UA4021United Airlines · IAD → CLT
live · 33m ago
Route confirmed United Airlines

UA4021 WashingtonIAD CharlotteCLT

UA4021 by United Airlines flies from Washington (IAD) to Charlotte (CLT).

Right nowNext departure today Operates daily
14:38

scheduled from IAD

The route today

live boards
IADWashingtonModerate riskIAD delay board →
CLTCharlotteModerate riskCLT delay board →
IAD→CLTevery 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
2.5%Chance of cancellation
+3 minTypical airport delay in this weather

Conditions at IAD and CLT are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 IAD

Forecast

Wed 11 Nov, local date

High20°Clikely 17°C to 23°C
Low5°Clikely 3°C to 8°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 CLT

Forecast

Wed 11 Nov, local date

High22°Clikely 20°C to 24°C
Low7°Clikely 6°C to 10°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 Washington to Charlotte flights today

same route · United Airlines
UA3634departs 09:00
UA4517departs 12:43
UA6239departs 12:43
UA2854departs 17:15
UA6209departs 17:20
UA251departs 22:20

If UA4021 is cancelled, these are the other United Airlines nonstop flights from Washington to Charlotte on the same day, with scheduled departure times in IAD 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 UA4021 actually runs

Pro Flight Search has tracked every published board update for UA4021 across the IAD and CLT boards: schedule changes, gate pushes and actual clocks. Combined risk score: 34.2/100. Based on airport operations, weather, and cached board history at IAD and CLT.

The verdict above is that record speaking, so it reflects how UA4021 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA4021? 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: UA4021 Washington to Charlotte on-time performance, measured from the IAD and CLT airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4021
How we measure this →