Flight OddsUA321 ORD → PHX
United Airlines · Chicago, IL to Phoenix, AZ · 206 flights observed, 2025-10-27 to 2026-05-20 · 1,440 mi
UA321 covers more than one route in the data window — the stats below are for ORD → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-8 min
90th percentile
+38 min
Cancellation rate
0%
How often is UA321 on time?
Across 206 flights on ORD → PHX from 2025-10-27 to 2026-05-20, UA321 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -8 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 | 171 | 83% |
| 16-30 min | 12 | 6% |
| 31-60 min | 10 | 5% |
| 61-120 min | 8 | 4% |
| 2+ hrs | 5 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 5 | 100% | -17 min |
| 2025-11 | 30 | 83% | +5 min |
| 2025-12 | 31 | 74% | +18 min |
| 2026-01 | 31 | 71% | +7 min |
| 2026-02 | 28 | 93% | -11 min |
| 2026-03 | 31 | 84% | -2 min |
| 2026-04 | 30 | 83% | -1 min |
| 2026-05 | 20 | 95% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 30 | 73% |
| Tue | 30 | 93% |
| Wed | 30 | 90% |
| Thu | 29 | 83% |
| Fri | 29 | 72% |
| Sat | 29 | 83% |
| Sun | 29 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…