UA307
United Airlines flight 307 — Columbus (CMH) to Chicago (ORD)
On time
78%
Avg delay
~61 min
Cancelled
1.9%
UA307 is fairly reliable, though delays happen. About 78% of departures arrive on time. When delays happen, the most common cause is air traffic / NAS.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 93% | 10.0% | 111 min |
| 2026-07 | 97% | 0.0% | 57 min |
| 2026-06 | 96% | 0.0% | 28 min |
| 2026-06 | 90% | 0.0% | 48 min |
| 2026-05 | 90% | 0.0% | 66 min |
| 2026-05 | 94% | 0.0% | 75 min |
| 2026-05 | 100% | 0.0% | 0 min |
| 2026-04 | 83% | 0.0% | 64 min |
| 2026-04 | 65% | 11.5% | 41 min |
| 2026-03 | 93% | 6.5% | 28 min |
| 2026-03 | 77% | 3.7% | 92 min |
| 2026-02 | 96% | 0.0% | 27 min |
Top delay cause
air traffic / NAS
Based on 1,848 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.