DL453

DL453 (Delta Air Lines) is a multi-stop service on 6 routes, busiest Atlanta to Salt Lake City. Of 617 departures recorded from October 2024 to July 2026, 71.6% 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
January2730▲ 11.1%
February28280.0%
March31310.0%
April30300.0%
May31310.0%
June30300.0%
July31310.0%
August31––
September28––
October30–in progress
November30––
December27––
Year to date (Jan–Jul)208211▲ 1.4%

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
January73.1%66.7%▼ 8.8%
February82.1%82.1%0.0%
March77.4%80.0%▲ 3.3%
April63.3%76.7%▲ 21.1%
May54.8%54.8%0.0%
June34.5%72.4%▲ 110.0%
July58.1%58.1%0.0%
August67.7%––
September82.1%––
October86.7%–in progress
November73.3%––
December81.5%––
Year-to-date average (Jan–Jul)63.3%70.1%▲ 10.7%

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
January10▼ 100.0%
February00–
March01–
April00–
May00–
June110.0%
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)220.0%

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 99.4% 613
  • Cancelled 0.6% 4

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. ATL–SLC553 69.4%
  2. PHX–ATL38 100.0%

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 12 12 75.0% 0
November 2024 22 22 100.0% 0
December 2024 18 18 100.0% 0
January 2025 27 26 73.1% 1
February 2025 28 28 82.1% 0
March 2025 31 31 77.4% 0
April 2025 30 30 63.3% 0
May 2025 31 31 54.8% 0
June 2025 30 29 34.5% 1
July 2025 31 31 58.1% 0
August 2025 31 31 67.7% 0
September 2025 28 28 82.1% 0
October 2025 30 30 86.7% 0
November 2025 30 30 73.3% 0
December 2025 27 27 81.5% 0
January 2026 30 30 66.7% 0
February 2026 28 28 82.1% 0
March 2026 31 30 80.0% 1
April 2026 30 30 76.7% 0
May 2026 31 31 54.8% 0
June 2026 30 29 72.4% 1
July 2026 31 31 58.1% 0

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