Nonstop flights from Seattle to Idaho Falls
Alaska Airlines flies this route twice a day.
SEASeattle-Tacoma International
565 mi · 14 flights a week
IDAIdaho Falls Regional
When they leave
Seattle time12:28p8:05pFirst departure 12:28 PM, last 8:05 PM
Two in the afternoon, 12:28 PM to 12:45 PM, then two in the evening, 7:50 PM to 8:05 PM.
Every flight
Earliest first
Schedules last checked Sep 19, 2026. Times are local.
Flying from Seattle to Idaho Falls
Alaska Airlines is the only airline flying nonstop from Seattle to Idaho Falls, twice a day on the Embraer 175.
The first arrival in Idaho Falls is at 3:20 PM and the last at 10:56 PM. The flight covers 565 miles.
Flying back, Idaho Falls to Seattle has 14 nonstop flights a week.
Return flights
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Schedules as of Oct 9, 2026.