United AirlinesUA92% on time
Flights UA1279 06:00 Mo Th Fr Su · UA1101 08:00 daily · UA2087 10:20 daily · UA452 11:37 Fr Su
live
Direct flights from Denver (DEN) to Washington (IAD): 7 nonstop departures observed each week across 1 airline. 86% of the last 14 operated flights arrived within 15 minutes of schedule. The median arrival is 9 minutes early. No cancellations were recorded across the 14 tracked flights. The nonstop covers 2,332 km, an estimated 3 hours 29 minutes in the air. Measured by Pro Flight Search from live flight boards at Denver and Washington. Updated 10 September 2026 at 11:37 UTC.
DEN
Denver
disrupted · +70
IAD
Washington
smooth · +0
2,332 km · ~3h 29m est.
Runs reliable · 1 airline · 7x weekly · nonstop
86% on time
of the last 14 operated DEN → IAD flights arrived within 15 minutes
Median arrival delay is −9 min. 0 of 14 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−9 minacross the last 14 operated legs
Flight time~3h 29mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 14
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomes09-091I498arrived+22
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at DEN: 40% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
How the Denver to Washington route actually runs
Pro Flight Search records official board updates for nonstop DEN to IAD flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Denver (DEN) to Washington (IAD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/DEN-IAD
DEN to IAD questions
Is DEN–IAD running on time right now?
Some delays possible. The departure side at DEN is the weaker end, route health score 53/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on DEN–IAD?
Operators schedule morning departures around 06:00 and evening departures around 17:50 from DEN. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAD delay card to confirm conditions when you'd arrive.
How long is the flight from DEN to IAD?
Great-circle distance is 2,332 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 195–230 min gate-to-gate on this route.
How often does DEN–IAD fly?
United Airlines runs the route with about 59 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
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