Cheap flights to Idaho from Seattle

Round trips from Seattle from $256. Cheapest dates, deal ratings and where to book.

• Boise: $256, 2026-10-07 to 2026-10-10
• Idaho Falls: $339, 2026-10-06 to 2026-10-09

Nearby

• Oregon
• Montana
• Washington
• Wyoming
• Nevada
• Utah
• California
• Colorado