UA924United Airlines · IAD → LHR
live · 26m ago
Route confirmed United Airlines

UA924 WashingtonIAD · 22:05 LondonLHR · 10:40

UA924 by United Airlines flies from Washington (IAD) to London (LHR) for the Fri, Oct 23 departure.

Right nowLanded in London · today
10:15

arrived at LHR · 25 min early

⚖ UA924 typically leaves +34 and lands −7. The air wins minutes back.
Typical gate push+34 minmedian posted departure
Typical arrival−7 minmedian over 14 operations
Wins back in air~41 minmedian gate push vs arrival · how planes make up time → Cancellation1 in 15tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-23
+58 gate · −25 arrival
10-22
+26 gate · −25 arrival
10-21
+74 gate · +12 arrival
10-20
+85 gate · +41 arrival
10-19
+28 gate · −14 arrival
10-18
+13 gate · −13 arrival
10-17
+17 gate · −53 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The last 30 days

arrival outcome per operation

median arrival −7 min · 1 cancelled · 15 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
LHRLondonOn-time likelyLHR delay board →
IAD→LHRevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
31%Chance of 15+ min delay
4.3%Chance of cancellation
+4 minAvg hub delay right now

Conditions at IAD and LHR are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

How UA924 actually runs

Pro Flight Search has tracked every published board update for UA924 across the IAD and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands ~13 min early. Based on 13 confirmed landings · 12/13 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA924 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-23IAD 22:05 23:03 (+58)LHR 10:40 10:15 (−25)
10-22IAD 22:05 22:31 (+26)LHR 10:40 10:15 (−25)
10-21IAD 22:05 23:19 (+74)LHR 10:40 10:52 (+12)
10-20IAD 22:05 23:30 (+85)LHR 10:40 11:21 (+41)
10-19IAD 22:05 22:33 (+28)LHR 10:40 10:26 (−14)
10-18IAD 22:05 22:18 (+13)LHR 10:40 10:27 (−13)
10-17IAD 22:05 22:22 (+17)LHR 10:40 09:47 (−53)
10-16IAD 22:05 23:03 (+58)LHR 10:40 10:54 (+14)
10-15IAD 22:05 22:34 (+29)LHR 10:40 10:36 (−4)
10-14IAD 22:05 22:43 (+38)LHR 10:40 10:26 (−14)
10-13IAD 22:05 (+0)LHR 10:40 10:20 (−20)
10-12IAD 22:05 22:32 (+27)LHR 10:40 10:33 (−7)
10-11CANCELLED
10-10IAD 22:05 23:08 (+63)LHR 10:40 10:34 (−6)
10-09IAD 22:05 22:39 (+34)LHR 10:40 13:21 (+161)

Aircraft

Recent tails: N649UA, N644UA, N656UA, N648UA.

Board clocks recorded as IAD and LHR published them.

Planning around UA924? 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 — UA924 Washington to London on-time performance, measured from the IAD and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/UA924
How we measure this →