DL2104

This is not a forecast

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

81.5%

DL2104, operated by Delta Air Lines, flies 2 different airport pairs — it is a multi-leg service. Across all 1,252 recorded departures, 81.5% left on time; the legs differ and are listed below.

domestic flights only sample 1,252 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.

81.5%on time
9.0 minaverage delay
1.0%cancelled
1,252recorded 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 99.0% 1,240
  • Cancelled 1.0% 12

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 83.3% 0
October 2024 62 62 93.6% 0
November 2024 57 57 84.2% 0
December 2024 56 56 80.4% 0
January 2025 52 50 80.0% 2
February 2025 44 44 81.8% 0
March 2025 58 58 82.8% 0
April 2025 60 60 95.0% 0
May 2025 62 62 72.6% 0
June 2025 60 60 68.3% 0
July 2025 62 62 69.4% 0
August 2025 62 62 80.7% 0
September 2025 60 60 93.3% 0
October 2025 61 61 77.1% 0
November 2025 58 58 87.9% 0
December 2025 59 55 72.7% 4
January 2026 57 53 84.9% 4
February 2026 54 52 86.5% 2
March 2026 38 38 86.8% 0
April 2026 48 48 72.9% 0
May 2026 62 62 82.3% 0
June 2026 60 60 76.7% 0

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
AUS ATL Austin Bergstrom International Airport – Hartsfield Jackson Atlanta International Airport 1,305 12.9 min 78.5% 637
ATL AUS Hartsfield Jackson Atlanta International Airport – Austin Bergstrom International Airport 1,305 4.9 min 84.6% 615