$51 Cheap Flights to Sun Valley, ID

Flights to Sun Valley at a glance

Traveling to Sun Valley is easy—simply choose from full-service or budget airlines, compare travel times, and find the best flight to Sun for your schedule and budget. Whether you're seeking the cheapest flight or a direct flight, you're set to explore the city's iconic sights and neighborhoods.

• Major airports near Sun Valley: Friedman Memorial Airport (SUN), Twin Falls Airport (TWF)
• Closest airport to Sun Valley: Friedman Memorial Airport, SUN (around 13 miles)
• Flights per week: 480+ flights arriving across Sun Valley airports
• Number of airlines that fly to Sun Valley: around 5+ carriers

Popular airports near Sun Valley

Sun Valley is a vibrant destination ideal for skiing, sports, and adventure vacations. Travelers are drawn to its stunning outdoor scenery and exciting activities. The city is conveniently accessible through two major airports, including Sun Valley Friedman Memorial Airport, which offers daily shuttles for easy transportation.

• Friedman Memorial Airport (SUN): Situated in Blaine County, Idaho, approximately 13 miles from Sun Valley, this airport facilitates both domestic and international travel. It connects to around 50 cities in the U.S. and 3 international destinations. Passengers can opt for upgraded service in first class, premium economy, or business class for enhanced comfort, depending on the airline and route. Notable airlines operating here include United, Delta, and American Airlines.
• Twin Falls Airport (TWF): Positioned in Twin Falls County, Idaho, about 84 miles from Sun Valley, this airport offers domestic flights linking to more than 10 cities throughout the nation. Travelers have the option to upgrade to premium economy class for a more comfortable journey, based on the route and airline. Key carriers at this airport include Delta and Breeze.

Top routes to Sun Valley

• Los Angeles (LAX) to Sun Valley (TWF/SUN), with one-way flights starting at around $130
• Seattle (SEA) to Sun Valley (TWF/SUN), with one-way tickets available from around $85
• San Francisco (SFO) to Sun Valley (SUN), with one-way tickets available from around $110
• Guadalajara (GDL) to Sun Valley (SUN), with one-way fares starting at around $230
• Boston (BOS) to Sun Valley (SUN), with one-way flights starting at around $170

Cheapest routes to Sun Valley

• Las Vegas (LAS) to Sun Valley (TWF/SUN), with cheap one-way fares from around $50
• Orange County (SNA) to Sun Valley (TWF/SUN), with cheap one-way fares from around $55
• Seattle (SEA) to Sun Valley (TWF/SUN), with cheap one-way fares from around $85
• Phoenix (PHX) to Sun Valley (TWF/SUN), with low one-way fares from around $110
• Ontario (ONT) to Sun Valley (TWF/SUN), with cheap one-way fares from around $110

*Flight times and fares vary by season and availability and are based on one-way routes

Top airlines with flights to Sun Valley

• Delta: Operating flights to Twin Falls Airport (TWF) and Friedman Memorial Airport (SUN), Delta handles roughly 49% of Sun Valley's arrivals. The typical one-way fare is around $290, with premium cabin services possibly including premium economy and first class based on the route.
• United: Offering service to Friedman Memorial Airport (SUN), United is responsible for about 36% of the arrivals in Sun Valley. Passengers can expect average one-way fares of around $280, with first class available as a premium cabin option depending on the route.
• American Airlines: Providing flights to Friedman Memorial Airport (SUN), American Airlines accounts for roughly 6% of Sun Valley's arrivals. The average fare for a one-way ticket is approximately $310.
• Alaska Airlines: Serving Friedman Memorial Airport (SUN), Alaska Airlines makes up about 6% of arrivals to Sun Valley. One-way fares generally average around $260, with business class and first class available as premium seating options on selected routes.
• Aeromexico: Operating flights to Friedman Memorial Airport (SUN), Aeromexico contributes to about 2% of the arrivals in Sun Valley. The average one-way fare is around $280.

