Flight AA1520
American Airlines flight AA1520
Looking for AA1520 in the air…
Houston (IAH) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 13% of the time, and when it is late the delay averages 125 minutes. It was cancelled 2.0% of the time.
- On-time arrivals
- 86.9%
- Less than 15 minutes late
- Cancelled
- 2.0%
- Of scheduled flights
- Average delay when late
- 125 min
- Flights arriving 15+ minutes late
- Flights tracked
- 101
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 59%
- Late-arriving aircraft 35%
- Air traffic control & airport 6%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nashville (BNA) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 76 minutes. It was cancelled 2.7% of the time.
- On-time arrivals
- 74.0%
- Less than 15 minutes late
- Cancelled
- 2.7%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 75
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 10%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Nashville (BNA)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 64 minutes. It was cancelled 4.0% of the time.
- On-time arrivals
- 77.8%
- Less than 15 minutes late
- Cancelled
- 4.0%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 75
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 18%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cedar Rapids (CID) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 53 minutes. It was cancelled 2.3% of the time.
- On-time arrivals
- 88.4%
- Less than 15 minutes late
- Cancelled
- 2.3%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 44
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 66%
- Airline (crew, maintenance, cleaning) 34%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Miami (MIA) to Philadelphia (PHL)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 129 minutes. It was cancelled 2.7% of the time.
- On-time arrivals
- 91.7%
- Less than 15 minutes late
- Cancelled
- 2.7%
- Of scheduled flights
- Average delay when late
- 129 min
- Flights arriving 15+ minutes late
- Flights tracked
- 37
- Scheduled flights in the period
What caused the delays
- Extreme weather 44%
- Airline (crew, maintenance, cleaning) 37%
- Air traffic control & airport 12%
- Late-arriving aircraft 7%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charleston (CHS) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 342 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 342 min
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 80%
- Late-arriving aircraft 13%
- Air traffic control & airport 7%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Charleston (CHS)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 58 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 77.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 58 min
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 74%
- Airline (crew, maintenance, cleaning) 24%
- Late-arriving aircraft 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 78 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 48.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 78 min
- Flights arriving 15+ minutes late
- Flights tracked
- 27
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 58%
- Air traffic control & airport 38%
- Airline (crew, maintenance, cleaning) 3%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New Orleans (MSY) to Miami (MIA)
Only 2 flights on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 2
- Scheduled flights in the period
Dallas-Fort Worth (DFW) to Pensacola (PNS)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 0.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 30 min
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 100%
- Airline (crew, maintenance, cleaning) 0%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Miami (MIA) to Dallas-Fort Worth (DFW)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Pensacola (PNS) to Dallas-Fort Worth (DFW)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 100.0% | 2 |
| October 2025 | 76.9% | 53 |
| November 2025 | 86.2% | 30 |
| December 2025 | 94.7% | 19 |
| January 2026 | 92.0% | 26 |
| February 2026 | 88.9% | 28 |
| March 2026 | 80.6% | 31 |
| April 2026 | 93.3% | 30 |
| May 2026 | 73.2% | 42 |
| June 2026 | 78.2% | 60 |
| July 2026 | 75.8% | 62 |
| August 2026 | 57.1% | 35 |
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