AS651

AS651 (Alaska Airlines) is a multi-stop service on 9 routes, busiest Phoenix to Seattle. Of 159 departures recorded from October 2024 to July 2026, 86.1% 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 periods9 periods
PeriodDepartures 2025Departures 2026Change vs last year
January45▲ 25.0%
February–2–
March–1–
April–1–
May–1–
June–21–
July–31–
August–––
September–––
October––in progress
November–––
December16––

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 periods9 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%100.0%0.0%
February–100.0%–
March–100.0%–
April–100.0%–
May–100.0%–
June–95.2%–
July–87.1%–
August–––
September–––
October––in progress
November–––
December62.5%––

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 periods9 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February–0–
March–0–
April–0–
May–0–
June–0–
July–0–
August–––
September–––
October––in progress
November–––
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 99.4% 158
  • Cancelled 0.6% 1

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

On time, leg by leg

  1. PHX–SEA81 86.3%
  2. SIT–SEA52 90.4%

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 27 27 88.9% 0
December 2024 30 29 75.9% 1
January 2025 4 4 100.0% 0
December 2025 16 16 62.5% 0
January 2026 5 5 100.0% 0
February 2026 2 2 100.0% 0
March 2026 1 1 100.0% 0
April 2026 1 1 100.0% 0
May 2026 1 1 100.0% 0
June 2026 21 21 95.2% 0
July 2026 31 31 87.1% 0

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