Best Time to Fly DCA to CMH: On-Time Stats by Hour & Airline
Ronald Reagan Washington National → John Glenn Columbus International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 77.8% of Washington (DCA) to Columbus (CMH) flights arrived on time (2,052 scheduled flights). That is in line with the national average of 77.6%.
Among 4 airlines, Republic Airways led with 80.4% on time and PSA Airlines was last with 72.2%.
Over 24 months, Tuesday was the most reliable day (82% on time) and June the worst month (67%).
The cancellation rate was 3.1% (US average 1.8%).
DCA 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 |
|---|---|---|---|---|
| Republic Airways | 80.4% | 64 min | 2.2% | 980 |
| Southwest Airlines | 78.9% | 56 min | 0.3% | 349 |
| Envoy Air | 76.0% | 98 min | 4.5% | 288 |
| PSA Airlines | 72.2% | 65 min | 6.4% | 435 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DCA to CMH
On-time arrival % by scheduled departure hour (local time), 4,063 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 1 | |
| 7am–8am | 88.3% | 3.0% | 300 |
| 8am–9am | 80.7% | 3.8% | 237 |
| 9am–10am | Limited data | 6 | |
| 10am–11am | 87.3% | 1.9% | 696 |
| 11am–12pm | 69.5% | 0.0% | 105 |
| 12pm–1pm | 80.3% | 2.2% | 446 |
| 1pm–2pm | 81.2% | 1.6% | 566 |
| 2pm–3pm | 70.6% | 3.4% | 262 |
| 3pm–4pm | 78.1% | 2.6% | 189 |
| 4pm–5pm | 71.0% | 4.1% | 413 |
| 5pm–6pm | 37.5% | 3.0% | 33 |
| 6pm–7pm | 56.5% | 9.2% | 76 |
| 7pm–8pm | 73.1% | 3.5% | 227 |
| 8pm–9pm | 81.1% | 3.4% | 148 |
| 9pm–10pm | 73.2% | 8.9% | 45 |
| 10pm–11pm | 69.4% | 10.2% | 313 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on DCA 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) | 74.4% | -5.7 pts | 0.0% | 78 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.2% | -1.9 pts | 0.0% | 111 |
| Summer peak (Jun 15 - Aug 15) | 70.4% | -9.7 pts | 6.3% | 703 |
| All other days | 80.1% | — | 3.0% | 3,171 |
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).