UA4866United Airlines · ROA → IAD
live · 12m ago
Route confirmed United Airlines

UA4866 RoanokeROA · 20:05 WashingtonIAD · 21:19

UA4866 by United Airlines flies from Roanoke (ROA) to Washington (IAD) for the Mon, Aug 17 departure.

Right nowLanded in Washington · today
20:50

arrived at IAD · 29 min early

⚖ UA4866 typically leaves +13 and lands −26. The air wins minutes back.
Typical gate push+13 minmedian posted departure
Typical arrival−26 minmedian over 8 operations
Wins back in air~39 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
08-18
+41 gate · −29 arrival
08-17
+2 gate · −29 arrival
08-16
+7 gate · −26 arrival
08-15
−2 gate · −42 arrival
08-14
+33 gate · +0 arrival
08-13
+13 gate · −14 arrival
08-12
+5 gate · −29 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 −26 min · 0 cancelled · 8 operations tracked

The route today

live boards
ROARoanokeOn-time likelyROA delay board →
IADWashingtonOn-time likelyIAD delay board →
ROA→IADevery carrier, schedules and on-time historyRoute intelligence →

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 UA4866 actually runs

Pro Flight Search has tracked every published board update for UA4866 across the ROA and IAD boards: schedule changes, gate pushes and actual clocks. Usually lands ~26 min early. Based on 8 confirmed landings · 8/8 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 UA4866 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
08-18ROA 20:05 20:46 (+41)IAD 21:19 20:50 (−29)
08-17ROA 20:05 20:07 (+2)IAD 21:19 20:50 (−29)
08-16ROA 20:05 20:12 (+7)IAD 21:19 20:53 (−26)
08-15ROA 20:05 20:03 (−2)IAD 21:19 20:37 (−42)
08-14ROA 20:05 20:38 (+33)IAD 21:19 (+0)
08-13ROA 20:05 20:18 (+13)IAD 21:19 21:05 (−14)
08-12ROA 20:05 20:10 (+5)IAD 21:19 20:50 (−29)
08-11ROA 20:05 20:46 (+41)IAD 21:19 21:28 (+9)

Aircraft

Recent tails: N16183, N14198, N21197, N33182.

Board clocks recorded as ROA and IAD 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 — UA4866 Roanoke to Washington on-time performance, measured from the ROA and IAD airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4866
How we measure this →