Nonstop route
Denver to Washington nonstop
Yes — Frontier and United fly DEN to DCA nonstop year-round — about 4× daily.
DENDenver
✈
DCAWashington
4× daily25.7 flights a week
Year-round25.7/wk Jun vs 25.1/wk Jan
$100–$275typical one-way · median $150
1,476miles nonstop
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Fares are what people actually paid: half of the 2,906 tickets in the US DOT fare survey for this route sold between $100 and $275 one way, median $150. 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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