Best Time to Fly SAN to CMH: On-Time Stats by Hour & Airline
San Diego International → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 68.6% of San Diego (SAN) to Columbus (CMH) flights arrived on time (194 scheduled flights). That is 9.0 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Saturday was the most reliable day (83% on time) and July the worst month (39%).
The cancellation rate was 1.0% (US average 1.8%).
SAN 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 |
|---|---|---|---|---|
| Southwest Airlines | 68.6% | 46 min | 1.0% | 194 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SAN to CMH
On-time arrival % by scheduled departure hour (local time), 203 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 5 | |
| 8am–9am | Limited data | 16 | |
| 9am–10am | Limited data | 3 | |
| 11am–12pm | 83.3% | 0.0% | 55 |
| 12pm–1pm | 80.0% | 1.8% | 56 |
| 1pm–2pm | Limited data | 30 | |
| 2pm–3pm | Limited data | 5 | |
| 4pm–5pm | 24.2% | 0.0% | 33 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SAN 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 | 6 | ||
| Christmas & New Year (Dec 20 - Jan 3) | Limited data | 11 | ||
| Summer peak (Jun 15 - Aug 15) | 44.2% | -33.5 pts | 0.0% | 54 |
| All other days | 77.7% | — | 1.5% | 132 |
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).