Flight OddsUA1100 ORD → PDX
United Airlines · Chicago, IL to Portland, OR · 35 flights observed, 2025-07-03 to 2025-08-18 · 1,739 mi
UA1100 covers more than one route in the data window — the stats below are for ORD → PDX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
97%
Median delay
-11 min
90th percentile
+4 min
Cancellation rate
0%
How often is UA1100 on time?
Across 35 flights on ORD → PDX from 2025-07-03 to 2025-08-18, UA1100 arrived within 15 minutes of schedule 97% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +4 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 | 33 | 97% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 3% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 20 | 100% | -12 min |
| 2025-08 | 14 | 93% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 100% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 7 | 100% |
| Fri | 7 | 100% |
| Sat | 7 | 100% |
| Sun | 6 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…