Flight DL957
Delta Air Lines flight DL957
Looking for DL957 in the air…
Denver (DEN) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 85 minutes. It was cancelled 0.5% of the time.
- On-time arrivals
- 83.5%
- Less than 15 minutes late
- Cancelled
- 0.5%
- Of scheduled flights
- Average delay when late
- 85 min
- Flights arriving 15+ minutes late
- Flights tracked
- 214
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 42%
- Late-arriving aircraft 31%
- Air traffic control & airport 18%
- Extreme weather 9%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 81 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 88.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 81 min
- Flights arriving 15+ minutes late
- Flights tracked
- 83
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 66%
- Air traffic control & airport 19%
- Late-arriving aircraft 15%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Phoenix (PHX)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 79.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 73
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 45%
- Air traffic control & airport 40%
- Late-arriving aircraft 15%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Phoenix (PHX) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 73 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 86.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 73 min
- Flights arriving 15+ minutes late
- Flights tracked
- 73
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 80%
- Airline (crew, maintenance, cleaning) 13%
- Air traffic control & airport 8%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Milwaukee (MKE)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 92.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 45 min
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 64%
- Late-arriving aircraft 36%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Milwaukee (MKE) to Detroit (DTW)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 92.3%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 24 min
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- 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).
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 91.7% | 24 |
| October 2025 | 94.2% | 52 |
| November 2025 | 74.1% | 58 |
| December 2025 | 82.0% | 50 |
| January 2026 | 92.0% | 25 |
| February 2026 | 95.8% | 24 |
| March 2026 | 86.2% | 31 |
| April 2026 | 93.3% | 30 |
| May 2026 | 81.5% | 27 |
| June 2026 | 86.8% | 53 |
| July 2026 | 75.8% | 62 |
| August 2026 | 78.8% | 33 |
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