$752 Cheap Flights from Copenhagen (CPH) to Sun Valley (SUN)

View $752 flight on Fri, Jul 31, 2026Opens in a new window

Popular airlines from Copenhagen Airport, Kastrup (CPH) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from Copenhagen to Sun Valley (CPH-SUN)

Prices were available within the past 7 days and start at $752 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN) cost?
Grab a cheap one-way flight from $752 or cheap return flight from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN) 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 Kastrup Airport (CPH) to Friedman Memorial Airport (SUN)?
Flying in can help you save, as it's the cheapest month for flights between CPH and SUN. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN)?
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 the carrier with the cheapest CPH to SUN flight.
How many flights per day from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN)?
Direct flights from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CPH to SUN?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can vary based on the time of year, airline 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 Kastrup Airport (CPH) to Friedman Memorial Airport (SUN)?
To arrive at Friedman Memorial Airport (SUN) on schedule, book a flight that leaves Kastrup Airport (CPH) 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 Kastrup Airport (CPH) to Friedman Memorial Airport (SUN) last-minute?
Last-minute fares from CPH to SUN are generally more expensive. To secure the lowest rates, start searching for flights well ahead of time. That said, if your travel plans are flexible, it's possible to score a cheap fare right before your journey.
Is it cheaper to book a CPH to SUN flight and hotel package?
Compared with arranging hotels and flights separately, booking a CPH to SUN flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one place takes the hassle out of travel planning. Simply secure your flights and choose from our extensive range of stays, then customize your trip with other add-ons like tours and car rentals.
Can I cancel or change the date of my flight from Kastrup Airport (CPH) to Friedman Memorial Airport (SUN)?
Generally, it's possible to cancel or reschedule your CPH to SUN flight. However, for bookings made more than 24 hours ago, additional fees 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 details on our Customer Service portal.

Travel information

Travel information

Origin airport
Kastrup
Destination airport
Friedman Memorial
Distance
4919 mi

Book with confidence

Book with confidence

Copenhagen to Sun Valley Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Copenhagen 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 Copenhagen 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 Copenhagen to Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $752 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 Copenhagen 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 Copenhagen 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.

 

Copenhagen to Sun Valley Flights

Explore a world of travel with Expedia

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*Available to One Key members.