Flight DL1156
Delta Air Lines flight DL1156
Looking for DL1156 in the air…
Austin (AUS) to Boston (BOS)
Historically, this flight arrives 15+ minutes late 46% of the time, and when it is late the delay averages 96 minutes. It was cancelled 1.3% of the time.
- On-time arrivals
- 53.8%
- Less than 15 minutes late
- Cancelled
- 1.3%
- Of scheduled flights
- Average delay when late
- 96 min
- Flights arriving 15+ minutes late
- Flights tracked
- 306
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 46%
- Airline (crew, maintenance, cleaning) 30%
- Late-arriving aircraft 23%
- Extreme weather 2%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Knoxville/Maryville (TYS) to Atlanta (ATL)
Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 69 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 79.2%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 69 min
- Flights arriving 15+ minutes late
- Flights tracked
- 24
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 68%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 4%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Atlanta (ATL) to Knoxville/Maryville (TYS)
Only 13 flights on record, which is too few for reliable odds.
- On-time arrivals
- 61.5%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 59 min
- Flights arriving 15+ minutes late
- Flights tracked
- 13
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 57%
- Airline (crew, maintenance, cleaning) 33%
- Air traffic control & airport 11%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Detroit (DTW) to Fort Myers (RSW)
Only 9 flights on record, which is too few for reliable odds.
- On-time arrivals
- 77.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 87 min
- Flights arriving 15+ minutes late
- Flights tracked
- 9
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 47%
- Extreme weather 21%
- Airline (crew, maintenance, cleaning) 19%
- Air traffic control & airport 14%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
In the news
More headlines →-
Delta Air Lines' Boeing 757 Fleet Fell From 127 To 83 & Some Retired Jets Became Spare Parts
Simple Flying Delta Air Lines
-
Form 424B5 Delta Airlines For: 4 November By Investing.com
Investing.com Canada Delta Air Lines
-
The cabin as a growth engine: Delta Air Lines on personalisation, connectivity and onboard retail innovation
Future Travel Experience Delta Air Lines
-
Delta Air Lines CEO Vows To Fight Heathrow Move That Separates It From Virgin Atlantic
Live and Let's Fly Delta Air Lines
-
Heathrow’s plans to move operations affect Delta Air Lines
Travel Radar Delta Air Lines
-
Delta Air Lines Passenger Shouts “I Love Myself” As Police Haul Him Off—New Video Shows JFK Airport Arrest
View from the Wing Delta Air Lines
Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 26.7% | 30 |
| October 2025 | 39.3% | 28 |
| November 2025 | 65.4% | 27 |
| December 2025 | 56.0% | 25 |
| January 2026 | 73.1% | 28 |
| February 2026 | 58.6% | 29 |
| March 2026 | 71.0% | 32 |
| April 2026 | 48.3% | 30 |
| May 2026 | 67.7% | 31 |
| June 2026 | 73.3% | 30 |
| July 2026 | 41.9% | 31 |
| August 2026 | 58.1% | 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