DL2999

DL2999 (Delta Air Lines) is a multi-stop service on 7 routes, busiest Atlanta to Milwaukee. Of 1,013 departures recorded from December 2024 to July 2026, 90.1% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January856▲ 600.0%
February–48–
March2060▲ 200.0%
April4560▲ 33.3%
May62620.0%
June60600.0%
July62620.0%
August58––
September60––
October62–in progress
November60––
December62––

according to the US BTS · December 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January75.0%84.6%▲ 12.8%
February–87.5%–
March38.9%92.9%▲ 138.8%
April84.4%96.6%▲ 14.3%
May82.0%100.0%▲ 22.0%
June91.5%93.1%▲ 1.7%
July91.9%93.6%▲ 1.8%
August94.8%––
September90.0%––
October96.8%–in progress
November98.3%––
December87.0%––

according to the US BTS · December 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · December 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January04–
February–0–
March24▲ 100.0%
April02–
May10▼ 100.0%
June12▲ 100.0%
July00–
August0––
September0––
October0–in progress
November0––
December8––

according to the US BTS · December 2024 → July 2026

This is not a forecast

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

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 97.6% 989
  • Cancelled 2.4% 24

Share of all recorded flights in the period, all legs. · Dec 6, 2024 → Jul 31, 2026

On time, leg by leg

  1. MKE–ATL464 92.5%
  2. ATL–MKE464 91.8%
  3. FLL–LGA31 48.3%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

3
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
December 2024 46 46 78.3% 0
January 2025 8 8 75.0% 0
March 2025 20 18 38.9% 2
April 2025 45 45 84.4% 0
May 2025 62 61 82.0% 1
June 2025 60 59 91.5% 1
July 2025 62 62 91.9% 0
August 2025 58 58 94.8% 0
September 2025 60 60 90.0% 0
October 2025 62 62 96.8% 0
November 2025 60 60 98.3% 0
December 2025 62 54 87.0% 8
January 2026 56 52 84.6% 4
February 2026 48 48 87.5% 0
March 2026 60 56 92.9% 4
April 2026 60 58 96.6% 2
May 2026 62 62 100.0% 0
June 2026 60 58 93.1% 2
July 2026 62 62 93.6% 0

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