A snow-covered landscape with a river, trees, and mountains.

£66 Cheap Flights to Sun Valley

View £66 flight on Wed, 28 Oct 2026Opens in a new window

Popular airlines to Sun Valley

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 25% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to Sun Valley

Prices were available within the past 7 days and start at £66 for one-way flights and £86 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Southwest Airlines
United
Delta
Scandinavian Airlines

Frequently asked questions

What is the name of Sun Valley's airport?
Sun Valley has more than one airport, but most visitors prefer to touch down at Boise Airport (BOI).
What airport is best to fly into Sun Valley?
Make your way through the exit doors of Friedman Memorial Airport and your Sun Valley getaway will have begun! The city's main airport, it's located 21 kms (13 miles) from the centre of town.
How many airlines fly to Sun Valley?
There are a total of 7 airlines connecting Sun Valley with 24 airports across the world.
Which airlines fly to Sun Valley?
Alaska Airlines and Delta fly frequently into Sun Valley. Catching an Alaska Airlines flight from Seattle is one of the most popular ways to travel there.
How many nonstop flights are there to Sun Valley?
With approximately 588 direct flights running each week, you'll be hitting the runway in Sun Valley before you can say, "Are we there yet?"
Where are the most popular flights to Sun Valley departing from?
The most popular flights to Sun Valley take off from Seattle, Denver and Salt Lake City airports.
How long is the flight to Sun Valley Airport?
If you're going to Sun Valley from Seattle, you'll have a flight duration of 1 hour and 32 minutes. Those departing from Denver can expect to be travelling for 2 hours and 8 minutes. From Salt Lake City it's around 1 hour and 18 minutes away.
How to book the cheapest flight to Sun Valley?
Don't leave booking your flight to Sun Valley until the very last minute. That's one move savvy jet-setters use to get the best deals. Booking in advance means more options and less expensive flights. Another excellent way to nab a bargain is to shop around. If your destination has more than one airport, be sure to research the cost of flying into a less busy terminal. Finally, be ready to book quickly if you stumble on a great price. It might not stick around for too long. With a bit of know-how and a little good fortune, the perfect fare can be yours.
Do you have any tips for my flight to Sun Valley?
If you're poorly prepared, airports and flying can be challenging. But there's no need to hit the panic button just yet. Follow these handy tips and enjoy a stress-free start to your time in Sun Valley. What to pack in your hand luggage:
  • The secret to having a pain-free flight experience is to pack ahead. So, let's start with the basics: passport, travel documents, credit cards and any vital medications. Next, bring items that'll help while away those hours, like your laptop or a thrilling novel. You'll also want to bring your chargers, a quality neck pillow and a pair of noise-cancelling headphones. And of course, be sure to toss in toiletry items like a toothbrush, facial wipes and a spare change of clothes.
Do not pack the following items in your hand luggage:
  • While the list of restricted items differs between airlines, the general guide to follow is nothing sharp, flammable or explosive. This includes screwdrivers, blades, fireworks and fuel. Sporting equipment like baseball bats, and objects that could harm passengers, such as firearms and swords, can't come on board with you either.
What to wear on a flight:
  • Comfort should be your main concern when deciding what to wear on board. Loose, breathable clothing is a smart choice, as are roomy, closed-toe shoes.
  • Deep vein thrombosis (DVT) is a risk on long-distance flights. It's the result of blood clots forming due to poor circulation, so do some gentle foot and leg exercises in your seat and consider wearing compression socks.
How to get through airport security fast when flying to Sun Valley?
The secret is to be prepared before you arrive at the airport security gate. That way, you'll be boarding that plane to Sun Valley in a flash. Follow these helpful tips and get your trip off to a flying start:
  • Airport security personnel first need to see that you have a valid ID and matching boarding pass before you can proceed any further. Keep them close by.
  • Time to strip down. Well sort of. Your belt, jacket, keys and other contents of your pockets, like coins, will be required to go through the X-ray machine. Make the whole process faster by removing them before your turn.
  • For just a few minutes, you'll need to unplug from technology. Your phone, laptop and any other electronics will also need to go through the scanner.
  • Any liquids or gels, such as perfume or hand cream, that you want to bring on board need to be in containers no larger than 3.4 ounces (100 millilitres). They must also all fit inside a quart-size (one litre), zip-lock bag.
  • The right choice of footwear can save you several minutes. Boots and heavy shoes are often required to be removed and separately scanned. Slip-on sneakers are usually not.
  • Sharp items such as knives and scissors can't be taken on board. They'll be seized at security, so put them in your checked baggage.

Book with confidence

Expedia flights to Sun Valley

Searching for cheap flights to Sun Valley? No travel company presents more choices than Expedia if you're looking to compare flights to Sun Valley. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to Idaho. Expedia provides the cheapest flights to many destinations in Idaho and you may find even greater savings if you combine your flight with a hotel stay in Sun Valley.

Expedia is the largest online travel agency which means that Expedia have access to cheap flights. So make sure you check Expedia regularly for these bargain flights because the cheapest airline tickets sell out fast.

Expedia is not only free for everyone to use but it quick and easy to use. Find the lowest flight prices guaranteed and book directly through Expedia. Browse through hundreds of cheap flight offers to find the one that suits your budget by simply inputting your travel dates. Expedia will then find the cheapest flights to Sun Valley for that period and let you choose your preferred time and airline. If you need additional assistance, Expedia Customer Service representatives are available from 8am - 10pm Monday to Friday, and 9am - 10pm at weekends. Our capable staff will be able to help you with any questions regarding your Sun Valley flight, or other booking questions that may arise. When you book flights with Expedia you can rest assured that you have booked the best flight at the lowest price.

Expedia flights to Sun Valley

Travel information

Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Return price
£86

Trending flights to Sun Valley

Prices were available within the past 7 days and start at £66 for one-way flights and £86 for round trip, for the period specified. Be sure to select the 'Direct flights only' box above if you are looking for a non stop route. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines

Explore a world of travel with Expedia

*Available to Expedia members.