Lowest Priced Flights to Sun Valley on Alaska Airlines starting at $89*
Most popular flights to Sun Valley on Alaska Airlines.*
Seattle (SEA)to
Sun Valley (SUN)Seattle (SEA)to
Sun Valley (SUN)Seattle (SEA)to
Sun Valley (SUN)*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Top offers for Sun Valley one-way flights.*
From | To | Fare Type | Dates | Price | |
|---|---|---|---|---|---|
| Seattle (SEA) | Sun Valley (SUN) | One-way | Main | Depart: May 28, 2025 | From $154 Seen: 14 hours ago | |
| Seattle (SEA) | Sun Valley (SUN) | One-way | Main | Depart: Aug 23, 2025 | From $214 Seen: 17 hours ago | |
| Seattle (SEA) | Sun Valley (SUN) | One-way | Main | Depart: Jul 27, 2025 | From $214 Seen: 17 hours ago |
*Prices have been available for one-way trips within the last 48 hours and may not be currently available. Fares listed may be Saver fares which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.
Plan a trip to Sun Valley
The brainchild of the chairman of Union Pacific Railroad who wanted to create a destination ski resort to increase ridership, Sun Valley encompasses the Sun Valley ski resort and the nearby town of Ketchum. The 1932 Winter Olympics and celebrity promotions helped make Sun Valley a popular destination for athletes and travelers alike (including Clark Gable and Ernest Hemingway.) Hike the rugged trails and take in the breathtaking views of Sawtooth National Recreation Area in spring, summer, and autumn. After a satisfying day of good walking, treat yourself to a dip in one of the 13 soothing hot springs of Sun Valley - bring drinking water and a towel with you. Drop by the Sun Valley Center for the Arts for a lecture by a famous author, a class on color, or a play performed by the Center's own Company of Fools.
View airport information for Sun Valley (SUN)