DL1423

DL1423 (Delta Air Lines) is a multi-stop service on 2 routes, busiest Salt Lake City to Sacramento. Of 1,302 departures recorded from October 2024 to July 2026, 86.9% 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
January62620.0%
February56560.0%
March62620.0%
April6050▼ 16.7%
May6258▼ 6.5%
June60600.0%
July62620.0%
August62––
September60––
October62–in progress
November60––
December62––
Year to date (Jan–Jul)424410▼ 3.3%

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
January87.1%80.7%▼ 7.4%
February83.9%87.5%▲ 4.3%
March83.9%83.3%▼ 0.6%
April85.0%94.0%▲ 10.6%
May85.5%87.9%▲ 2.9%
June96.7%83.3%▼ 13.8%
July87.1%90.3%▲ 3.7%
August88.7%––
September93.3%––
October80.7%–in progress
November85.0%––
December79.0%––
Year-to-date average (Jan–Jul)87.0%86.7%▼ 0.3%

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
January00–
February00–
March02–
April00–
May00–
June00–
July00–
August0––
September0––
October0–in progress
November0––
December0––
Year to date (Jan–Jul)02

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 99.8% 1,300
  • Cancelled 0.2% 2

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

On time, leg by leg

  1. SMF–SLC651 86.6%
  2. SLC–SMF651 87.1%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SMF SLC Sacramento International Airport – Salt Lake City International Airport 854 3.6 min 86.6% 651
SLC SMF Salt Lake City International Airport – Sacramento International Airport 854 5.0 min 87.1% 651
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 40 40 95.0% 0
November 2024 60 60 96.7% 0
December 2024 62 62 80.7% 0
January 2025 62 62 87.1% 0
February 2025 56 56 83.9% 0
March 2025 62 62 83.9% 0
April 2025 60 60 85.0% 0
May 2025 62 62 85.5% 0
June 2025 60 60 96.7% 0
July 2025 62 62 87.1% 0
August 2025 62 62 88.7% 0
September 2025 60 60 93.3% 0
October 2025 62 62 80.7% 0
November 2025 60 60 85.0% 0
December 2025 62 62 79.0% 0
January 2026 62 62 80.7% 0
February 2026 56 56 87.5% 0
March 2026 62 60 83.3% 2
April 2026 50 50 94.0% 0
May 2026 58 58 87.9% 0
June 2026 60 60 83.3% 0
July 2026 62 62 90.3% 0

How to read this chart

Loading the guide…