DL1084

DL1084 (Delta Air Lines) is a multi-stop service on 13 routes, busiest Chicago to Detroit. Of 682 departures recorded from October 2024 to July 2026, 75.9% 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
January2830▲ 7.1%
February2728▲ 3.7%
March3049▲ 63.3%
April3038▲ 26.7%
May2631▲ 19.2%
June42420.0%
July3046▲ 53.3%
August28––
September24––
October32–in progress
November20––
December27––
Year to date (Jan–Jul)213264▲ 23.9%

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
January96.3%90.0%▼ 6.5%
February88.9%53.6%▼ 39.7%
March100.0%87.0%▼ 13.0%
April66.7%97.2%▲ 45.8%
May61.5%77.4%▲ 25.8%
June61.9%52.9%▼ 14.5%
July57.7%75.0%▲ 30.0%
August92.3%––
September54.2%––
October59.4%–in progress
November52.9%––
December57.7%––
Year-to-date average (Jan–Jul)76.1%76.2%0.0%

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
January10▼ 100.0%
February00–
March03–
April02–
May00–
June08–
July42▼ 50.0%
August2––
September0––
October0–in progress
November3––
December1––
Year to date (Jan–Jul)515▲ 200.0%

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 96.0% 655
  • Cancelled 4.0% 27

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

On time, leg by leg

  1. ORD–DTW161 61.6%
  2. DTW–ORD135 62.7%
  3. MEM–MSP77 93.4%
  4. MCO–SLC62 69.4%
  5. IAH–MSP53 98.1%
  6. BNA–ATL31 96.6%
  7. ATL–SAT31 77.4%
  8. ATL–BNA31 92.9%

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

Legs flown under this number

8
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 28 28 96.4% 0
December 2024 26 25 88.0% 1
January 2025 28 27 96.3% 1
February 2025 27 27 88.9% 0
March 2025 30 30 100.0% 0
April 2025 30 30 66.7% 0
May 2025 26 26 61.5% 0
June 2025 42 42 61.9% 0
July 2025 30 26 57.7% 4
August 2025 28 26 92.3% 2
September 2025 24 24 54.2% 0
October 2025 32 32 59.4% 0
November 2025 20 17 52.9% 3
December 2025 27 26 57.7% 1
January 2026 30 30 90.0% 0
February 2026 28 28 53.6% 0
March 2026 49 46 87.0% 3
April 2026 38 36 97.2% 2
May 2026 31 31 77.4% 0
June 2026 42 34 52.9% 8
July 2026 46 44 75.0% 2

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