Flight OddsWN3786 MDW → BOS
Southwest Airlines · Chicago, IL to Boston, MA · 35 flights observed, 2025-07-01 to 2025-08-04 · 861 mi
WN3786 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
62%
Median delay
+9 min
90th percentile
+57 min
Cancellation rate
3%
How often is WN3786 on time?
Across 35 flights on MDW → BOS from 2025-07-01 to 2025-08-04, WN3786 arrived within 15 minutes of schedule 62% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +57 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 21 | 62% |
| 16-30 min | 5 | 15% |
| 31-60 min | 5 | 15% |
| 61-120 min | 2 | 6% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 57% | +21 min |
| 2025-08 | 4 | 100% | 0 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 5 | 60% |
| Wed | 5 | 60% |
| Thu | 5 | 80% |
| Fri | 5 | 60% |
| Sat | 4 | 100% |
| Sun | 5 | 20% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…