Flight OddsUA1850 PDX → ORD
United Airlines · Portland, OR to Chicago, IL · 52 flights observed, 2025-09-25 to 2026-05-20 · 1,739 mi
UA1850 covers more than one route in the data window — the stats below are for PDX → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+7 min
90th percentile
+31 min
Cancellation rate
0%
How often is UA1850 on time?
Across 52 flights on PDX → ORD from 2025-09-25 to 2026-05-20, UA1850 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +7 min, and the worst 10% of flights arrived +31 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 | 36 | 69% |
| 16-30 min | 10 | 19% |
| 31-60 min | 4 | 8% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 6 | 50% | +8 min |
| 2025-10 | 25 | 60% | +12 min |
| 2026-04 | 1 | 100% | -1 min |
| 2026-05 | 20 | 85% | +19 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 7 | 86% |
| Wed | 7 | 57% |
| Thu | 8 | 75% |
| Fri | 8 | 38% |
| Sat | 8 | 88% |
| Sun | 7 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…