American Airlines
Is AA4321 delayed?
No, AA4321 landed in Louisville 14 min early, at 13:04 on Oct 31 (as of Oct 31, 17:04 UTC).
Usually on time: arrived within 15 min of schedule on 10 of the last 10 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
14 min early
Official source · Updated
Departure
Washington
DCA
Actual
Scheduled 11:54
Oct 31
Arrival
Louisville
SDF
Actual
Scheduled 13:18
Oct 31
Times shown in airport local time
Service date: · Scheduled departure date (America/New_York)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
20 min early
Official source · Updated
Departure
Louisville
SDF
Actual
Scheduled 14:23
Oct 31
Arrival
Washington
DCA
Actual
Scheduled 15:38
Oct 31
Times shown in airport local time
Service date: · Scheduled departure date (America/Kentucky/Louisville)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 20 min early
Louisville → Washington
- 14 min early
Washington → Louisville
- 25 min early
Miami → Raleigh/Durham
- 14 min early
Miami → Raleigh/Durham
- 8 min early
Louisville → Washington
Is AA4321 usually late?
Period: Oct 15, 2026 – Nov 14, 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. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Washington (DCA) departures
- Left more than 15 min late
- 11 of 39
- Cancelled today
- 53
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Oct 31, 2026Arrived | Louisville | Washington | -20 | |
| Oct 31, 2026Arrived | Washington | Louisville | -14 | |
| Oct 28, 2026Arrived | Miami | Raleigh/Durham | -25 | |
| Oct 27, 2026Arrived | Miami | Raleigh/Durham | -14 | |
| Oct 24, 2026Arrived | Louisville | Washington | -8 | |
| Oct 24, 2026Arrived | Washington | Louisville | -6 | |
| Oct 21, 2026Arrived | Miami | Raleigh/Durham | -15 | |
| Oct 20, 2026Arrived | Miami | Raleigh/Durham | -24 | |
| Oct 17, 2026Arrived | Louisville | Washington | 13 | |
| Oct 17, 2026Arrived | Washington | Louisville | -23 |