Best Time to Fly ROA to ORD: On-Time Stats by Hour & Airline
Roanoke Blacksburg Regional → Chicago O'Hare International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 75.5% of Roanoke (ROA) to Chicago (ORD) flights arrived on time (882 scheduled flights). That is 2.1 points below the national average of 77.6%.
Republic Airways was the most punctual of the 2 airlines on the route at 79.2%, while SkyWest Airlines trailed at 73.4%.
May has been the best month (85% on time) and Friday the weakest day of the week (68%).
3.2% of flights were cancelled, versus 1.8% nationally.
ROA to ORD 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 | 79.2% | 80 min | 2.8% | 321 |
| SkyWest Airlines | 73.4% | 112 min | 3.4% | 561 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ROA to ORD
On-time arrival % by scheduled departure hour (local time), 1,469 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | 82.8% | 1.8% | 326 |
| 7am–8am | 81.9% | 1.4% | 415 |
| 10am–11am | 75.9% | 4.6% | 196 |
| 11am–12pm | Limited data | 30 | |
| 12pm–1pm | 75.8% | 8.3% | 36 |
| 5pm–6pm | 60.6% | 2.4% | 464 |
| 9pm–10pm | Limited data | 2 | |
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 ORD
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 | 28 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 76.9% | +1.5 pts | 3.2% | 94 |
| Summer peak (Jun 15 - Aug 15) | 72.2% | -3.3 pts | 2.5% | 281 |
| All other days | 75.4% | — | 2.1% | 1,066 |
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).