Flight OddsUA511 DCA → ORD
United Airlines · Washington, DC to Chicago, IL · 113 flights observed, 2026-03-05 to 2026-06-30 · 612 mi
UA511 covers more than one route in the data window — the stats below are for DCA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
79%
Median delay
-4 min
90th percentile
+58 min
Cancellation rate
4%
How often is UA511 on time?
Across 113 flights on DCA → ORD from 2026-03-05 to 2026-06-30, UA511 arrived within 15 minutes of schedule 79% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +58 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 85 | 79% |
| 16-30 min | 4 | 4% |
| 31-60 min | 9 | 8% |
| 61-120 min | 3 | 3% |
| 2+ hrs | 7 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 21 | 71% | +45 min |
| 2026-04 | 28 | 68% | +7 min |
| 2026-05 | 31 | 84% | +14 min |
| 2026-06 | 28 | 89% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 17 | 76% |
| Tue | 16 | 81% |
| Wed | 16 | 75% |
| Thu | 15 | 87% |
| Fri | 17 | 71% |
| Sat | 12 | 92% |
| Sun | 15 | 73% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…