Flight OddsWN856 DEN → SEA
Southwest Airlines · Denver, CO to Seattle, WA · 18 flights observed, 2025-11-22 to 2026-01-04 · 1,024 mi
WN856 covers more than one route in the data window — the stats below are for DEN → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
0 min
90th percentile
+42 min
Cancellation rate
0%
How often is WN856 on time?
Across 18 flights on DEN → SEA from 2025-11-22 to 2026-01-04, WN856 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was 0 min, and the worst 10% of flights arrived +42 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 | 12 | 67% |
| 16-30 min | 3 | 17% |
| 31-60 min | 2 | 11% |
| 61-120 min | 1 | 6% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 4 | 25% | +14 min |
| 2025-12 | 11 | 73% | +11 min |
| 2026-01 | 3 | 100% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 100% |
| Tue | 3 | 67% |
| Wed | 1 | 0% |
| Thu | No data | — |
| Fri | 3 | 67% |
| Sat | 5 | 60% |
| Sun | 3 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…