Nonstop route
Kailua-Kona to Seattle nonstop
Yes — Alaska and Delta fly KOA to SEA nonstop year-round — about 4× daily.
KOAKailua-Kona
✈
SEASeattle
4× daily27.8 flights a week
Year-round27.8/wk Jun vs 28/wk Jan
$250–$450typical one-way · median $325
2,688miles nonstop
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Fares are what people actually paid: half of the 1,897 tickets in the US DOT fare survey for this route sold between $250 and $450 one way, median $325. That survey runs a couple of quarters behind, so treat it as the shape of the route's pricing rather than today's quote.
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