Flight OddsWN3997 MHT → BWI
Southwest Airlines · Manchester, NH to Baltimore, MD · 58 flights observed, 2025-08-05 to 2025-10-01 · 377 mi
WN3997 covers more than one route in the data window — the stats below are for MHT → BWI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-9 min
90th percentile
-1 min
Cancellation rate
0%
How often is WN3997 on time?
Across 58 flights on MHT → BWI from 2025-08-05 to 2025-10-01, WN3997 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived -1 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 | 54 | 93% |
| 16-30 min | 3 | 5% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 27 | 96% | -7 min |
| 2025-09 | 30 | 93% | -9 min |
| 2025-10 | 1 | 0% | +93 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 88% |
| Tue | 9 | 89% |
| Wed | 9 | 89% |
| Thu | 8 | 100% |
| Fri | 8 | 100% |
| Sat | 8 | 100% |
| Sun | 8 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…