AS665

AS665 (Alaska Airlines) is a multi-stop service on 6 routes, busiest Ontario to Seattle. Of 268 departures recorded from November 2024 to July 2026, 73.0% 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 periods13 periods
PeriodDepartures 2025Departures 2026Change vs last year
January531▲ 520.0%
February–28–
March–29–
April–30–
May1411▼ 21.4%
June107▼ 30.0%
July–30–
August–––
September–––
October6–in progress
November29––
December15––

according to the US BTS · November 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 periods13 periods
PeriodOn time 2025On time 2026Change vs last year
January40.0%71.0%▲ 77.4%
February–78.6%–
March–96.3%–
April–93.1%–
May85.7%90.9%▲ 6.1%
June60.0%71.4%▲ 19.1%
July–50.0%–
August–––
September–––
October66.7%–in progress
November67.9%––
December57.1%––

according to the US BTS · November 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · November 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods13 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February–0–
March–2–
April–1–
May00–
June00–
July–0–
August–––
September–––
October0–in progress
November1––
December1––

according to the US BTS · November 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 98.1% 263
  • Cancelled 1.9% 5

Share of all recorded flights in the period, all legs. · Nov 22, 2024 → Jul 31, 2026

On time, leg by leg

  1. ONT–SEA125 73.0%
  2. SLC–SEA37 54.1%
  3. MSO–SEA34 96.9%

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

Legs flown under this number

3
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
November 2024 8 8 87.5% 0
December 2024 15 15 46.7% 0
January 2025 5 5 40.0% 0
May 2025 14 14 85.7% 0
June 2025 10 10 60.0% 0
October 2025 6 6 66.7% 0
November 2025 29 28 67.9% 1
December 2025 15 14 57.1% 1
January 2026 31 31 71.0% 0
February 2026 28 28 78.6% 0
March 2026 29 27 96.3% 2
April 2026 30 29 93.1% 1
May 2026 11 11 90.9% 0
June 2026 7 7 71.4% 0
July 2026 30 30 50.0% 0

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