Flight Reliability
AA 3648 · American Airlines
Chicago → GSO (ORD–GSO)
73
Usually Fine
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 3.2%
- Cancelled
- 10 min early
- Median arrival delay
Based on 342 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
AA 3648 arrived on time 87% of the time on Tuesdays and just 68% on Sundays. That gap is worth planning around.
Keep a backup plan handy.
AA 3648 was cancelled 3.2% of the time. Typical for U.S. flights is around 1–2%.
The breakdown
- Mon82%(50 flights)
- Tue87%(46 flights)
- Wed77%(44 flights)
- Thu79%(48 flights)
- Fri76%(50 flights)
- Sat83%(42 flights)
- Sun68%(50 flights)
- 12–3 PM—(1 flights)
- 3–6 PM—(1 flights)
- 6–9 PM79%(328 flights)
84%
May
Jun 87% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 87% | 30 |
| July 2025 | 76% | 29 |
| August 2025 | 86% | 29 |
| September 2025 | 93% | 30 |
| October 2025 | 82% | 27 |
| November 2025 | 83% | 18 |
| December 2025 | 68% | 22 |
| January 2026 | 79% | 28 |
| February 2026 | 68% | 28 |
| March 2026 | 61% | 31 |
| April 2026 | 78% | 27 |
| May 2026 | 84% | 31 |
- Departures on time
- 76%
- Diverted
- 0.3%
- Flights flown
- 330
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 342 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.