Flight AA633
American Airlines flight AA633
Looking for AA633 in the air…
Phoenix (PHX) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 42% of the time, and when it is late the delay averages 51 minutes. It was cancelled 9.2% of the time.
- On-time arrivals
- 58.0%
- Less than 15 minutes late
- Cancelled
- 9.2%
- Of scheduled flights
- Average delay when late
- 51 min
- Flights arriving 15+ minutes late
- Flights tracked
- 76
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 51%
- Air traffic control & airport 24%
- Airline (crew, maintenance, cleaning) 15%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Dallas-Fort Worth (DFW) to Sioux Falls (FSD)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 104 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 72.6%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 104 min
- Flights arriving 15+ minutes late
- Flights tracked
- 74
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 53%
- Air traffic control & airport 23%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Sioux Falls (FSD) to Dallas-Fort Worth (DFW)
Historically, this flight arrives 15+ minutes late 27% of the time, and when it is late the delay averages 137 minutes. It was cancelled 1.4% of the time.
- On-time arrivals
- 72.6%
- Less than 15 minutes late
- Cancelled
- 1.4%
- Of scheduled flights
- Average delay when late
- 137 min
- Flights arriving 15+ minutes late
- Flights tracked
- 74
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 67%
- Extreme weather 18%
- Airline (crew, maintenance, cleaning) 10%
- Air traffic control & airport 5%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Miami (MIA) to Charlotte Amalie (STT)
Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 35 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 74.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 35 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 46%
- Extreme weather 20%
- Airline (crew, maintenance, cleaning) 18%
- Late-arriving aircraft 16%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Charlotte Amalie (STT) to Miami (MIA)
Historically, this flight arrives 15+ minutes late 16% of the time, and when it is late the delay averages 33 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 83.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 33 min
- Flights arriving 15+ minutes late
- Flights tracked
- 31
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Air traffic control & airport 19%
- Extreme weather 12%
- Airline (crew, maintenance, cleaning) 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Cincinnati / Covington (CVG)
Only 16 flights on record, which is too few for reliable odds.
- On-time arrivals
- 56.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 105 min
- Flights arriving 15+ minutes late
- Flights tracked
- 16
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 74%
- Air traffic control & airport 13%
- Airline (crew, maintenance, cleaning) 13%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cincinnati / Covington (CVG) to Phoenix (PHX)
Only 12 flights on record, which is too few for reliable odds.
- On-time arrivals
- 33.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 76 min
- Flights arriving 15+ minutes late
- Flights tracked
- 12
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Airline (crew, maintenance, cleaning) 25%
- Air traffic control & airport 9%
- Security 3%
- Extreme weather 0%
Share of delay minutes airlines attributed to each cause (BTS).
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 50.0% | 2 |
| October 2025 | 80.8% | 52 |
| November 2025 | 100.0% | 2 |
| December 2025 | 55.0% | 20 |
| January 2026 | 25.0% | 8 |
| March 2026 | 76.1% | 48 |
| April 2026 | 71.7% | 60 |
| May 2026 | 65.3% | 51 |
| June 2026 | 68.0% | 29 |
| July 2026 | 51.7% | 30 |
| August 2026 | 66.7% | 12 |
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