Flight AA1557
American Airlines flight AA1557
Looking for AA1557 in the air…
Alerts at this flight's airports
Miami (MIA) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 88 minutes. It was cancelled 1.5% of the time.
- On-time arrivals
- 88.5%
- Less than 15 minutes late
- Cancelled
- 1.5%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 132
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 53% of the time, and when it is late the delay averages 134 minutes. It was cancelled 4.6% of the time.
- On-time arrivals
- 46.8%
- Less than 15 minutes late
- Cancelled
- 4.6%
- Of scheduled flights
- Average delay when late
- 134 min
- Flights arriving 15+ minutes late
- Flights tracked
- 65
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 60%
- Air traffic control & airport 31%
- Airline (crew, maintenance, cleaning) 6%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 105 minutes. It was cancelled 4.6% of the time.
- On-time arrivals
- 54.8%
- Less than 15 minutes late
- Cancelled
- 4.6%
- Of scheduled flights
- Average delay when late
- 105 min
- Flights arriving 15+ minutes late
- Flights tracked
- 65
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 40%
- Late-arriving aircraft 26%
- Extreme weather 17%
- Airline (crew, maintenance, cleaning) 17%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Miami (MIA)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 141 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 78.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 141 min
- Flights arriving 15+ minutes late
- Flights tracked
- 46
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 61%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 8%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 80 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 72.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 80 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 50%
- Air traffic control & airport 30%
- Extreme weather 15%
- Late-arriving aircraft 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Francisco (SFO) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 40% of the time, and when it is late the delay averages 91 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 60.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 91 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 50%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 17%
- Extreme weather 3%
- Security 3%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 306 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 75.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 306 min
- Flights arriving 15+ minutes late
- Flights tracked
- 33
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 79%
- Extreme weather 12%
- Air traffic control & airport 5%
- Late-arriving aircraft 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Detroit (DTW)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 74 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 74 min
- Flights arriving 15+ minutes late
- Flights tracked
- 32
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 62%
- Late-arriving aircraft 38%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Tampa (TPA)
Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 115 minutes. It was cancelled 3.3% of the time.
- On-time arrivals
- 75.9%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- 115 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Tampa (TPA) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 96 minutes. It was cancelled 3.3% of the time.
- On-time arrivals
- 55.2%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- 96 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 58%
- Air traffic control & airport 17%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Charlotte (CLT)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 281 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 86.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 281 min
- Flights arriving 15+ minutes late
- Flights tracked
- 29
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 45%
- Airline (crew, maintenance, cleaning) 29%
- Air traffic control & airport 27%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 80.7% | 57 |
| October 2025 | 87.1% | 62 |
| November 2025 | 90.3% | 31 |
| December 2025 | 90.3% | 31 |
| January 2026 | 74.1% | 29 |
| February 2026 | 85.7% | 28 |
| March 2026 | 71.7% | 55 |
| April 2026 | 61.0% | 60 |
| May 2026 | 65.5% | 58 |
| June 2026 | 58.0% | 52 |
| July 2026 | 48.0% | 54 |
| August 2026 | 69.7% | 33 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data