Nonstop route
Seattle to Denver nonstop
Yes — United, Alaska, Southwest, Delta and Frontier fly SEA to DEN nonstop year-round — about 21× daily.
SEASeattle
✈
DENDenver
21× daily146.5 flights a week
Year-round146.5/wk Jun vs 96.6/wk Jan
$125–$250typical one-way · median $175
1,024miles nonstop
Affiliate disclosure
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Fares are what people actually paid: half of the 10,782 tickets in the US DOT fare survey for this route sold between $125 and $250 one way, median $175. 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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