Flight OddsWN4437 BWI → GSP
Southwest Airlines · Baltimore, MD to Greer, SC · 20 flights observed, 2026-06-04 to 2026-06-29 · 426 mi
WN4437 covers more than one route in the data window — the stats below are for BWI → GSP, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
47%
Median delay
+33 min
90th percentile
+99 min
Cancellation rate
5%
How often is WN4437 on time?
Across 20 flights on BWI → GSP from 2026-06-04 to 2026-06-29, WN4437 arrived within 15 minutes of schedule 47% of the time. The median arrival delay was +33 min, and the worst 10% of flights arrived +99 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 9 | 47% |
| 16-30 min | 0 | 0% |
| 31-60 min | 7 | 37% |
| 61-120 min | 1 | 5% |
| 2+ hrs | 2 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 19 | 47% | +40 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 4 | 75% |
| Fri | 4 | 50% |
| Sat | 4 | 25% |
| Sun | 3 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…