Flight OddsWN3678 SMF → SEA
Southwest Airlines · Sacramento, CA to Seattle, WA · 54 flights observed, 2026-01-06 to 2026-03-04 · 605 mi
WN3678 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
81%
Median delay
-4 min
90th percentile
+30 min
Cancellation rate
0%
How often is WN3678 on time?
Across 54 flights on SMF → SEA from 2026-01-06 to 2026-03-04, WN3678 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +30 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 | 44 | 81% |
| 16-30 min | 4 | 7% |
| 31-60 min | 3 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 3 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 25 | 92% | +2 min |
| 2026-02 | 25 | 76% | +9 min |
| 2026-03 | 4 | 50% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 63% |
| Tue | 9 | 100% |
| Wed | 9 | 89% |
| Thu | 8 | 88% |
| Fri | 8 | 88% |
| Sat | 5 | 100% |
| Sun | 7 | 43% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…