UA263United Airlines · LHR → DEN
live · 19m ago
Route confirmed United Airlines

UA263 LondonLHR · 14:50 DenverDEN · 17:40

UA263 by United Airlines flies from London (LHR) to Denver (DEN) for the Thu, Nov 5 departure.

Right nowEn route to Denver · off blocks 15:37 · 47 min late
En route

en route from LHR to DEN

En routeUA263 · position estimated
LHRLondonDENDenver
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 15:37 · typical taxi-out at LHR ≈ 12.7 min. No receiver coverage over open ocean.

Typical gate push+47 minmedian posted departure
Typical arrival+8 minmedian over 4 operations
Wins back in air~39 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
11-05
+47 gate · +0 arrival
10-24
+28 gate · +21 arrival
10-23
+50 gate · +15 arrival
10-22
+47 gate · +0 arrival

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

The route today

live boards
LHRLondonModerate riskLHR delay board →
DENDenverOn-time likelyDEN delay board →
LHR→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
36%Chance of 15+ min delay
2.3%Chance of cancellation
+8 minTypical airport delay in this weather

Driven mainly by DEN (Denver), currently flying VFR (visual). These figures come from both airports' records 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 →

Tomorrow at LHR

Forecast

Fri 6 Nov, local date

High11°Clikely 10°C to 12°C
Low7°Clikely 4°C to 9°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at DEN

Forecast

Fri 6 Nov, local date

High14°Clikely 11°C to 16°C
Low1°Clikely 0°C to 3°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

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 London to Denver flights today

same route · United Airlines
UA26departs 11:35

If UA263 is cancelled, this is the other United Airlines nonstop flight from London to Denver on the same day, with scheduled departure times in LHR local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA263 actually runs

Pro Flight Search has tracked every published board update for UA263 across the LHR and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min late. Based on 4 confirmed landings · 3/4 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 UA263 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
11-05LHR 14:50 15:37 (+47)DEN 17:40 (+0)
10-24LHR 14:50 15:18 (+28)DEN 17:40 18:01 (+21)
10-23LHR 14:50 15:40 (+50)DEN 17:40 17:55 (+15)
10-22LHR 14:50 15:37 (+47)DEN 17:40 (+0)

Aircraft

Recent tails: N26952, N26966, N23994.

Board clocks recorded as LHR and DEN published them.

Planning around UA263? 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: UA263 London to Denver on-time performance, measured from the LHR and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA263
How we measure this →