Flight Reliability
AA 4 · American Airlines
Los Angeles → New York (LAX–JFK)
73
Usually Fine
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 2.8%
- Cancelled
- 7 min early
- Median arrival delay
Based on 360 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
AA 4 arrived on time 83% of the time on Tuesdays. On Fridays: 74%.
Ticking up lately.
AA 4 arrived on time 78% of the time over the last three months in the data, compared with 72% in the three months before that.
The breakdown
- Mon80%(49 flights)
- Tue83%(52 flights)
- Wed77%(51 flights)
- Thu75%(48 flights)
- Fri74%(50 flights)
- Sat78%(51 flights)
- Sun77%(48 flights)
- 12–3 PM79%(81 flights)
- 3–6 PM77%(268 flights)
79%
May
Jun 79% → May 79% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 79% | 29 |
| July 2025 | 79% | 29 |
| August 2025 | 77% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 74% | 31 |
| November 2025 | 86% | 29 |
| December 2025 | 72% | 29 |
| January 2026 | 86% | 28 |
| February 2026 | 58% | 26 |
| March 2026 | 80% | 30 |
| April 2026 | 75% | 28 |
| May 2026 | 79% | 29 |
- Departures on time
- 76%
- Diverted
- 0.3%
- Flights flown
- 349
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 360 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.