Direct flights from Boise to Seattle BOI → SEA
Alaska Airlines and Delta Air Lines operate nonstop flights from Boise (BOI) to Seattle (SEA). The nonstop flight takes around ~0h 48m, covering 398 miles (641 km). Updated 28 June 2026.
BOI
→
SEA
Round trip
1 adult
Economy
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Alaska Airlines
AS
Delta Air Lines
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Frequently asked questions
Is there a direct flight from Boise to Seattle?
Yes, Alaska Airlines and Delta Air Lines operate nonstop flights from Boise (BOI) to Seattle (SEA).
Which airlines fly direct from Boise to Seattle?
Alaska Airlines, Delta Air Lines operate nonstop flights from Boise to Seattle.
How long is the flight from Boise to Seattle?
The nonstop flight from Boise to Seattle takes ~0h 48m (approximately 641 km).