Is UA4477 delayed?
Service date: · Scheduled departure date (America/Chicago)
Arrived
28 min late
Updated
Departure
Chicago
ORD
Actual
Scheduled 06:59
Aug 23
Arrival
Knoxville
TYS
Actual
Scheduled 13:57
Aug 23
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
ORDTYS
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 21 min early
MSN → ORD
- 5 min early
MSN → ORD
- 20 min early
MSN → ORD
- 37 min early
MSN → ORD
- 4 min early
MSN → ORD
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 14
- Arrivals over 15 minutes late
- 2
- Observed cancellations
- 1
- Observed occurrences
- 22
Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Sep 17, 2026Cancelled | Madison | Chicago | Not available | Not available |
| Sep 16, 2026Arrived | Madison | Chicago | -21 | |
| Sep 15, 2026Arrived | Madison | Chicago | -5 | |
| Sep 14, 2026Arrived | Madison | Chicago | -20 | |
| Sep 13, 2026Arrived | Madison | Chicago | -37 | |
| Sep 12, 2026Arrived | Madison | Chicago | -4 | |
| Sep 11, 2026Arrived | Madison | Chicago | -19 | |
| Sep 10, 2026Arrived | Madison | Chicago | 15 | |
| Sep 9, 2026Arrived | Madison | Chicago | 12 | |
| Sep 8, 2026Arrived | Madison | Chicago | -7 | |
| Sep 7, 2026Arrived | Chicago | Birmingham | 6 | |
| Sep 6, 2026Arrived | Chicago | Knoxville | 10 | |
| Sep 5, 2026Arrived | Chicago | Knoxville | 39 | |
| Sep 4, 2026Arrived | Chicago | Traverse City | 1 | |
| Aug 23, 2026Arrived | Chicago | Knoxville | 28 |