Flight AA2421
American Airlines flight AA2421
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Alerts at this flight's airports
Phoenix (PHX) to San Francisco (SFO)
Historically, this flight arrives 15+ minutes late 31% of the time, and when it is late the delay averages 57 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 69.0%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 117
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 43%
- Air traffic control & airport 39%
- Airline (crew, maintenance, cleaning) 18%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Des Moines (DSM)
Historically, this flight arrives 15+ minutes late 54% of the time, and when it is late the delay averages 121 minutes. It was cancelled 1.3% of the time.
- On-time arrivals
- 45.9%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 121 min
- Flights arriving 15+ minutes late
- Flights tracked
- 75
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Airline (crew, maintenance, cleaning) 26%
- Air traffic control & airport 4%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Des Moines (DSM) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 135 minutes. It was cancelled 1.3% of the time.
- On-time arrivals
- 47.9%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 135 min
- Flights arriving 15+ minutes late
- Flights tracked
- 75
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 82%
- Extreme weather 11%
- Airline (crew, maintenance, cleaning) 5%
- Air traffic control & airport 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 55 minutes. It was cancelled 6.5% of the time.
- On-time arrivals
- 82.1%
- Less than 15 minutes late
- Cancelled
- 6.5%
- Of scheduled flights
- Average delay when late
- 55 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 54%
- Late-arriving aircraft 27%
- Extreme weather 19%
- Airline (crew, maintenance, cleaning) 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Phoenix (PHX)
Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 56 minutes. It was cancelled 3.3% of the time.
- On-time arrivals
- 62.1%
- Less than 15 minutes late
- Cancelled
- 3.3%
- Of scheduled flights
- Average delay when late
- 56 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 59%
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Las Vegas (LAS)
Historically, this flight arrives 15+ minutes late 5% of the time, and when it is late the delay averages 45 minutes. It was cancelled 12.0% of the time.
- On-time arrivals
- 95.2%
- Less than 15 minutes late
- Cancelled
- 12.0%
- Of scheduled flights
- Average delay when late
- 45 min
- Flights arriving 15+ minutes late
- Flights tracked
- 25
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 100%
- Late-arriving aircraft 0%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Las Vegas (LAS) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 86 minutes. It was cancelled 12.0% of the time.
- On-time arrivals
- 81.8%
- Less than 15 minutes late
- Cancelled
- 12.0%
- Of scheduled flights
- Average delay when late
- 86 min
- Flights arriving 15+ minutes late
- Flights tracked
- 25
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 67%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
New York (JFK) to Charlotte (CLT)
Historically, this flight arrives 15+ minutes late 33% of the time, and when it is late the delay averages 53 minutes. It was cancelled 12.5% of the time.
- On-time arrivals
- 66.7%
- Less than 15 minutes late
- Cancelled
- 12.5%
- Of scheduled flights
- Average delay when late
- 53 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 91%
- Airline (crew, maintenance, cleaning) 7%
- Air traffic control & airport 3%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Fort Myers (RSW) to Phoenix (PHX)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 62.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 62 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 41%
- Air traffic control & airport 38%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte (CLT) to Miami (MIA)
Only 15 flights on record, which is too few for reliable odds.
- On-time arrivals
- 86.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 30 min
- Flights arriving 15+ minutes late
- Flights tracked
- 15
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Airline (crew, maintenance, cleaning) 28%
- Air traffic control & airport 21%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 79.3% | 30 |
| October 2025 | 62.5% | 16 |
| November 2025 | 80.8% | 29 |
| December 2025 | 82.1% | 28 |
| January 2026 | 85.3% | 41 |
| February 2026 | 71.4% | 31 |
| March 2026 | 66.7% | 31 |
| April 2026 | 63.3% | 30 |
| May 2026 | 57.1% | 42 |
| June 2026 | 37.9% | 60 |
| July 2026 | 54.2% | 60 |
| August 2026 | 62.9% | 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