DL329

DL329 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Atlanta to Santa Ana. Of 913 departures recorded from October 2024 to July 2026, 79.6% 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
January3831▼ 18.4%
February3631▼ 13.9%
March3435▲ 2.9%
April3034▲ 13.3%
May3132▲ 3.2%
June3654▲ 50.0%
July5662▲ 10.7%
August60––
September60––
October62–in progress
November60––
December50––
Year to date (Jan–Jul)261279▲ 6.9%

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
January73.0%89.3%▲ 22.4%
February66.7%83.9%▲ 25.8%
March88.2%82.9%▼ 6.1%
April90.0%88.2%▼ 2.0%
May77.4%71.9%▼ 7.2%
June80.6%83.3%▲ 3.4%
July89.1%80.7%▼ 9.5%
August70.0%––
September80.0%––
October74.2%–in progress
November75.0%––
December66.0%––
Year-to-date average (Jan–Jul)80.7%82.9%▲ 2.7%

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
January13▲ 200.0%
February00–
March00–
April00–
May00–
June00–
July10▼ 100.0%
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)23▲ 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 99.5% 908
  • Cancelled 0.5% 5

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

On time, leg by leg

  1. ATL–SNA627 83.1%
  2. SNA–ATL286 72.0%

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

Legs flown under this number

2
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 95.0% 0
November 2024 30 30 90.0% 0
December 2024 31 31 80.7% 0
January 2025 38 37 73.0% 1
February 2025 36 36 66.7% 0
March 2025 34 34 88.2% 0
April 2025 30 30 90.0% 0
May 2025 31 31 77.4% 0
June 2025 36 36 80.6% 0
July 2025 56 55 89.1% 1
August 2025 60 60 70.0% 0
September 2025 60 60 80.0% 0
October 2025 62 62 74.2% 0
November 2025 60 60 75.0% 0
December 2025 50 50 66.0% 0
January 2026 31 28 89.3% 3
February 2026 31 31 83.9% 0
March 2026 35 35 82.9% 0
April 2026 34 34 88.2% 0
May 2026 32 32 71.9% 0
June 2026 54 54 83.3% 0
July 2026 62 62 80.7% 0

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