Flight OddsUA1815 ORD → DCA
United Airlines · Chicago, IL to Washington, DC · 196 flights observed, 2025-08-19 to 2026-03-04 · 612 mi
UA1815 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
87%
Median delay
-10 min
90th percentile
+26 min
Cancellation rate
2%
How often is UA1815 on time?
Across 196 flights on ORD → DCA from 2025-08-19 to 2026-03-04, UA1815 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +26 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 166 | 87% |
| 16-30 min | 9 | 5% |
| 31-60 min | 7 | 4% |
| 61-120 min | 4 | 2% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 12 | 92% | -9 min |
| 2025-09 | 29 | 86% | +3 min |
| 2025-10 | 31 | 97% | -10 min |
| 2025-11 | 28 | 79% | +15 min |
| 2025-12 | 31 | 77% | +5 min |
| 2026-01 | 30 | 93% | +5 min |
| 2026-02 | 26 | 85% | -2 min |
| 2026-03 | 4 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 28 | 79% |
| Tue | 28 | 86% |
| Wed | 26 | 92% |
| Thu | 28 | 93% |
| Fri | 27 | 81% |
| Sat | 28 | 89% |
| Sun | 26 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…