Flight OddsUnited Airlines · Kansas City, MO to Washington, DC · 201 flights observed, 2025-10-26 to 2026-05-20 · 926 mi
UA4034 covers more than one route in the data window — the stats below are for MCI → IAD, the one it has flown most recently. The others are linked under “Other routes”.
How often is UA4034 on time?
Across 201 flights on MCI → IAD from 2025-10-26 to 2026-05-20, UA4034 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -12 min, and the worst 10% of flights arrived +19 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 | 177 | 89% |
| 16-30 min | 7 | 4% |
| 31-60 min | 5 | 3% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 7 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 67% | +24 min |
| 2025-11 | 29 | 86% | -3 min |
| 2025-12 | 31 | 90% | -12 min |
| 2026-01 | 26 | 92% | -12 min |
| 2026-02 | 27 | 96% | -10 min |
| 2026-03 | 30 | 77% | +12 min |
| 2026-04 | 30 | 100% | -10 min |
| 2026-05 | 20 | 85% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 30 | 80% |
| Tue | 30 | 93% |
| Wed | 30 | 80% |
| Thu | 28 | 86% |
| Fri | 29 | 97% |
| Sat | 24 | 96% |
| Sun | 28 | 93% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…