Flight OddsUA1237 ORD → PHX
United Airlines · Chicago, IL to Phoenix, AZ · 16 flights observed, 2026-04-02 to 2026-04-27 · 1,440 mi
UA1237 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
47%
Median delay
+17 min
90th percentile
+101 min
Cancellation rate
6%
How often is UA1237 on time?
Across 16 flights on ORD → PHX from 2026-04-02 to 2026-04-27, UA1237 arrived within 15 minutes of schedule 47% of the time. The median arrival delay was +17 min, and the worst 10% of flights arrived +101 min or later. 6% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 7 | 47% |
| 16-30 min | 1 | 7% |
| 31-60 min | 5 | 33% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 15 | 47% | +40 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 33% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 4 | 50% |
| Fri | 4 | 50% |
| Sat | No data | — |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…