Flight OddsWN503 DEN → SLC
Southwest Airlines · Denver, CO to Salt Lake City, UT · 42 flights observed, 2025-11-02 to 2026-01-05 · 391 mi
WN503 covers more than one route in the data window — the stats below are for DEN → SLC, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
80%
Median delay
-10 min
90th percentile
+32 min
Cancellation rate
2%
How often is WN503 on time?
Across 42 flights on DEN → SLC from 2025-11-02 to 2026-01-05, WN503 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +32 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 | 33 | 80% |
| 16-30 min | 3 | 7% |
| 31-60 min | 4 | 10% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 21 | 90% | -9 min |
| 2025-12 | 18 | 72% | +4 min |
| 2026-01 | 2 | 50% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 6 | 100% |
| Wed | 8 | 75% |
| Thu | 8 | 75% |
| Fri | 6 | 83% |
| Sat | No data | — |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…