Is UA4557 delayed?
No delay reported — UA4557 is expected in Chicago at 07:28 on Sep 30, 25 min early.
Usually on time: arrived within 15 min of schedule on 18 of the last 19 flights.
25 min early
This update may be out of date. Check with your airline.
Update time unavailable
Departure
Columbia
COU
Actual
Scheduled 06:15
Sep 30
Arrival
Chicago
ORD
Estimated
Scheduled 07:53
Sep 30
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
In the air. The market on this flight settles on the airport’s recorded arrival.
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
- Not available
Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 5 min early
Columbia → Chicago
- 18 min early
Columbia → Chicago
- On schedule (5 min behind)
Columbia → Chicago
- 16 min early
Columbia → Chicago
- 39 min early
Columbia → Chicago
Is UA4557 usually late?
Observation window: Aug 31, 2026 – Sep 30, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
At the airports today
Chicago (ORD) departures
- Left more than 15 min late
- 16 of 42
- Cancelled today
- 3
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 29, 2026Arrived | Columbia | Chicago | -5 | |
| Sep 28, 2026Arrived | Columbia | Chicago | -18 | |
| Sep 27, 2026Arrived | Columbia | Chicago | 5 | |
| Sep 26, 2026Arrived | Columbia | Chicago | -16 | |
| Sep 25, 2026Arrived | Columbia | Chicago | -39 | |
| Sep 24, 2026Arrived | Columbia | Chicago | -36 | |
| Sep 23, 2026Arrived | Dulles | Hebron | -17 | |
| Sep 22, 2026Arrived | Dulles | Hebron | -3 | |
| Sep 21, 2026Arrived | Dulles | Hebron | 26 | |
| Sep 18, 2026Arrived | Dulles | Hebron | -8 | |
| Sep 17, 2026Arrived | Dulles | Hebron | -23 | |
| Sep 16, 2026Arrived | Dulles | Hebron | -4 | |
| Sep 14, 2026Arrived | Dulles | Hebron | -19 | |
| Sep 11, 2026Arrived | Dulles | Hebron | 0 | |
| Sep 10, 2026Arrived | Dulles | Hebron | -12 | |
| Sep 9, 2026Arrived | Dulles | Hebron | -21 | |
| Sep 8, 2026Arrived | Dulles | Hebron | -26 | |
| Sep 7, 2026Arrived | Greenville | Dulles | -22 | |
| Sep 6, 2026Arrived | State College | Dulles | -20 |
Email me if UA4557 runs late
We email you if your next UA4557 flight in the coming day is more than 15 minutes late, cancelled or diverted. Alerts last 30 days. No account needed.