Flight DL971
Delta Air Lines flight DL971
Looking for DL971 in the air…
Atlanta (ATL) to Colorado Springs (COS)
Historically, this flight arrives 15+ minutes late 29% of the time, and when it is late the delay averages 64 minutes. It was cancelled 0.6% of the time.
- On-time arrivals
- 70.9%
- Less than 15 minutes late
- Cancelled
- 0.6%
- Of scheduled flights
- Average delay when late
- 64 min
- Flights arriving 15+ minutes late
- Flights tracked
- 177
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 55%
- Late-arriving aircraft 28%
- Air traffic control & airport 12%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Cleveland (CLE)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 54 minutes. It was cancelled 2.4% of the time.
- On-time arrivals
- 83.1%
- Less than 15 minutes late
- Cancelled
- 2.4%
- Of scheduled flights
- Average delay when late
- 54 min
- Flights arriving 15+ minutes late
- Flights tracked
- 85
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 47%
- Late-arriving aircraft 22%
- Air traffic control & airport 18%
- Extreme weather 13%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Houston (IAH) to Los Angeles (LAX)
Historically, this flight arrives 15+ minutes late 18% of the time, and when it is late the delay averages 122 minutes. It was cancelled 2.2% of the time.
- On-time arrivals
- 82.2%
- Less than 15 minutes late
- Cancelled
- 2.2%
- Of scheduled flights
- Average delay when late
- 122 min
- Flights arriving 15+ minutes late
- Flights tracked
- 46
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 70%
- Late-arriving aircraft 19%
- Air traffic control & airport 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Boston (BOS)
Only 11 flights on record, which is too few for reliable odds.
- On-time arrivals
- 18.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 31 min
- Flights arriving 15+ minutes late
- Flights tracked
- 11
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 44%
- Late-arriving aircraft 35%
- Air traffic control & airport 20%
- 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 | 100.0% | 13 |
| October 2025 | 74.1% | 27 |
| November 2025 | 91.7% | 26 |
| December 2025 | 57.1% | 28 |
| January 2026 | 68.4% | 20 |
| February 2026 | 81.8% | 22 |
| March 2026 | 90.0% | 30 |
| April 2026 | 66.7% | 30 |
| May 2026 | 73.3% | 31 |
| June 2026 | 90.0% | 30 |
| July 2026 | 40.0% | 31 |
| August 2026 | 71.0% | 31 |
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