Flight Reliability
AA 1057 · American Airlines
Boston → Phoenix (BOS–PHX)
81
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 1.4%
- Cancelled
- 7 min early
- Median arrival delay
Based on 362 historical flights. Data through May 2026.
What the data says
Friday comes out ahead.
A small edge: 81% on time on Fridays against 77% on Sundays.
The breakdown
- Mon78%(49 flights)
- Tue80%(51 flights)
- Wed78%(51 flights)
- Thu78%(50 flights)
- Fri81%(52 flights)
- Sat79%(52 flights)
- Sun77%(52 flights)
74%
May
Jun 77% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 77% | 30 |
| July 2025 | 74% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 73% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 86% | 28 |
| December 2025 | 83% | 29 |
| January 2026 | 83% | 29 |
| February 2026 | 65% | 26 |
| March 2026 | 81% | 31 |
| April 2026 | 70% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 357
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 362 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.