British AirwaysBA73% on time
Flights BA216 17:45 daily · BA290 19:15 Mo We Th Fr Su · BA1290 21:30 Tu We Sa · BA292 22:25 daily
live
Direct flights from Washington (IAD) to London (LHR): 21 nonstop departures observed each week across 3 airlines. 75% of the last 20 operated flights arrived within 15 minutes of schedule. The median arrival is 15 minutes early. 1 of the 20 tracked flights was cancelled. The nonstop covers 5,902 km, an estimated 8 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and London. Updated 9 September 2026 at 15:58 UTC.
IAD
Washington
smooth · +11
LHR
London
busy · +20
5,902 km · ~8h 04m est.
Runs mixed · 3 airlines · 21x weekly · nonstop
75% on time
of the last 20 operated IAD → LHR flights arrived within 15 minutes
Median arrival delay is −15 min. 1 of 20 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−15 minacross the last 20 operated legs
Flight time~8h 04mestimated from route distance
Weekly departures21x3 direct airlines on the leg
Cancelled5.0%recent route rate · 1 of 20
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
British AirwaysUnited AirlinesVirgin Atlantic
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 outcomesActual 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 IAD: 33% odds of a 15+ minute delay and around +2 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 Washington to London route actually runs
Pro Flight Search records official board updates for nonstop IAD to LHR 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 — Washington (IAD) to London (LHR) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAD-LHR
IAD to LHR questions
Is IAD–LHR running on time right now?
Mostly on schedule. The arrival side at LHR is the weaker end, route health score 79/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAD–LHR?
Operators schedule evening departures around 17:45 from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the LHR delay card to confirm conditions when you'd arrive.
How long is the flight from IAD to LHR?
Great-circle distance is 5,902 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 447–536 min gate-to-gate on this route.
How often does IAD–LHR fly?
3 carriers operate this route, around 43 flights a week between them. Compare carrier days and times in the airline list above.
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