UA4557United Airlines · COU → ORD
live · just now
Route confirmed United Airlines

UA4557 ColumbiaCOU ChicagoORD · 07:53

UA4557 by United Airlines flies from Columbia (COU) to Chicago (ORD).

Right nowNext departure today Operates daily
08:25

scheduled from COU

Typical arrival−8 minmedian over 6 operations

Where the minutes go

last 6 operations · gate push → arrival
0+30+60+90 min
10-24
−30 arrival
10-23
−11 arrival
10-22
−4 arrival
10-21
−8 arrival
10-20
+7 arrival
10-19
−8 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 −8 min · 0 cancelled · 6 operations tracked

The route today

live boards
COUColumbiaOn-time likelyCOU delay board →
ORDChicagoOn-time likelyORD delay board →
COU→ORDevery carrier, schedules and on-time historyRoute intelligence →

Tomorrow at ORD

Forecast

Tue 3 Nov, local date

High22°Clikely 20°C to 23°C
Low17°Clikely 14°C to 19°C
  • 86% chance of rain
  • Gusts to 32 kt

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 UA4557 actually runs

Pro Flight Search has tracked every published board update for UA4557 across the COU and ORD boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min early. Based on 6 confirmed landings · 6/6 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA4557 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-24COU ORD 07:53 07:23 (−30)
10-23COU ORD 07:53 07:42 (−11)
10-22COU ORD 07:53 07:49 (−4)
10-21COU ORD 07:53 07:45 (−8)
10-20COU ORD 07:53 08:00 (+7)
10-19COU ORD 07:53 07:45 (−8)

Board clocks recorded as COU and ORD published them.

Planning around UA4557? 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: UA4557 Columbia to Chicago on-time performance, measured from the COU and ORD airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4557
How we measure this →