Best Time to Fly DAL to CMH: On-Time Stats by Hour & Airline
Dallas Love Field → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 71.1% of Dallas (DAL) to Columbus (CMH) flights arrived on time (537 scheduled flights). That is 6.5 points below the national average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
November has been the best month (82% on time) and Thursday the weakest day of the week (64%).
1.3% of flights were cancelled, versus 1.8% nationally.
DAL 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 | 71.1% | 59 min | 1.3% | 537 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DAL to CMH
On-time arrival % by scheduled departure hour (local time), 939 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 24 | |
| 8am–9am | 81.9% | 0.9% | 106 |
| 9am–10am | 89.7% | 1.1% | 88 |
| 10am–11am | 77.5% | 0.0% | 49 |
| 11am–12pm | Limited data | 2 | |
| 12pm–1pm | 70.4% | 2.7% | 73 |
| 1pm–2pm | 79.7% | 1.3% | 75 |
| 2pm–3pm | 71.6% | 0.0% | 109 |
| 3pm–4pm | 71.6% | 0.7% | 135 |
| 4pm–5pm | 86.8% | 0.0% | 38 |
| 5pm–6pm | 61.8% | 1.4% | 69 |
| 7pm–8pm | 52.5% | 1.0% | 102 |
| 8pm–9pm | 39.4% | 2.9% | 69 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DAL 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 | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 66.7% | -7.3 pts | 0.0% | 51 |
| Summer peak (Jun 15 - Aug 15) | 62.2% | -11.8 pts | 1.1% | 174 |
| All other days | 74.0% | — | 1.2% | 690 |
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).