DL933

DL933 (Delta Air Lines) is a multi-stop service on 4 routes, busiest Atlanta to San Jose. Of 619 departures recorded from October 2024 to July 2026, 82.8% 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
January3427▼ 20.6%
February2814▼ 50.0%
March3125▼ 19.4%
April30300.0%
May31310.0%
June30300.0%
July31310.0%
August31––
September30––
October31–in progress
November25––
December28––
Year to date (Jan–Jul)215188▼ 12.6%

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
January84.9%77.8%▼ 8.3%
February82.1%100.0%▲ 21.7%
March74.2%56.0%▼ 24.5%
April90.0%96.7%▲ 7.4%
May80.7%74.2%▼ 8.0%
June79.3%89.7%▲ 13.1%
July66.7%56.7%▼ 15.0%
August80.7%––
September96.7%––
October93.6%–in progress
November91.7%––
December96.3%––
Year-to-date average (Jan–Jul)79.7%78.7%▼ 1.2%

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–
March00–
April00–
May00–
June110.0%
July110.0%
August0––
September0––
October0–in progress
November1––
December1––
Year to date (Jan–Jul)32▼ 33.3%

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 98.9% 612
  • Cancelled 1.1% 7

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

On time, leg by leg

  1. ATL–SJC565 83.5%
  2. MSY–LAX36 72.2%

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 14 14 92.9% 0
November 2024 19 19 89.5% 0
December 2024 38 38 86.8% 0
January 2025 34 33 84.9% 1
February 2025 28 28 82.1% 0
March 2025 31 31 74.2% 0
April 2025 30 30 90.0% 0
May 2025 31 31 80.7% 0
June 2025 30 29 79.3% 1
July 2025 31 30 66.7% 1
August 2025 31 31 80.7% 0
September 2025 30 30 96.7% 0
October 2025 31 31 93.6% 0
November 2025 25 24 91.7% 1
December 2025 28 27 96.3% 1
January 2026 27 27 77.8% 0
February 2026 14 14 100.0% 0
March 2026 25 25 56.0% 0
April 2026 30 30 96.7% 0
May 2026 31 31 74.2% 0
June 2026 30 29 89.7% 1
July 2026 31 30 56.7% 1

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