Best Time to Fly ROA to ATL: On-Time Stats by Hour & Airline
Roanoke Blacksburg Regional → Hartsfield-Jackson Atlanta International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 87.2% of Roanoke (ROA) to Atlanta (ATL) flights arrived on time (432 scheduled flights). That is 9.6 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 90.7% on time and SkyWest Airlines was last with 68.7%.
Over 24 months, Wednesday was the most reliable day (93% on time) and December the worst month (70%).
The cancellation rate was 2.1% (US average 1.8%).
ROA to ATL 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 |
|---|---|---|---|---|
| Delta Air Lines | 90.7% | 123 min | 2.5% | 365 |
| SkyWest Airlines | 68.7% | 97 min | 0.0% | 67 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ROA to ATL
On-time arrival % by scheduled departure hour (local time), 1,112 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 91.5% | 0.0% | 59 |
| 6am–7am | 90.3% | 1.7% | 664 |
| 7am–8am | Limited data | 7 | |
| 10am–11am | Limited data | 1 | |
| 11am–12pm | 85.9% | 1.5% | 130 |
| 1pm–2pm | 89.1% | 2.1% | 47 |
| 2pm–3pm | Limited data | 1 | |
| 3pm–4pm | 71.2% | 0.0% | 66 |
| 4pm–5pm | Limited data | 1 | |
| 5pm–6pm | Limited data | 7 | |
| 6pm–7pm | Limited data | 9 | |
| 7pm–8pm | 84.5% | 3.3% | 120 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ROA to ATL
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) | 83.9% | -3.8 pts | 0.0% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 78.0% | -9.7 pts | 2.0% | 51 |
| Summer peak (Jun 15 - Aug 15) | 91.8% | +4.1 pts | 3.9% | 154 |
| All other days | 87.7% | — | 1.4% | 876 |
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).