Flight AA644
American Airlines flight AA644
Looking for AA644 in the airโฆ
Salt Lake City (SLC) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 11% of the time, and when it is late the delay averages 566 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 88.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 566 min
- Flights arriving 15+ minutes late
- Flights tracked
- 89
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 87%
- Late-arriving aircraft 11%
- Air traffic control & airport 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Buffalo (BUF)
Historically, this flight arrives 15+ minutes late 45% of the time, and when it is late the delay averages 93 minutes. It was cancelled 6.6% of the time.
- On-time arrivals
- 54.9%
- Less than 15 minutes late
- Cancelled
- 6.6%
- Of scheduled flights
- Average delay when late
- 93 min
- Flights arriving 15+ minutes late
- Flights tracked
- 76
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 72%
- Extreme weather 13%
- Airline (crew, maintenance, cleaning) 10%
- Air traffic control & airport 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Knoxville/Maryville (TYS)
Historically, this flight arrives 15+ minutes late 57% of the time, and when it is late the delay averages 103 minutes. It was cancelled 6.8% of the time.
- On-time arrivals
- 42.6%
- Less than 15 minutes late
- Cancelled
- 6.8%
- Of scheduled flights
- Average delay when late
- 103 min
- Flights arriving 15+ minutes late
- Flights tracked
- 59
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 76%
- Airline (crew, maintenance, cleaning) 13%
- Air traffic control & airport 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Knoxville/Maryville (TYS) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 58% of the time, and when it is late the delay averages 143 minutes. It was cancelled 7.0% of the time.
- On-time arrivals
- 41.5%
- Less than 15 minutes late
- Cancelled
- 7.0%
- Of scheduled flights
- Average delay when late
- 143 min
- Flights arriving 15+ minutes late
- Flights tracked
- 57
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Airline (crew, maintenance, cleaning) 30%
- Air traffic control & airport 2%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Buffalo (BUF) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 42% of the time, and when it is late the delay averages 52 minutes. It was cancelled 9.5% of the time.
- On-time arrivals
- 57.9%
- Less than 15 minutes late
- Cancelled
- 9.5%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 21
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 32%
- Air traffic control & airport 22%
- Extreme weather 8%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Los Angeles (LAX)
Historically, this flight arrives 15+ minutes late 30% of the time, and when it is late the delay averages 32 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 70.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 32 min
- Flights arriving 15+ minutes late
- Flights tracked
- 20
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 75%
- Air traffic control & airport 24%
- Late-arriving aircraft 1%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.7% | 30 |
| October 2025 | 87.1% | 31 |
| November 2025 | 75.0% | 22 |
| December 2025 | 58.6% | 31 |
| January 2026 | 48.4% | 34 |
| February 2026 | 52.0% | 25 |
| March 2026 | 83.3% | 6 |
| May 2026 | 56.2% | 18 |
| June 2026 | 36.8% | 42 |
| July 2026 | 33.3% | 48 |
| August 2026 | 91.4% | 35 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 โ August 2026. Covers flights operated by reporting U.S. carriers. About our data