Flight Reliability
AA 640 · American Airlines
Phoenix → Charlotte (PHX–CLT)93% of its flights flew this route. The rest (IAH–PHX, PHX–IAH) are included in these numbers.
79
Usually Fine
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 2.7%
- Cancelled
- 9 min early
- Median arrival delay
Based on 149 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
AA 640 arrived on time 95% of the time on Saturdays and just 65% on Wednesdays. That gap is worth planning around.
A bit behind the PHX–CLT route.
AA 640 arrived on time 81% of the time, versus 88% across the PHX–CLT route.
A bit ahead of the American Airlines network.
AA 640 arrived on time 81% of the time, versus 77% across the American Airlines network.
The breakdown
- Mon91%(23 flights)
- Tue77%(13 flights)
- Wed65%(17 flights)
- Thu68%(25 flights)
- Fri92%(24 flights)
- Sat95%(21 flights)
- Sun77%(22 flights)
- 12–3 PM—(5 flights)
- 3–6 PM—(5 flights)
- 9 PM–12 AM81%(135 flights)
90%
May
Jun 80% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 30 |
| July 2025 | 70% | 27 |
| August 2025 | 93% | 28 |
| September 2025 | 79% | 28 |
| October 2025 | 82% | 22 |
| May 2026 | 90% | 10 |
- Departures on time
- 77%
- Diverted
- 0%
- Flights flown
- 145
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 149 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.