Flight OddsWN1266 BOS → MDW
Southwest Airlines · Boston, MA to Chicago, IL · 33 flights observed, 2026-03-05 to 2026-04-06 · 861 mi
WN1266 covers more than one route in the data window — the stats below are for BOS → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
50%
Median delay
+15 min
90th percentile
+74 min
Cancellation rate
9%
How often is WN1266 on time?
Across 33 flights on BOS → MDW from 2026-03-05 to 2026-04-06, WN1266 arrived within 15 minutes of schedule 50% of the time. The median arrival delay was +15 min, and the worst 10% of flights arrived +74 min or later. 9% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 14 | 50% |
| 16-30 min | 7 | 25% |
| 31-60 min | 3 | 11% |
| 61-120 min | 3 | 11% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 23 | 48% | +23 min |
| 2026-04 | 5 | 60% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 3 | 33% |
| Wed | 4 | 0% |
| Thu | 3 | 67% |
| Fri | 5 | 60% |
| Sat | 5 | 80% |
| Sun | 4 | 75% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…