Flight OddsWN2156 SEA → DEN
Southwest Airlines · Seattle, WA to Denver, CO · 17 flights observed, 2025-10-02 to 2025-10-30 · 1,024 mi
WN2156 covers more than one route in the data window — the stats below are for SEA → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
29%
Median delay
+19 min
90th percentile
+39 min
Cancellation rate
0%
How often is WN2156 on time?
Across 17 flights on SEA → DEN from 2025-10-02 to 2025-10-30, WN2156 arrived within 15 minutes of schedule 29% of the time. The median arrival delay was +19 min, and the worst 10% of flights arrived +39 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 | 5 | 29% |
| 16-30 min | 9 | 53% |
| 31-60 min | 2 | 12% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 17 | 29% | +36 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 40% |
| Fri | 4 | 25% |
| Sat | No data | — |
| Sun | 4 | 0% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…