Best time to fly to Sun Valley

The most popular months for travelers to fly to Sun Valley are January, February, and March, when peak temperatures in Sun Valley can reach up to 26.4°F in March. If you prefer quieter travel, consider September, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 55.6°F. For better deals, October usually offers the lowest average one-way fare around $275, roughly 11% cheaper than the yearly average. Looking for additional cheaper months to fly? September, January, and March offer average one-way fares of around $290, making them good options for flexible travelers.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

How to save money on a flight to Sun Valley

Getting some of the best deals on flights to Sun Valley is all about timing and flexibility. Here are some key tips to help you save:

1. Compare flight options—use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
2. Set up price alerts—as an Expedia member you can use Price Tracking to receive notifications when flight prices change.
3. Bundle and save—book a flight and unlock a hotel deal on Expedia*, or explore our Sun Valley hotel and flight deals.
4. Think about luggage-nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your baggage allowance before confirming your booking to avoid excess baggage fees at the airport.
5. Earn miles—you can earn airline miles when you book your Sun Valley flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Sun Valley

Sun Valley welcomes travelers through its range of transport options based on price, convenience, and proximity. Here's how to reach Sun Valley efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Sun Valley, with options including free hotel shuttles and private rides, which can be arranged in advance.
• Car rental: Renting a car in Sun Valley is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Sun Valley on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.

Where to stay in Sun Valley

• Elkhorn: Elkhorn is located in the area of Sun Valley and is a charming village that draws travelers looking for ski, sports, and adventure experiences. Visitors can easily access ski fields and resorts, making it an ideal destination for winter sports enthusiasts. The stunning natural landscape includes nearby mountains and lakes, as well as the beautiful national state park. Key points of interest in Elkhorn include the Ernest Hemingway Memorial, perfect for culture lovers, the contemporary art at Gilman Contemporary, and engaging exhibitions at the Sun Valley Center for the Arts.
• Elkhorn Village: Elkhorn Village is located in the area of Sun Valley and offers a delightful retreat for those seeking skiing, sports, and adventurous activities. Similar to its neighbor, it provides convenient access to ski resorts and fields, catering to winter sports aficionados. Surrounded by picturesque mountains and tranquil lakes, visitors can also explore the national state park nearby. Highlights in Elkhorn Village include the culturally significant Ernest Hemingway Memorial, the artistic flair at Gilman Contemporary, and the inspiring performances at the Sun Valley Center for the Arts.
• Weyyakin Ranch: Weyyakin Ranch is located around the area of Sun Valley and is a serene neighborhood perfect for those drawn to skiing, sports, and outdoor adventures. With easy access to ski fields and recreational areas, it’s a fantastic spot for winter activities. The natural beauty of nearby forests, lakes, and the national state park enhances its appeal. Travelers should not miss the breathtaking views from Bald Mountain, the artistic offerings at the Sun Valley Center for the Arts, and the unique exhibitions at Gallery DeNovo, making Weyyakin Ranch a cultural haven.

Tips for short-haul flights to Sun Valley

For quick getaways, efficiency is key. Here is how to make your short-haul journey smoother:

• Pack light and skip checked bags—when flying with budget airlines, it’s often more economical to travel with just a carry-on. Maximize space by using mini toiletries, wearing your heaviest clothing, and planning your outfits strategically. This also helps you bypass the wait at baggage claim upon arrival.
• Bring your own entertainment—many short-haul flights may lack in-flight entertainment options. Download your favorite TV shows, movies, music, or podcasts ahead of time, and consider bringing a book to keep yourself occupied. Remember to fully charge your devices before you board.
• Arrive at the airport in plenty of time—even for short or domestic flights, it’s advisable to arrive at least 1.5 to 2 hours prior to departure, taking into account traffic and security lines.
• Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money while at the airport.

