DL1147

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

82.0%

DL1147, operated by Delta Air Lines, flies 2 different airport pairs — it is a multi-leg service. Across all 1,315 recorded departures, 82.0% left on time; the legs differ and are listed below.

domestic flights only sample 1,315 departures · arrival delay, measured at the gate
This number flies several legs

Because this number covers several legs, the headline figure is an average across all of them. Read the leg table for the one you are flying.

82.0%on time
9.8 minaverage delay
1.8%cancelled
1,315recorded departures

These charts combine all legs flown under this number. Changes in the mix of legs can affect the monthly figures; consult the leg table below.

On-time departures by month

All legs combined

On time means departing no more than 15 minutes after schedule. Monthly punctuality uses only non-cancelled flights with a recorded departure delay; flights with missing times are excluded. Each month reflects the records available from the source.

according to us_bts_otp · 2024-09 → 2026-06

Recorded departures by month

All legs combined

according to us_bts_otp · 2024-09 → 2026-06

Cancellation share

  • Not cancelled 98.2% 1,291
  • Cancelled 1.8% 24

Share of all recorded flights over the period shown, including every leg. Not cancelled does not necessarily mean on time.

according to us_bts_otp · 2024-09-01 → 2026-06-30

Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
September 2024 60 60 80.0% 0
October 2024 61 61 98.4% 0
November 2024 59 59 81.4% 0
December 2024 56 56 76.8% 0
January 2025 60 58 72.4% 2
February 2025 56 56 89.3% 0
March 2025 62 62 85.5% 0
April 2025 60 60 81.7% 0
May 2025 62 62 77.4% 0
June 2025 60 59 79.7% 1
July 2025 62 59 81.4% 3
August 2025 62 62 88.7% 0
September 2025 60 60 98.3% 0
October 2025 62 62 87.1% 0
November 2025 60 60 73.3% 0
December 2025 62 60 61.7% 2
January 2026 62 56 76.8% 6
February 2026 56 56 83.9% 0
March 2026 62 54 66.7% 8
April 2026 60 60 80.0% 0
May 2026 53 51 88.2% 2
June 2026 58 58 93.1% 0

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
ORD ATL Chicago O'Hare International Airport – Hartsfield Jackson Atlanta International Airport 976 13.8 min 79.9% 658
ATL ORD Hartsfield Jackson Atlanta International Airport – Chicago O'Hare International Airport 976 5.9 min 84.0% 657