Route Reliability
Chicago → ROA
ORD–ROA · 530 miles · Chicago O'Hare International Airport to ROA Airport
- 67%
- Arrive within 15 minutes
- 21 min
- Average arrival delay
- 3.4%
- Cancelled
- 1,380
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines73%261 flights
- 2.United Airlines65%1,119 flights
What the data says
Morning flights do better here.
ORD–ROA flights departing between 6–9 AM arrived on time 72% of the time, versus 55% between 3–6 PM.
Monday is the weak spot.
ORD–ROA flights arrived on time 72% of the time on Tuesdays. On Mondays: 61%.
American Airlines runs this route best.
American Airlines arrived on time 73% of the time on this route; United Airlines managed 65%.
Keep a backup plan handy.
This route was cancelled 3.4% 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
- Mon61%(188 flights)
- Tue72%(184 flights)
- Wed70%(187 flights)
- Thu65%(198 flights)
- Fri63%(199 flights)
- Sat68%(179 flights)
- Sun69%(191 flights)
- 6–9 AM72%(249 flights)
- 9 AM–12 PM67%(155 flights)
- 12–3 PM71%(326 flights)
- 3–6 PM55%(161 flights)
- 6–9 PM64%(319 flights)
- 9 PM–12 AM67%(116 flights)
Jun 64% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 64% | 77 |
| July 2025 | 61% | 74 |
| August 2025 | 76% | 101 |
| September 2025 | 81% | 115 |
| October 2025 | 72% | 124 |
| November 2025 | 64% | 110 |
| December 2025 | 56% | 116 |
| January 2026 | 54% | 90 |
| February 2026 | 62% | 99 |
| March 2026 | 67% | 116 |
| April 2026 | 63% | 153 |
| May 2026 | 74% | 151 |
Keep nerding
Based on 1,380 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.