Flight OddsWN4277 SMF → SEA
Southwest Airlines · Sacramento, CA to Seattle, WA · 14 flights observed, 2025-10-02 to 2025-10-31 · 605 mi
WN4277 covers more than one route in the data window — the stats below are for SMF → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
71%
Median delay
+3 min
90th percentile
+49 min
Cancellation rate
0%
How often is WN4277 on time?
Across 14 flights on SMF → SEA from 2025-10-02 to 2025-10-31, WN4277 arrived within 15 minutes of schedule 71% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +49 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 | 10 | 71% |
| 16-30 min | 2 | 14% |
| 31-60 min | 0 | 0% |
| 61-120 min | 2 | 14% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 14 | 71% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 80% |
| Fri | 5 | 80% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…