UA918United Airlines · IAD → LHR
live · 7m ago
Route confirmed United Airlines

UA918 WashingtonIAD · 18:30 LondonLHR · 06:55

UA918 by United Airlines flies from Washington (IAD) to London (LHR) for the Wed, Sep 9 departure.

Right nowLanded in London · today
06:39

arrived at LHR · 16 min early

⚖ UA918 typically leaves +58 and lands +4. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+39+78+117 min
09-09
+25 gate · −16 arrival
09-08
+29 gate · −16 arrival
09-07
+0 gate · −15 arrival
09-06
+0 gate · −22 arrival
09-05
+58 gate · +0 arrival
09-04
+117 gate · +58 arrival
09-03
+0 gate · +56 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 +4 min · 0 cancelled · 14 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
33%Chance of 15+ min delay
3.5%Chance of cancellation
+2 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.

Other Washington to London flights today

same route · United Airlines
UA924departs 22:15

If UA918 is cancelled, this is the other United Airlines nonstop flight from Washington to London on the same day, with scheduled departure times in IAD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA918 actually runs

Pro Flight Search has tracked every published board update for UA918 across the IAD and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 14 confirmed landings · 9/14 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 UA918 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
09-09IAD 18:30 18:55 (+25)LHR 06:55 06:39 (−16)
09-08IAD 18:35 19:04 (+29)LHR 06:55 06:39 (−16)
09-07IAD 18:48 (+0)LHR 06:55 06:40 (−15)
09-06IAD 19:00 (+0)LHR 06:55 06:33 (−22)
09-05IAD 18:30 19:28 (+58)LHR 06:55 (+0)
09-04IAD 18:30 20:27 (+117)LHR 06:55 07:53 (+58)
09-03IAD 20:22 (+0)LHR 06:55 07:51 (+56)
09-02IAD 18:30 18:55 (+25)LHR 06:55 06:30 (−25)
09-01IAD 18:30 19:37 (+67)LHR 06:55 07:21 (+26)
08-31IAD 18:30 20:10 (+100)LHR 06:55 07:48 (+53)
08-30IAD 18:30 19:48 (+78)LHR 06:55 07:03 (+8)
08-29IAD 18:30 19:03 (+33)LHR 06:55 06:44 (−11)
08-28IAD 18:30 19:38 (+68)LHR 06:55 06:59 (+4)
08-27IAD 18:30 22:16 (+226)LHR 06:55 09:45 (+170)

Aircraft

Recent tails: N57016, N76021, N227UA, N216UA.

Board clocks recorded as IAD and LHR published them.

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 — UA918 Washington to London on-time performance, measured from the IAD and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/UA918
How we measure this →