Flight OddsWN4204 DEN → SEA
Southwest Airlines · Denver, CO to Seattle, WA · 34 flights observed, 2026-04-07 to 2026-06-03 · 1,024 mi
WN4204 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
74%
Median delay
+5 min
90th percentile
+31 min
Cancellation rate
0%
How often is WN4204 on time?
Across 34 flights on DEN → SEA from 2026-04-07 to 2026-06-03, WN4204 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +31 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 | 25 | 74% |
| 16-30 min | 5 | 15% |
| 31-60 min | 3 | 9% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 14 | 86% | +1 min |
| 2026-05 | 18 | 61% | +12 min |
| 2026-06 | 2 | 100% | -6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 9 | 78% |
| Wed | 9 | 56% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | 8 | 63% |
| Sun | 8 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…