Flight OddsUA3646 IAD → CMH
United Airlines · Washington, DC to Columbus, OH · 320 flights observed, 2025-07-01 to 2026-05-20 · 299 mi
UA3646 covers more than one route in the data window — the stats below are for IAD → CMH, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-11 min
90th percentile
+38 min
Cancellation rate
3%
How often is UA3646 on time?
Across 320 flights on IAD → CMH from 2025-07-01 to 2026-05-20, UA3646 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +38 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 258 | 83% |
| 16-30 min | 20 | 6% |
| 31-60 min | 11 | 4% |
| 61-120 min | 12 | 4% |
| 2+ hrs | 9 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 74% | +38 min |
| 2025-08 | 31 | 90% | -7 min |
| 2025-09 | 29 | 79% | +28 min |
| 2025-10 | 31 | 90% | -7 min |
| 2025-11 | 27 | 89% | -5 min |
| 2025-12 | 30 | 87% | +2 min |
| 2026-01 | 29 | 83% | -5 min |
| 2026-02 | 27 | 81% | +1 min |
| 2026-03 | 29 | 66% | +9 min |
| 2026-04 | 30 | 93% | -7 min |
| 2026-05 | 20 | 80% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 81% |
| Tue | 47 | 85% |
| Wed | 44 | 77% |
| Thu | 44 | 84% |
| Fri | 45 | 91% |
| Sat | 44 | 86% |
| Sun | 43 | 77% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…