Flight OddsSouthwest Airlines · Houston, TX to Salt Lake City, UT · 11 flights observed, 2026-06-05 to 2026-06-29 · 1,214 mi
WN4420 covers more than one route in the data window — the stats below are for HOU → SLC, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4420 on time?
Across 11 flights on HOU → SLC from 2026-06-05 to 2026-06-29, WN4420 arrived within 15 minutes of schedule 36% of the time. The median arrival delay was +31 min, and the worst 10% of flights arrived +38 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 | 4 | 36% |
| 16-30 min | 1 | 9% |
| 31-60 min | 5 | 45% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 11 | 36% | +33 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 3 | 67% |
| Fri | 4 | 25% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…