Is WN439 delayed?
Service date: · Scheduled departure date (America/New_York)
Arrived
4 min early
Updated
Departure
Baltimore
BWI
Actual
Scheduled 21:30
Aug 30
Arrival
Louisville
SDF
Actual
Scheduled 03:10
Aug 31
Times shown in airport local time
Flight details
Departure · UTC
- Scheduled
- Estimated
- Actual
Arrival · UTC
- Scheduled
- Estimated
- Actual
BWISDF
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 41 min late
BWI → SDF
- 32 min late
BWI → SDF
- 9 min late
BWI → SDF
- 83 min late
BWI → SDF
- 10 min late
DEN → BZN
Flight history and details
Aug 18, 2026 — Sep 17, 2026
- Observed arrivals
- 20
- Arrivals over 15 minutes late
- 4
- Observed cancellations
- 1
- Observed occurrences
- 26
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 16, 2026Arrived | Baltimore | Louisville | 41 | |
| Sep 15, 2026Arrived | Baltimore | Louisville | 32 | |
| Sep 13, 2026Arrived | Baltimore | Louisville | 9 | |
| Sep 12, 2026Arrived | Baltimore | Louisville | 83 | |
| Sep 11, 2026Arrived | Denver | Bozeman | 10 | |
| Sep 10, 2026Arrived | Denver | Bozeman | 8 | |
| Sep 8, 2026Arrived | Baltimore | Louisville | -9 | |
| Sep 7, 2026Arrived | Denver | Bozeman | -6 | |
| Sep 6, 2026Arrived | Baltimore | Louisville | -15 | |
| Sep 5, 2026Arrived | Baltimore | Louisville | -21 | |
| Sep 4, 2026Arrived | Denver | Bozeman | -13 | |
| Sep 2, 2026Cancelled | Baltimore | Louisville | Not available | Not available |
| Sep 1, 2026Arrived | Baltimore | Louisville | -21 | |
| Aug 31, 2026Arrived | Denver | Bozeman | -12 | |
| Aug 30, 2026Arrived | Baltimore | Louisville | -4 | |
| Aug 29, 2026Arrived | Baltimore | Louisville | -14 | |
| Aug 28, 2026Arrived | Denver | Bozeman | -6 | |
| Aug 27, 2026Arrived | Denver | Bozeman | 11 | |
| Aug 26, 2026Arrived | Baltimore | Louisville | -21 | |
| Aug 25, 2026Arrived | Baltimore | Louisville | 10 | |
| Aug 23, 2026Arrived | Baltimore | Louisville | 26 |