Best Time to Fly CMH to DAL: On-Time Stats by Hour & Airline
John Glenn Columbus International → Dallas Love Field
Data through July 2026 · Last updated October 18, 2026
535 flights were scheduled from Columbus (CMH) to Dallas (DAL) in the last 12 months, and 79.5% of those that flew arrived on time, 1.9 points above the US average of 77.6%.
Southwest Airlines was the only reporting airline with regular flights on this route.
October has been the best month (88% on time) and Sunday the weakest day of the week (72%).
1.5% of flights were cancelled, versus 1.8% nationally.
CMH to DAL 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 | 79.5% | 47 min | 1.5% | 535 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to DAL
On-time arrival % by scheduled departure hour (local time), 936 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 100.0% | 0.0% | 40 |
| 6am–7am | 92.0% | 1.1% | 89 |
| 7am–8am | 94.7% | 0.0% | 39 |
| 8am–9am | Limited data | 30 | |
| 9am–10am | 91.2% | 2.8% | 36 |
| 10am–11am | 90.7% | 2.3% | 44 |
| 11am–12pm | Limited data | 28 | |
| 12pm–1pm | 90.7% | 0.0% | 54 |
| 1pm–2pm | 86.6% | 0.0% | 98 |
| 2pm–3pm | Limited data | 25 | |
| 3pm–4pm | 70.2% | 0.0% | 131 |
| 4pm–5pm | 65.3% | 0.7% | 149 |
| 5pm–6pm | 57.6% | 1.2% | 86 |
| 6pm–7pm | 57.1% | 2.3% | 43 |
| 7pm–8pm | 46.5% | 0.0% | 44 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CMH to DAL
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) | 76.0% | -3.4 pts | 0.0% | 50 |
| Summer peak (Jun 15 - Aug 15) | 71.0% | -8.4 pts | 0.6% | 173 |
| All other days | 79.4% | — | 1.2% | 689 |
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).