DL1043

DL1043 (Delta Air Lines) is a multi-stop service on 3 routes, busiest Detroit to Houston. Of 863 departures recorded from October 2024 to July 2026, 82.7% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January6235▼ 43.5%
February5645▼ 19.6%
March3938▼ 2.6%
April30300.0%
May3156▲ 80.6%
June3060▲ 100.0%
July3162▲ 100.0%
August31––
September30––
October31–in progress
November29––
December43––
Year to date (Jan–Jul)279326▲ 16.8%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

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

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January66.7%80.0%▲ 20.0%
February75.0%95.6%▲ 27.4%
March82.1%84.2%▲ 2.6%
April86.7%93.1%▲ 7.4%
May93.6%83.9%▼ 10.3%
June70.0%83.3%▲ 19.0%
July67.7%74.2%▲ 9.5%
August86.7%––
September90.0%––
October93.6%–in progress
November82.8%––
December90.0%––
Year-to-date average (Jan–Jul)77.4%84.9%▲ 9.7%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January20▼ 100.0%
February00–
March00–
April01–
May00–
June00–
July00–
August1––
September0––
October0–in progress
November0––
December3––
Year to date (Jan–Jul)21▼ 50.0%

according to the US BTS · October 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 99.2% 856
  • Cancelled 0.8% 7

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. DTW–IAH427 87.5%
  2. IAH–DTW400 77.8%
  3. DTW–DFW36 80.0%

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
October 2024 20 20 90.0% 0
November 2024 30 30 90.0% 0
December 2024 44 44 84.1% 0
January 2025 62 60 66.7% 2
February 2025 56 56 75.0% 0
March 2025 39 39 82.1% 0
April 2025 30 30 86.7% 0
May 2025 31 31 93.6% 0
June 2025 30 30 70.0% 0
July 2025 31 31 67.7% 0
August 2025 31 30 86.7% 1
September 2025 30 30 90.0% 0
October 2025 31 31 93.6% 0
November 2025 29 29 82.8% 0
December 2025 43 40 90.0% 3
January 2026 35 35 80.0% 0
February 2026 45 45 95.6% 0
March 2026 38 38 84.2% 0
April 2026 30 29 93.1% 1
May 2026 56 56 83.9% 0
June 2026 60 60 83.3% 0
July 2026 62 62 74.2% 0

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