times to fly from Raleigh 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 Raleigh to Sun Valley are during the month of January. You can find some of the cheapest flights from Raleigh to Sun Valley with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to Sun Valley

Sunday is one of the best days to book for cheap flights from Raleigh 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 Raleigh 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 Raleigh to Sun Valley in 2026. You can also book with separate airlines for your outbound and return journeys, from $150 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 Raleigh 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 Raleigh 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.

 

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN) cost?
Snag a cheap one-way flight from $150 or cheap return flight from $289 from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN)?
Traveling in January is a great way to save, as it's the cheapest month for flights between RDU and SUN. You'll usually find the lowest prices during the off-season.
What is the cheapest airline that flies from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN)?
To find the cheapest airline flying from RDU to SUN, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN)?
Nonstop flights from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN) aren't available daily, so you'll have 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 RDU to SUN?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change 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 Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN)?
Opt for a flight from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN) that takes off before 3 PM to reduce the risk of cancellations and delays. 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 Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN) last-minute?
Last-minute fares from RDU to SUN are usually more expensive. To lock in the best rates, start searching for flights early. That said, if you're flexible with your travel dates, it's possible to land a cheap fare right before you leave.
Is it cheaper to book a RDU to SUN flight and hotel package?
Compared with arranging hotels and flights separately, booking a RDU to SUN flight and hotel package with Expedia could result in significant savings. What's more, having everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Friedman Memorial Airport (SUN)?
If you booked your RDU to SUN flight within the last 24 hours, you may be able to modify or cancel it without any 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, go to our Customer Service portal for more information.

Explore a world of travel with Expedia

*Available to One Key members.