Flight OddsWN519 DEN → SEA
Southwest Airlines · Denver, CO to Seattle, WA · 56 flights observed, 2025-08-07 to 2026-01-05 · 1,024 mi
WN519 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
76%
Median delay
+3 min
90th percentile
+35 min
Cancellation rate
2%
How often is WN519 on time?
Across 56 flights on DEN → SEA from 2025-08-07 to 2026-01-05, WN519 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +35 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 42 | 76% |
| 16-30 min | 7 | 13% |
| 31-60 min | 4 | 7% |
| 61-120 min | 2 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 18 | 67% | +11 min |
| 2025-09 | 21 | 71% | +11 min |
| 2025-11 | 11 | 91% | +1 min |
| 2025-12 | 4 | 100% | +8 min |
| 2026-01 | 1 | 100% | -20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 11 | 73% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 10 | 80% |
| Fri | 13 | 77% |
| Sat | 8 | 75% |
| Sun | 13 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…