$154 Cheap Flights to Ketchum, ID

Flights to Ketchum at a glance

Traveling to Ketchum is a breeze. You can easily find cheap flights to Ketchum by exploring options from full-service and low-cost airlines. Compare travel times and select flights to Sun Valley that fit your budget and schedule, ensuring you’re ready to discover the city's renowned attractions and neighborhoods.

• Major airports near Ketchum: Friedman Memorial Airport (SUN), Twin Falls Airport (TWF)
• Closest airport to Ketchum: Friedman Memorial Airport, SUN (around 12 miles)
• Flights per week: 480+ flights arriving across Ketchum airports
• Number of airlines that fly to Ketchum: around 5+ carriers

Popular airports near Ketchum

Ketchum is a dynamic city perfect for ski enthusiasts and adventure seekers. Visitors flock here for its stunning scenery and outdoor sports opportunities. Conveniently, Ketchum is accessible through two major airports, making travel plans easy with various airport shuttles available to get you to your destination.

• Friedman Memorial Airport (SUN): Situated in Blaine County, Idaho, approximately 12 miles from Ketchum, this airport offers both domestic and international flights, linking around 50 domestic cities and 3 international destinations. Travelers can opt for enhanced seating options, such as first class, premium economy, and business class, depending on their chosen airline and route. Key airlines operating here include United, Delta, and American Airlines.
• Twin Falls Airport (TWF): Located in Twin Falls County, Idaho, about 83 miles from Ketchum, this airport primarily serves domestic routes, connecting to over 10 cities nationwide. Passengers have the option to upgrade to premium economy for a more comfortable journey, based on their selected airline and route. Notable airlines at this airport include Delta and Breeze.

Top routes to Ketchum

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

Cheapest routes to Ketchum

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

• Delta: Operating flights to Twin Falls Airport (TWF) and Friedman Memorial Airport (SUN), Delta represents about 49% of arrivals in Ketchum. The typical one-way fare hovers around $290, with options for premium economy and first class service depending on the route.
• United: Providing service to Friedman Memorial Airport (SUN), United accounts for roughly 36% of the arrivals to Ketchum. Passengers can expect an average one-way fare of about $280, with first class available on select routes.
• American Airlines: This carrier services Friedman Memorial Airport (SUN) and contributes approximately 6% of the arrivals to Ketchum. The average one-way fare is around $310, making it a competitive option for travelers.
• Alaska Airlines: With flights to Friedman Memorial Airport (SUN), Alaska Airlines makes up about 6% of Ketchum's arrivals. Travelers can find one-way fares averaging $260, with business class and first class service on certain routes.
• Aeromexico: Serving Friedman Memorial Airport (SUN), Aeromexico accounts for around 2% of arrivals to Ketchum. The average one-way fare is approximately $280, providing travelers with another option for their journey.

Best time to fly to Ketchum

The most popular months for travelers to fly to Ketchum are January, February, and March, when peak temperatures in Ketchum 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 Ketchum

Getting some of the best deals on flights to Ketchum 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 Ketchum 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 Ketchum flight with Expedia. Just select your frequent flyer program and enter your program number when confirming your booking.

*For members. Select hotels.

Arriving in Ketchum

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

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Ketchum, with options including free hotel shuttles and private rides, which can be arranged in advance.
• Car rental: Renting a car in Ketchum is a good option if you plan to explore and sightsee beyond the city. Browse cheap car rentals in Ketchum 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 Ketchum

• Warm Springs: Warm Springs is located around the area of Ketchum and is a haven for outdoor enthusiasts. This neighborhood offers thrilling skiing, making it a popular destination during the winter months. Visitors can enjoy activities at nearby ski resorts and fields, and revel in the breathtaking sights of Bald Mountain. For those interested in culture, the Sun Valley Center for the Arts and Gallery DeNovo provide enriching experiences. The picturesque landscape, including mountains and lakes, enhances the adventure and relaxation opportunities available in Warm Springs.
• River Run: River Run is located around the area of Ketchum and is a prime spot for skiing, sports, and outdoor adventures. With easy access to ski lifts and fields, travelers can hit the slopes with ease. The stunning views of Bald Mountain and the surrounding canyon add to the allure of this neighborhood. Art lovers can explore the Sun Valley Center for the Arts and Gallery DeNovo, enriching their visit with local culture. River Run’s combination of natural beauty and recreational activities makes it a must-visit destination.
• Weyyakin Ranch: Weyyakin Ranch is located around the area of Ketchum and is perfect for those seeking adventure and recreation. This neighborhood offers access to ski fields and a variety of outdoor activities. Visitors can explore the nearby national state park and forests, providing ample opportunities for hiking and nature walks. Additionally, the stunning Bald Mountain and local art venues such as the Sun Valley Center for the Arts and Gallery DeNovo enrich the cultural experience here. Weyyakin Ranch is an ideal choice for travelers looking to immerse themselves in nature and creativity.

Tips for short-haul flights to Ketchum

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

• Pack light and skip checked bags—with budget airlines, traveling with just a carry-on is often more cost-effective. Maximize space by choosing mini toiletries, wearing your largest clothing items, and coordinating your outfits ahead of time. This strategy also helps you bypass the wait at baggage claim upon arrival.
• Bring your own entertainment—many short-haul flights might not provide in-flight entertainment options. To keep yourself entertained, download TV shows, movies, music, or podcasts beforehand, and consider bringing a book. Remember to charge your devices fully before you board.
• Arrive at the airport in plenty of time—even for short or domestic flights, it's wise to arrive at least 1.5 to 2 hours prior to departure, taking into account potential traffic and security lines.
• Bring your own snacks and water—pack some snacks and a refillable water bottle to stay hydrated and save money at the airport.

Tips for long-haul flights to Ketchum

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

• Select your seat in advance—for long flights, choosing your seat is essential for comfort. Full-service airlines often allow free seat selection once online check-in opens, typically 24–48 hours prior to your flight. Some airlines provide the option to select seats even earlier.
• Arrive at the airport in plenty of time—make sure to arrive at least 3 hours before departure for international flights to accommodate check-in, security, and immigration processes.
• Relax at the airport—if you have extra time, take the opportunity to explore the shops, grab a coffee, or unwind at the gate or in a departure lounge if you have access. Airport Wi-Fi is generally 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 sleep or stay awake during the flight according to the local time at your arrival destination to help minimize jet lag.

Tips to find the cheapest flights to Ketchum

The cheapest day to fly

Get started finding a cheap flight to Ketchum 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

December is the cheapest month to fly to Ketchum. 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 Ketchum. 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 Ketchum, 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 Ketchum

The lowest price for round-trip flights to Ketchum in 2026 starts from $232, while one-way tickets start from from $154. 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 Ketchum. If you have a preferred departure time or airline, you can use the handy filters to customize your search.

The cheapest airlines flying to Ketchum

Alaska Airlines, Delta, American Airlines, United are just some of the airlines that can typically offer cheap tickets to Ketchum. 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 Ketchum and countless more destinations worldwide.

The most affordable airports to fly into

To view the cheapest airports to fly into for Ketchum, 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 Ketchum. 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 Ketchum 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 Ketchum

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 Ketchum.

Stopover savings

The cheapest tickets to Ketchum are sometimes those with a stopover. Book one of these flights, and you'll change planes at an airport en route to Ketchum. 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 Ketchum 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 Ketchum. Simply download the free Expedia app to your smart device and activate Ketchum 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 Ketchum. 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.