Nonstop route
Denver to Washington nonstop
Yes — United and Southwest fly DEN to IAD nonstop year-round — about 9× daily.
DENDenver
✈
IADWashington
9× daily61.1 flights a week
Year-round61.1/wk Jun vs 60.5/wk Jan
$150–$325typical one-way · median $200
1,452miles nonstop
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Fares are what people actually paid: half of the 6,698 tickets in the US DOT fare survey for this route sold between $150 and $325 one way, median $200. 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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