Flight OddsUA2497 IAD → ORD
United Airlines · Washington, DC to Chicago, IL · 365 flights observed, 2025-07-01 to 2026-06-30 · 588 mi
UA2497 covers more than one route in the data window — the stats below are for IAD → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
49%
Median delay
+16 min
90th percentile
+115 min
Cancellation rate
1%
How often is UA2497 on time?
Across 365 flights on IAD → ORD from 2025-07-01 to 2026-06-30, UA2497 arrived within 15 minutes of schedule 49% of the time. The median arrival delay was +16 min, and the worst 10% of flights arrived +115 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 176 | 49% |
| 16-30 min | 69 | 19% |
| 31-60 min | 55 | 15% |
| 61-120 min | 24 | 7% |
| 2+ hrs | 35 | 10% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 30% | +94 min |
| 2025-08 | 30 | 40% | +52 min |
| 2025-09 | 30 | 73% | +7 min |
| 2025-10 | 31 | 42% | +23 min |
| 2025-11 | 30 | 60% | +37 min |
| 2025-12 | 31 | 52% | +39 min |
| 2026-01 | 30 | 43% | +27 min |
| 2026-02 | 28 | 54% | +24 min |
| 2026-03 | 29 | 69% | +37 min |
| 2026-04 | 30 | 40% | +63 min |
| 2026-05 | 30 | 43% | +26 min |
| 2026-06 | 30 | 43% | +54 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 49% |
| Tue | 53 | 53% |
| Wed | 52 | 46% |
| Thu | 51 | 43% |
| Fri | 51 | 53% |
| Sat | 52 | 58% |
| Sun | 51 | 41% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…