Flight OddsUA642 IAD → PHX
United Airlines · Washington, DC to Phoenix, AZ · 138 flights observed, 2025-08-21 to 2026-02-11 · 1,956 mi
UA642 covers more than one route in the data window — the stats below are for IAD → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-12 min
90th percentile
+19 min
Cancellation rate
1%
How often is UA642 on time?
Across 138 flights on IAD → PHX from 2025-08-21 to 2026-02-11, UA642 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +19 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 119 | 87% |
| 16-30 min | 10 | 7% |
| 31-60 min | 4 | 3% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 4 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 8 | 88% | -12 min |
| 2025-09 | 21 | 95% | -12 min |
| 2025-10 | 6 | 100% | -24 min |
| 2025-11 | 30 | 80% | -6 min |
| 2025-12 | 31 | 87% | 0 min |
| 2026-01 | 30 | 87% | +10 min |
| 2026-02 | 11 | 82% | -17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 21 | 81% |
| Tue | 20 | 90% |
| Wed | 20 | 80% |
| Thu | 20 | 95% |
| Fri | 20 | 90% |
| Sat | 17 | 88% |
| Sun | 19 | 84% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…