AS959

AS959 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to Spokane. Of 585 departures recorded from October 2024 to July 2026, 77.9% 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 periods17 periods
PeriodDepartures 2025Departures 2026Change vs last year
January3031▲ 3.3%
February28280.0%
March31310.0%
April30300.0%
May31310.0%
June30300.0%
July3031▲ 3.3%
August31––
September30––
October25–in progress
November–––
December–––
Year to date (Jan–Jul)210212▲ 1.0%

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 periods17 periods
PeriodOn time 2025On time 2026Change vs last year
January80.0%83.9%▲ 4.8%
February85.7%96.4%▲ 12.5%
March74.2%86.2%▲ 16.2%
April76.7%93.3%▲ 21.7%
May71.0%90.3%▲ 27.3%
June43.3%96.7%▲ 123.1%
July51.7%89.7%▲ 73.4%
August58.1%––
September90.0%––
October70.8%–in progress
November–––
December–––
Year-to-date average (Jan–Jul)68.9%90.9%▲ 31.9%

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 periods17 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March02–
April00–
May00–
June00–
July12▲ 100.0%
August0––
September0––
October1–in progress
November–––
December–––
Year to date (Jan–Jul)14▲ 300.0%

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 99.0% 579
  • Cancelled 1.0% 6

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

On time, leg by leg

  1. SEA–GEG373 70.6%
  2. SMF–OGG212 90.9%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SEA GEG Seattle–Tacoma International Airport – Spokane International Airport 359 11.4 min 70.6% 373
SMF OGG Sacramento International Airport – Kahului International Airport 3,867 8.1 min 90.9% 212
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 75.0% 0
November 2024 27 27 81.5% 0
December 2024 30 30 63.3% 0
January 2025 30 30 80.0% 0
February 2025 28 28 85.7% 0
March 2025 31 31 74.2% 0
April 2025 30 30 76.7% 0
May 2025 31 31 71.0% 0
June 2025 30 30 43.3% 0
July 2025 30 29 51.7% 1
August 2025 31 31 58.1% 0
September 2025 30 30 90.0% 0
October 2025 25 24 70.8% 1
January 2026 31 31 83.9% 0
February 2026 28 28 96.4% 0
March 2026 31 29 86.2% 2
April 2026 30 30 93.3% 0
May 2026 31 31 90.3% 0
June 2026 30 30 96.7% 0
July 2026 31 29 89.7% 2

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