Flight AA1721
American Airlines flight AA1721
Looking for AA1721 in the air…
Charleston (CHS) to Charlotte (CLT)
Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 549 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 92.4%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 549 min
- Flights arriving 15+ minutes late
- Flights tracked
- 132
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 99%
- Air traffic control & airport 1%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Miami (MIA) to Nashville (BNA)
Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 81 minutes. It was cancelled 1.8% of the time.
- On-time arrivals
- 48.1%
- Less than 15 minutes late
- Cancelled
- 1.8%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 55
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 69%
- Late-arriving aircraft 19%
- Air traffic control & airport 11%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
PBI → PHL
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 273 minutes. It was cancelled 8.1% of the time.
- On-time arrivals
- 79.4%
- Less than 15 minutes late
- Cancelled
- 8.1%
- Of scheduled flights
- Average delay when late
- 273 min
- Flights arriving 15+ minutes late
- Flights tracked
- 37
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Extreme weather 39%
- Airline (crew, maintenance, cleaning) 9%
- Air traffic control & airport 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Boston (BOS) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 3.3% of the time.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- —
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
Myrtle Beach (MYR) to Charlotte (CLT)
Historically, this flight arrives 15+ minutes late 3% of the time, and when it is late the delay averages 1026 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 96.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 1026 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 100%
- Airline (crew, maintenance, cleaning) 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Philadelphia (PHL) to Miami (MIA)
Historically, this flight arrives 15+ minutes late 22% of the time, and when it is late the delay averages 75 minutes. It was cancelled 4.2% of the time.
- On-time arrivals
- 78.3%
- Less than 15 minutes late
- Cancelled
- 4.2%
- Of scheduled flights
- Average delay when late
- 75 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 81%
- Air traffic control & airport 19%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Washington (DCA) to Miami (MIA)
Only 19 flights on record, which is too few for reliable odds.
- On-time arrivals
- 78.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 88 min
- Flights arriving 15+ minutes late
- Flights tracked
- 19
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 80%
- Air traffic control & airport 20%
- Late-arriving aircraft 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to McAllen (MFE)
Only 4 flights on record, which is too few for reliable odds.
- On-time arrivals
- 50.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 100 min
- Flights arriving 15+ minutes late
- Flights tracked
- 4
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 97%
- Airline (crew, maintenance, cleaning) 3%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Philadelphia (PHL)
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 | 89.7% | 29 |
| October 2025 | 90.3% | 31 |
| November 2025 | 96.6% | 29 |
| December 2025 | 70.0% | 20 |
| January 2026 | 85.7% | 31 |
| February 2026 | 81.5% | 28 |
| March 2026 | 90.0% | 31 |
| April 2026 | 100.0% | 30 |
| May 2026 | 69.0% | 29 |
| June 2026 | 63.6% | 22 |
| July 2026 | 50.0% | 22 |
| August 2026 | 86.2% | 30 |
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