AA4121American Airlines · GRB → ORD
live · 4m ago
Route confirmed American Airlines

AA4121 Green BayGRB ChicagoORD

AA4121 by American Airlines flies from Green Bay (GRB) to Chicago (ORD).

Right nowNext departure today Operates Sat Sun
08:41

scheduled from GRB

The route today

live boards
GRBGreen BayOn-time likelyGRB delay board →
ORDChicagoHigh riskORD delay board →
GRB→ORDevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow at Chicago

Forecast

Mon 16 Nov, local date

High11°Clikely 10°C to 13°C
Low−1°Clikely −3°C to 1°C
  • 35% chance of fog

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.

How AA4121 actually runs

Pro Flight Search has tracked every published board update for AA4121 across the GRB and ORD boards: schedule changes, gate pushes and actual clocks. Combined risk score: 76.3/100. Based on airport operations, weather, and cached board history at GRB and ORD.

The verdict above is that record speaking, so it reflects how AA4121 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around AA4121? 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: AA4121 Green Bay to Chicago on-time performance, measured from the GRB and ORD airport boards.

Canonical URL
https://proflightsearch.com/flight/AA4121
How we measure this →