Flight OddsUA1803 RDU → ORD
United Airlines · Raleigh/Durham, NC to Chicago, IL · 111 flights observed, 2025-08-19 to 2025-12-17 · 646 mi
UA1803 covers more than one route in the data window — the stats below are for RDU → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-8 min
90th percentile
+11 min
Cancellation rate
0%
How often is UA1803 on time?
Across 111 flights on RDU → ORD from 2025-08-19 to 2025-12-17, UA1803 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +11 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 | 103 | 93% |
| 16-30 min | 3 | 3% |
| 31-60 min | 3 | 3% |
| 61-120 min | 1 | 1% |
| 2+ hrs | 1 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 10 | 90% | -8 min |
| 2025-09 | 27 | 96% | -11 min |
| 2025-10 | 30 | 93% | -3 min |
| 2025-11 | 29 | 90% | -3 min |
| 2025-12 | 15 | 93% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 100% |
| Tue | 18 | 94% |
| Wed | 18 | 94% |
| Thu | 17 | 94% |
| Fri | 16 | 94% |
| Sat | 10 | 80% |
| Sun | 15 | 87% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…