WN266
Southwest Airlines flight 266 — Seattle (SEA) to Sacramento (SMF)
On time
79%
Avg delay
~43 min
Cancelled
0.9%
WN266 is fairly reliable, though delays happen. About 79% of departures arrive on time. When delays happen, the most common cause is late-arriving aircraft.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 89% | 0.0% | 28 min |
| 2026-07 | 75% | 0.0% | 59 min |
| 2026-07 | 75% | 0.0% | 36 min |
| 2026-07 | 100% | 0.0% | 0 min |
| 2026-06 | 57% | 0.0% | 44 min |
| 2026-06 | 75% | 0.0% | 18 min |
| 2026-06 | 75% | 0.0% | 26 min |
| 2026-06 | 100% | 0.0% | 0 min |
| 2026-06 | 100% | 0.0% | 0 min |
| 2026-05 | 88% | 0.0% | 174 min |
| 2026-05 | 97% | 3.3% | 36 min |
| 2026-04 | 100% | 0.0% | 0 min |
Top delay cause
late-arriving aircraft
Based on 1,816 tracked departures
Flying WN266? Get a free briefing.
Weather, delays, and what to expect — sent to your inbox before your flight.
Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.