Flight OddsUA1851 ORD → DCA
United Airlines · Chicago, IL to Washington, DC · 27 flights observed, 2025-07-01 to 2025-07-31 · 612 mi
UA1851 covers more than one route in the data window — the stats below are for ORD → DCA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-2 min
90th percentile
+41 min
Cancellation rate
0%
How often is UA1851 on time?
Across 27 flights on ORD → DCA from 2025-07-01 to 2025-07-31, UA1851 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +41 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 | 23 | 85% |
| 16-30 min | 0 | 0% |
| 31-60 min | 2 | 7% |
| 61-120 min | 2 | 7% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 85% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 75% |
| Tue | 5 | 100% |
| Wed | 5 | 100% |
| Thu | 5 | 80% |
| Fri | 4 | 50% |
| Sat | No data | — |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…