Best Time to Fly CMH to DCA: On-Time Stats by Hour & Airline
John Glenn Columbus International → Ronald Reagan Washington National
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 69.7% of Columbus (CMH) to Washington (DCA) flights arrived on time (2,051 scheduled flights). That is 7.9 points below the national average of 77.6%.
Among 4 airlines, Envoy Air led with 89.1% on time and Southwest Airlines was last with 59.9%.
Over 24 months, Saturday was the most reliable day (80% on time) and February the worst month (58%).
The cancellation rate was 3.0% (US average 1.8%).
CMH to DCA 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 |
|---|---|---|---|---|
| Envoy Air | 89.1% | 47 min | 0.7% | 287 |
| PSA Airlines | 69.4% | 94 min | 5.8% | 433 |
| Republic Airways | 67.6% | 60 min | 3.2% | 981 |
| Southwest Airlines | 59.9% | 64 min | 1.1% | 350 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CMH to DCA
On-time arrival % by scheduled departure hour (local time), 4,062 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.2% | 1.9% | 52 |
| 6am–7am | 89.2% | 1.7% | 659 |
| 7am–8am | Limited data | 11 | |
| 8am–9am | 75.6% | 0.0% | 41 |
| 9am–10am | 84.7% | 2.4% | 207 |
| 10am–11am | 79.4% | 4.5% | 269 |
| 11am–12pm | 84.5% | 0.0% | 103 |
| 12pm–1pm | 74.3% | 1.7% | 591 |
| 1pm–2pm | 80.8% | 1.1% | 364 |
| 2pm–3pm | 52.0% | 2.6% | 308 |
| 3pm–4pm | 60.0% | 4.1% | 391 |
| 4pm–5pm | 71.3% | 4.3% | 186 |
| 5pm–6pm | 65.5% | 5.2% | 382 |
| 6pm–7pm | 60.3% | 7.3% | 272 |
| 7pm–8pm | 62.6% | 5.8% | 156 |
| 8pm–9pm | 37.7% | 12.9% | 70 |
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 DCA
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% | +1.0 pts | 0.0% | 78 |
| Christmas & New Year (Dec 20 - Jan 3) | 77.5% | +4.2 pts | 0.0% | 111 |
| Summer peak (Jun 15 - Aug 15) | 69.4% | -3.9 pts | 6.8% | 703 |
| All other days | 73.3% | — | 2.7% | 3,170 |
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).