AS653

AS653 (Alaska Airlines) is a multi-stop service on 5 routes, busiest Salt Lake City to Seattle. Of 230 departures recorded from October 2024 to July 2026, 86.3% 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 periods11 periods
PeriodDepartures 2025Departures 2026Change vs last year
January–24–
February–24–
March531▲ 520.0%
April930▲ 233.3%
May–12–
June–21–
July–31–
August–––
September–––
October––in progress
November2––
December12––

according to the US BTS · October 2024 → July 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 periods11 periods
PeriodOn time 2025On time 2026Change vs last year
January–91.7%–
February–87.5%–
March100.0%93.3%▼ 6.7%
April100.0%96.7%▼ 3.3%
May–100.0%–
June–66.7%–
July–74.2%–
August–––
September–––
October––in progress
November100.0%––
December83.3%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods11 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January–0–
February–0–
March01–
April00–
May–1–
June–0–
July–0–
August–––
September–––
October––in progress
November0––
December0––

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 98.7% 227
  • Cancelled 1.3% 3

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

On time, leg by leg

  1. SLC–SEA127 92.1%
  2. SEA–KTN52 71.2%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SLC SEA Salt Lake City International Airport – Seattle–Tacoma International Airport 1,107 2.6 min 92.1% 127
SEA KTN Seattle–Tacoma International Airport – Ketchikan International Airport 1,093 12.6 min 71.2% 52
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 17 16 75.0% 1
November 2024 12 12 83.3% 0
March 2025 5 5 100.0% 0
April 2025 9 9 100.0% 0
November 2025 2 2 100.0% 0
December 2025 12 12 83.3% 0
January 2026 24 24 91.7% 0
February 2026 24 24 87.5% 0
March 2026 31 30 93.3% 1
April 2026 30 30 96.7% 0
May 2026 12 11 100.0% 1
June 2026 21 21 66.7% 0
July 2026 31 31 74.2% 0

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