Flight OddsWN3987 STL → ATL
Southwest Airlines · St. Louis, MO to Atlanta, GA · 13 flights observed, 2026-03-08 to 2026-04-05 · 484 mi
WN3987 covers more than one route in the data window — the stats below are for STL → ATL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-7 min
90th percentile
+23 min
Cancellation rate
0%
How often is WN3987 on time?
Across 13 flights on STL → ATL from 2026-03-08 to 2026-04-05, WN3987 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +23 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 9 | 69% |
| 16-30 min | 3 | 23% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 11 | 64% | +11 min |
| 2026-04 | 2 | 100% | -11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 4 | 75% |
| Wed | 4 | 75% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | 5 | 60% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…