DL2505

DL2505 (Delta Air Lines) is a multi-stop service on 10 routes, busiest Atlanta to Detroit. Of 272 departures recorded from October 2024 to June 2026, 80.1% 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 periods12 periods
PeriodDepartures 2025Departures 2026Change vs last year
January531▲ 520.0%
February–11–
March–3–
April3420▼ 41.2%
May3720▼ 45.9%
June710▲ 42.9%
July1––
August–––
September–––
October––in progress
November–––
December12––

according to the US BTS · October 2024 → June 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 periods12 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%71.0%▼ 29.0%
February–90.9%–
March–100.0%–
April97.1%57.9%▼ 40.4%
May67.6%90.0%▲ 33.2%
June71.4%80.0%▲ 12.0%
July0.0%––
August–––
September–––
October––in progress
November–––
December66.7%––

according to the US BTS · October 2024 → June 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → June 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods12 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February–0–
March–0–
April01–
May00–
June00–
July0––
August–––
September–––
October––in progress
November–––
December0––

according to the US BTS · October 2024 → June 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 99.6% 271
  • Cancelled 0.4% 1

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 5, 2026

On time, leg by leg

  1. ATL–DTW102 83.3%
  2. SEA–TUS38 76.3%
  3. LAS–AUS32 68.8%

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 31 31 77.4% 0
January 2025 5 5 100.0% 0
April 2025 34 34 97.1% 0
May 2025 37 37 67.6% 0
June 2025 7 7 71.4% 0
July 2025 1 1 0.0% 0
December 2025 12 12 66.7% 0
January 2026 31 31 71.0% 0
February 2026 11 11 90.9% 0
March 2026 3 3 100.0% 0
April 2026 20 19 57.9% 1
May 2026 20 20 90.0% 0
June 2026 10 10 80.0% 0

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