Flight OddsUA1639 ORD → IAD
United Airlines · Chicago, IL to Washington, DC · 6 flights observed, 2025-12-04 to 2025-12-15 · 588 mi
UA1639 covers more than one route in the data window — the stats below are for ORD → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
67%
Median delay
+3 min
90th percentile
+42 min
Cancellation rate
0%
How often is UA1639 on time?
Across 6 flights on ORD → IAD from 2025-12-04 to 2025-12-15, UA1639 arrived within 15 minutes of schedule 67% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +42 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 | 4 | 67% |
| 16-30 min | 0 | 0% |
| 31-60 min | 2 | 33% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 6 | 67% | +10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 2 | 50% |
| Fri | 2 | 50% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…