Tips for long-haul flights to Sun Valley

Flying long-haul sometimes requires extra planning to ensure a comfortable journey:

• Select your seat in advance—for longer flights, choosing your seat is essential for comfort. Full-service airlines often provide complimentary seat selection once online check-in begins, typically 24–48 hours before your flight. Some airlines may allow you to select your seat even earlier.
• Arrive at the airport in plenty of time—aim to be at the airport at least 3 hours prior to departure for international flights to accommodate check-in, security, and immigration procedures.
• Relax at the airport—if you have some extra time, take the opportunity to browse the shops, enjoy a coffee, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is usually free and available.
• Adjust to the new time zone mid-flight—begin syncing your body clock by changing your watch and sleep schedule to align with your destination's time zone. Try to either sleep or stay awake on the flight according to the local time of your arrival to help minimize jet lag.

Tips to find the cheapest flights to Sun Valley

The cheapest day to fly

Get started finding a cheap flight to Sun Valley on Expedia by either choosing a deal on this page or entering into the search bar your travel dates, origin airport, and whether you want 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.

The cheapest month to fly

January is the cheapest month to fly to Sun Valley. This coincides with the low season when fewer people travel. Whichever month you travel in, though, be sure to book at least a month in advance if you want to score cheap tickets to Sun Valley. ARC's data shows that domestic flights booked 28 days or more before departure are typically 24% cheaper than those booked last minute.

The most affordable time to book a flight

Typically, a Sunday can be the cheapest time to book a flight to Sun Valley, according to ARC’s data. On average, you could save between 6% and 13% by booking on a Sunday instead of a Friday, which is the most expensive day to make a reservation.

The cheapest round-trip tickets to Sun Valley

The lowest price for round-trip flights to Sun Valley in 2026 starts from $85, while one-way tickets start from from $51. Expedia's effective search tool is one of the best ways to find a budget airfare. Simply enter your dates, and within seconds, it'll show you a vast selection of the cheapest flights to Sun Valley. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Sun Valley

Allegiant Air, Alaska Airlines, United, Southwest Airlines, Delta, American Airlines are just some of the airlines that can typically offer cheap tickets to Sun Valley. You can find their most affordable flights by using the “airline” search filter and then sorting prices from low to high. As a trusted partner of the world's leading airlines, Expedia offers you some of the best airfare deals to Sun Valley and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Sun Valley, simply order your search results from lowest to highest price. Expedia's search tool compares flight prices for all airports close to your destination, so you don't have to manually search them one by one to find the cheapest flight to Sun Valley. If you have a preferred place to fly into, take advantage of the “arrival airport” filter to narrow down your search on Expedia.

Save with a package

With Expedia's amazing package deals, you could save hundreds of dollars by booking your Sun Valley plane tickets together with your accommodations, car rental, or activities. Just select the search wizard's “package” option to view some of the cheapest deals. Look out for the green savings label to see how much you're saving.

Date flexibility for the cheapest flights to Sun Valley

If you can be flexible with your travel dates, it's a good idea to broaden your search by comparing prices on different days. This will open up more options, meaning you could uncover a less expensive flight to Sun Valley.

Stopover savings

The cheapest tickets to Sun Valley are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Sun Valley. While the overall travel time might be longer than a non-stop flight, you may decide it's worth it for the money saved.

Get Expedia's Price Drop Protection

Price Drop Protection means that if your flight gets cheaper after booking, you'll be credited the difference*. This gives you peace of mind that you're getting one of the cheapest flights to Sun Valley for your chosen departure. Expedia's Price Drop Protection is available for a small fee but is free to One Key Gold and Platinum tier members.

*Terms apply.

Use our Price Tracking feature

Expedia's Price Tracking feature is another great tool that removes the guesswork from finding cheap flights to Sun Valley. Simply download the free Expedia app to your smart device and activate Sun Valley flight price alerts for your travel dates. There's even a price predictor tool that uses historical data to indicate the best time to book, giving you peace of mind that you'll nab the lowest prices.

Book with Expedia

As well as Price Drop Protection and Price Tracking, Expedia's close partnership with a vast selection of the world's leading airlines means you're sure to find cheap flights to Sun Valley. Plus, the One Key rewards program lets you earn real cash rewards on most bookings that you can use to save money on future trips. Best of all, it's free to join, and members often unlock exclusive discounts, too.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.