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

Cheap Flights to Sun Valley , ID from CA $137

View CA $137 flight on Tue, Dec 29, 2026Opens in a new window

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How much is the cheapest flight to Sun Valley?

Prices were available within the past 7 days and start at CA $137 for one-way flights and CA $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Delta
American Airlines
United
Southwest 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 kilometres 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

Find Your Flights to Sun Valley BOI

Cheap flights to Sun Valley (BOI)

Get started finding a cheap flight to Sun Valley on Expedia by either choosing a deal on this page or using the search bar to enter your travel dates, origin airport, and whether you want a roundtrip or one-way airfare. You can filter for flexibility, number of stops, airline, and departure/arrival times to find the best flight for you.

We recommend using the ‘Flexible Dates’ calendar at the top of the page to see the price of plane tickets on the surrounding dates. This allows you to pick the cheapest days to fly if your trip allows flexibility and score cheap flight deals to Sun Valley.

Roundtrip prices range from CA $209 - CA $475, and one-ways Sun Valley start as low as CA $137.

Be aware that choosing a non-stop flight can sometimes be more expensive while saving you time. And routes with connections may be available at a cheaper rate.

Airlines that fly to Sun Valley (BOI)

You have several options for which airline you choose to travel with to Sun Valley. There are 10 airlines flying into BOI: Delta, Alaska Airlines, American Airlines, Southwest Airlines, United. 

Cheap plane tickets may be available from different airlines at different times and with unique terms. It’s best to understand the details of each airline’s offer before judging its value.

For example, if you plan to check a bag or bring a carry-on, check whether the cheap airfare deal includes a baggage allowance. If not, verify whether the baggage fee is higher than the difference of other airline plane ticket deals offering free checked/carry-on baggage in exchange for a slightly higher airfare. 

Additionally, your preferred frequent flyer membership programmes may influence your choice of cheap airline. Expedia allows you to enter your membership numbers during checkout to earn points from your airline and Expedia Rewards—all while getting a great deal and planning all your travel on one online platform.

Find the best deals

At Expedia, we source many flight deals from multiple providers, so you can easily find the best deals that are right for you. A great strategy for getting the best deals can be to make sure you book and travel at optimal times. Airfare to Sun Valley (BOI) varies throughout the year based on seasonal demand. You’ll see the lowest rates for roundtrips to BOI in October and in December for one-ways.

Cancellation & flexibility

To change or cancel eligible flights, go to ‘My Trips’ and navigate to your itinerary. If you booked within the last 24 hours, you might be able to cancel your flight for free. Learn more about flight changes or cancellations from our customer service portal. Some plane tickets are available with no change fees, which you can filter for during your search.

Find Your Flights to Sun Valley BOI

Travel information

Destination airport
Boise
Destination airport IATA code
BOI
Destination city name
Boise
Roundtrip price
CA $209

Trending flights to Sun Valley

Prices were available within the past 7 days and start at CA $137 for one-way flights and CA $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta

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