DAY → IADDayton to Washington

live

Direct flights from Dayton (DAY) to Washington (IAD): 7 nonstop departures observed each week across 1 airline. 94% of the last 16 operated flights arrived within 15 minutes of schedule. The median arrival is 24 minutes early. No cancellations were recorded across the 16 tracked flights. The nonstop covers 590 km, an estimated 1 hour 15 minutes in the air. Measured by Pro Flight Search from live flight boards at Dayton and Washington. Updated 15 September 2026 at 19:18 UTC.

DAY Dayton tracking
IAD Washington smooth · +0
590 km · ~1h 15m est.
dep bank 10:22–19:487x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
94% on time

of the last 16 operated DAY → IAD flights arrived within 15 minutes

Median arrival delay is −24 min. 0 of 16 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−24 minacross the last 16 operated legs
Flight time~1h 15mestimated from route distance
Weekly departures7x1 direct airline on the leg
Cancelled0.0%recent route rate · 0 of 16

The week

scheduled departures · origin local time
06121824
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 days
United AirlinesUA94% on time

Flights UA4550 10:22 Mo Tu We Th Fr Su · UA4187 14:50 daily · UA4188 19:48 daily

History

operated legs · board outcomes
09-15UA4187arrived−22
09-15UA4188arrived−25
09-14UA4187arrived−29
09-14UA4188arrived−21
09-14UA4550arrived−24
09-13UA4187arrived−24
09-13UA4188arrived−17
09-12UA4187arrived−21
09-12UA4188arrived+54
09-11UA4187arrived−12
09-11UA4188arrived−38
09-10UA4187arrived−27
09-10UA4188arrived−40
09-10UA4550arrived−33
09-09UA4187arrived−33
09-09UA4188arrived+2

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
DAYDayton tracking Full DAY delay board →
IADWashington +0 min smooth 🌤 few clouds · S 5 kt Full IAD delay board →

How the Dayton to Washington route actually runs

Pro Flight Search records official board updates for nonstop DAY 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 — Dayton (DAY) to Washington (IAD) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/DAY-IAD
How we measure this →

DAY to IAD questions

Is DAY–IAD running on time right now?

Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.

Morning or evening flight on DAY–IAD?

Operators schedule morning departures around 10:22 and evening departures around 19:48 from DAY. 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 DAY to IAD?

Great-circle distance is 590 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 72–81 min gate-to-gate on this route.

How often does DAY–IAD fly?

United Airlines runs the route with about 20 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.