CMH → SFO: cancellations & delays
Over Jan 2023 - Apr 2026, 0.9% of John Glenn Columbus International Airport (CMH) to San Francisco International Airport (SFO) flights were cancelled and 35.0% arrived at least 15 minutes late, across 995 flights, flown by UA. Cancellations peak in July.
Check today's live CMH departures →Airport pages: John Glenn Columbus International Airport (CMH) · San Francisco International Airport (SFO)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.