Flight OddsUA1738 IAD → ORD
United Airlines · Washington, DC to Chicago, IL · 361 flights observed, 2025-07-01 to 2026-06-30 · 588 mi
UA1738 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
80%
Median delay
-6 min
90th percentile
+53 min
Cancellation rate
2%
How often is UA1738 on time?
Across 361 flights on IAD → ORD from 2025-07-01 to 2026-06-30, UA1738 arrived within 15 minutes of schedule 80% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +53 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 | 283 | 80% |
| 16-30 min | 22 | 6% |
| 31-60 min | 18 | 5% |
| 61-120 min | 19 | 5% |
| 2+ hrs | 12 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 61% | +31 min |
| 2025-08 | 30 | 83% | +2 min |
| 2025-09 | 27 | 96% | -8 min |
| 2025-10 | 31 | 87% | -3 min |
| 2025-11 | 28 | 79% | +5 min |
| 2025-12 | 31 | 77% | +7 min |
| 2026-01 | 30 | 83% | +4 min |
| 2026-02 | 28 | 89% | -7 min |
| 2026-03 | 28 | 75% | +18 min |
| 2026-04 | 30 | 70% | +39 min |
| 2026-05 | 31 | 81% | +4 min |
| 2026-06 | 29 | 79% | +20 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 50 | 80% |
| Tue | 52 | 85% |
| Wed | 52 | 75% |
| Thu | 50 | 76% |
| Fri | 52 | 79% |
| Sat | 48 | 79% |
| Sun | 50 | 86% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…