UA6157 IAD → MCI
United Airlines · Washington, DC to Kansas City, MO · 314 flights observed, 2025-07-01 to 2026-05-20 · 926 mi
UA6157 covers more than one route in the data window — the stats below are for IAD → MCI, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
84%
Median delay
-8 min
90th percentile
+29 min
Cancellation rate
1%
How often is UA6157 on time?
Across 314 flights on IAD → MCI from 2025-07-01 to 2026-05-20, UA6157 arrived within 15 minutes of schedule 84% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +29 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 | 261 | 84% |
| 16-30 min | 19 | 6% |
| 31-60 min | 12 | 4% |
| 61-120 min | 5 | 2% |
| 2+ hrs | 13 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 77% | +26 min |
| 2025-08 | 27 | 89% | -4 min |
| 2025-09 | 26 | 77% | +16 min |
| 2025-10 | 31 | 94% | 0 min |
| 2025-11 | 28 | 93% | -6 min |
| 2025-12 | 30 | 60% | +20 min |
| 2026-01 | 30 | 87% | +13 min |
| 2026-02 | 28 | 89% | -9 min |
| 2026-03 | 30 | 90% | +0 min |
| 2026-04 | 30 | 87% | -1 min |
| 2026-05 | 20 | 85% | -2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 44 | 89% |
| Tue | 40 | 80% |
| Wed | 45 | 84% |
| Thu | 45 | 78% |
| Fri | 46 | 80% |
| Sat | 46 | 87% |
| Sun | 44 | 91% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…