Best Time to Fly SFO to CMH: On-Time Stats by Hour & Airline
San Francisco International → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.3% of San Francisco (SFO) to Columbus (CMH) flights arrived on time (322 scheduled flights). That is in line with the national average of 77.6%.
United Airlines was the only reporting airline with regular flights on this route.
September has been the best month (90% on time) and Thursday the weakest day of the week (72%).
0.6% of flights were cancelled, versus 1.8% nationally.
SFO to CMH on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| United Airlines | 77.3% | 54 min | 0.6% | 322 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SFO to CMH
On-time arrival % by scheduled departure hour (local time), 571 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 8am–9am | 85.5% | 0.0% | 69 |
| 9am–10am | Limited data | 3 | |
| 10am–11am | 74.0% | 0.0% | 197 |
| 11am–12pm | 80.0% | 0.0% | 30 |
| 12pm–1pm | Limited data | 16 | |
| 1pm–2pm | 79.5% | 0.0% | 39 |
| 2pm–3pm | 66.7% | 2.7% | 37 |
| 4pm–5pm | Limited data | 25 | |
| 9pm–10pm | 81.8% | 0.0% | 45 |
| 10pm–11pm | 65.9% | 1.1% | 92 |
| 11pm–12am | Limited data | 18 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SFO to CMH
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 17 | ||
| Summer peak (Jun 15 - Aug 15) | 73.2% | -3.3 pts | 0.7% | 151 |
| All other days | 76.5% | — | 0.2% | 403 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).