Route Reliability
ROA → Chicago
ROA–ORD · 530 miles · ROA Airport to Chicago O'Hare International Airport
- 75%
- Arrive within 15 minutes
- 20 min
- Average arrival delay
- 3.0%
- Cancelled
- 1,379
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines79%260 flights
- 2.United Airlines74%1,119 flights
What the data says
Morning flights do better here.
ROA–ORD flights departing between 6–9 AM arrived on time 82% of the time, versus 62% between 3–6 PM.
Friday is doing you no favors.
ROA–ORD flights arrived on time 80% of the time on Mondays. On Fridays: 70%.
American Airlines has a slight edge here.
American Airlines arrived on time 79% of the time on this route; United Airlines managed 74%.
Keep a backup plan handy.
This route was cancelled 3.0% of the time. Typical for U.S. flights is around 1–2%.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon80%(194 flights)
- Tue70%(182 flights)
- Wed77%(187 flights)
- Thu78%(196 flights)
- Fri70%(199 flights)
- Sat75%(180 flights)
- Sun77%(192 flights)
- 6–9 AM82%(625 flights)
- 9 AM–12 PM78%(239 flights)
- 12–3 PM74%(129 flights)
- 3–6 PM62%(337 flights)
Jun 69% → May 80% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 69% | 75 |
| July 2025 | 70% | 74 |
| August 2025 | 75% | 101 |
| September 2025 | 78% | 116 |
| October 2025 | 78% | 124 |
| November 2025 | 79% | 113 |
| December 2025 | 63% | 118 |
| January 2026 | 74% | 91 |
| February 2026 | 76% | 98 |
| March 2026 | 72% | 111 |
| April 2026 | 81% | 158 |
| May 2026 | 80% | 151 |
Keep nerding
Based on 1,379 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.