Flight OddsWN4825 MDW → BOS
Southwest Airlines · Chicago, IL to Boston, MA · 18 flights observed, 2025-11-22 to 2026-01-04 · 861 mi
WN4825 covers more than one route in the data window — the stats below are for MDW → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-18 min
90th percentile
+19 min
Cancellation rate
0%
How often is WN4825 on time?
Across 18 flights on MDW → BOS from 2025-11-22 to 2026-01-04, WN4825 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -18 min, and the worst 10% of flights arrived +19 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 | 15 | 83% |
| 16-30 min | 2 | 11% |
| 31-60 min | 1 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 4 | 75% | -12 min |
| 2025-12 | 11 | 82% | -8 min |
| 2026-01 | 3 | 100% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 3 | 67% |
| Wed | 1 | 100% |
| Thu | No data | — |
| Fri | 3 | 100% |
| Sat | 5 | 80% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…