UA3811United Airlines · ORD → ATL
live · 31m ago
Route confirmed United Airlines

UA3811 ChicagoORD AtlantaATL

UA3811 by United Airlines flies from Chicago (ORD) to Atlanta (ATL).

Right nowNext departure today Operates daily
12:30

scheduled from ORD

The route today

live boards
ORDChicagoOn-time likelyORD delay board →
ATLAtlantaOn-time likelyATL delay board →
ORD→ATLevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
32%Chance of 15+ min delay
1.2%Chance of cancellation
+6 minTypical airport delay in this weather

Conditions at ORD and ATL 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 Chicago

Forecast

Wed 11 Nov, local date

High13°Clikely 10°C to 16°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 ATL

Forecast

Wed 11 Nov, local date

High21°Clikely 18°C to 23°C
Low10°Clikely 9°C to 12°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 Chicago to Atlanta flights today

same route · United Airlines
UA411departs 06:59
UA5785departs 07:05
UA202departs 09:00
UA2684departs 10:31
UA356departs 14:30
UA1398departs 18:15

If UA3811 is cancelled, these are the other United Airlines nonstop flights from Chicago to Atlanta on the same day, with scheduled departure times in ORD 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 UA3811 actually runs

Pro Flight Search has tracked every published board update for UA3811 across the ORD and ATL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 1.6/100. Based on airport operations, weather, and cached board history at ORD and ATL.

The verdict above is that record speaking, so it reflects how UA3811 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around UA3811? 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: UA3811 Chicago to Atlanta on-time performance, measured from the ORD and ATL airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3811
How we measure this →