United AirlinesUA
Flights UA2435 13:44 daily
live
Direct flights from Miami (MIA) to Washington (IAD): 7 nonstop departures observed each week across 1 airline. 40% of the last 5 operated flights arrived within 15 minutes of schedule. The median arrival is 16 minutes late. No cancellations were recorded across the 5 tracked flights. The nonstop covers 1,486 km, an estimated 2 hours 24 minutes in the air. Measured by Pro Flight Search from live flight boards at Miami and Washington. Updated 10 September 2026 at 16:23 UTC.
MIA
Miami
busy · +19
IAD
Washington
smooth · +0
1,486 km · ~2h 24m est.
Runs rough · 1 airline · 7x weekly · nonstop
40% on time
of the last 5 operated MIA → IAD flights arrived within 15 minutes
Median arrival delay is +16 min. 0 of 5 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+16 minacross the last 5 operated legs
Flight time~2h 24mestimated from route distance
Weekly departures7x1 direct airline on the leg
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 outcomes09-07LKF16arrived+67
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 MIA and IAD: 37% odds of a 15+ minute delay and around +12 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 Miami to Washington route actually runs
Pro Flight Search records official board updates for nonstop MIA 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 — Miami (MIA) to Washington (IAD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/MIA-IAD
MIA to IAD questions
Is MIA–IAD running on time right now?
Mostly on schedule. The departure side at MIA is the weaker end, route health score 78/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from MIA to IAD?
Great-circle distance is 1,486 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 135–157 min gate-to-gate on this route.
How often does MIA–IAD fly?
United Airlines runs the route with about 7 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at MIA and arrival-side delay at IAD, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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