Flight OddsWN3678 MDW → BOS
Southwest Airlines · Chicago, IL to Boston, MA · 64 flights observed, 2025-11-02 to 2026-01-05 · 861 mi
WN3678 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
-7 min
90th percentile
+29 min
Cancellation rate
2%
How often is WN3678 on time?
Across 64 flights on MDW → BOS from 2025-11-02 to 2026-01-05, WN3678 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +29 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 52 | 83% |
| 16-30 min | 5 | 8% |
| 31-60 min | 4 | 6% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 27 | 89% | -6 min |
| 2025-12 | 31 | 74% | +8 min |
| 2026-01 | 5 | 100% | -4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 100% |
| Tue | 9 | 67% |
| Wed | 9 | 67% |
| Thu | 8 | 100% |
| Fri | 9 | 89% |
| Sat | 9 | 89% |
| Sun | 10 | 70% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…