Flight Reliability
AA 4223 · American Airlines
Miami → Key West (MIA–EYW)82% of its flights flew this route. The rest (CLE–DFW, DFW–CLE) are included in these numbers.
- 85%
- Arrive within 15 minutes
- 0 min
- Average arrival delay
- 0%
- Cancelled
- 8 min early
- Median arrival delay
Based on 190 historical flights. Data through May 2026.
What the data says
Morning flights do better here.
AA 4223 departing between 6–9 AM arrived on time 100% of the time, versus 83% between 3–6 PM.
Sunday scaries are real for this one.
AA 4223 arrived on time 97% of the time on Tuesdays and just 69% on Sundays. That gap is worth planning around.
Better than the American Airlines network average.
AA 4223 arrived on time 85% of the time, versus 77% across the American Airlines network.
It basically never cancels.
Out of 190 scheduled flights, only 0.0% were cancelled.
The breakdown
- Mon87%(23 flights)
- Tue97%(30 flights)
- Wed84%(32 flights)
- Thu86%(22 flights)
- Fri86%(22 flights)
- Sat82%(34 flights)
- Sun69%(26 flights)
- 6–9 AM100%(13 flights)
- 9 AM–12 PM89%(18 flights)
- 12–3 PM—(5 flights)
- 3–6 PM83%(153 flights)
Sep 96% → Mar 87% on time
| Month | On-time percentage | Flights |
|---|---|---|
| September 2025 | 96% | 22 |
| November 2025 | 79% | 29 |
| December 2025 | 93% | 30 |
| January 2026 | 77% | 30 |
| February 2026 | 75% | 28 |
| March 2026 | 87% | 31 |
- Departures on time
- 87%
- Diverted
- 0.5%
- Flights flown
- 189
- Months covered
- 10
Same route, other flights
Keep nerding
Based on 190 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.