Outbound
1 hour 20 minutes
Return
1 hour 15 minutes
Daily Flights
5-7
Airlines
3
Timezone note
Seattle is 1 hour behind Boise (Pacific vs Mountain Time).
About this route
Boise to Seattle flights
Boise to Seattle connects Idaho's capital with the Pacific Northwest's largest city. Alaska Airlines leads with the most frequencies from its SEA hub, and Southwest and Delta add competition. The route serves tech workers, outdoor enthusiasts, and business travelers.
The 1-hour timezone shift means a morning Boise departure arrives in Seattle at roughly the same clock time. The flight is quick — about 1 hour 20 minutes — making it easy for same-day business trips between these growing Western cities.
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FAQ
Frequently asked questions.
How long is the BOI to SEA flight?
About 1 hour 20 minutes in both directions.
Which airlines fly this route?
Alaska Airlines, Southwest, and Delta all serve BOI-SEA.
What's the time difference?
Seattle is 1 hour behind Boise — Pacific vs Mountain Time.
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