AS1305

AS1305 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Los Angeles to Seattle. Of 378 departures recorded from May 2025 to July 2026, 67.6% 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 periods15 periods
PeriodDepartures 2025Departures 2026Change vs last year
January–24–
February–24–
March–27–
April–23–
May1723▲ 35.3%
June2629▲ 11.5%
July2731▲ 14.8%
August25––
September25––
October25–in progress
November25––
December27––

according to the US BTS · May 2025 → 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 periods15 periods
PeriodOn time 2025On time 2026Change vs last year
January–58.3%–
February–62.5%–
March–65.4%–
April–56.5%–
May76.5%56.5%▼ 26.1%
June68.0%34.5%▼ 49.3%
July80.0%38.7%▼ 51.6%
August76.0%––
September95.8%––
October91.7%–in progress
November96.0%––
December72.0%––

according to the US BTS · May 2025 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · May 2025 → July 2026

Cancelled departures by month

All legs combined
The most recent periods15 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January–0–
February–0–
March–1–
April–0–
May00–
June10▼ 100.0%
July20▼ 100.0%
August0––
September1––
October1–in progress
November0––
December2––

according to the US BTS · May 2025 → 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 97.9% 370
  • Cancelled 2.1% 8

Share of all recorded flights in the period, all legs. · May 15, 2025 → Jul 31, 2026

Legs flown under this number

1
RoutesDistance (km)Avg delay On timeDepartures
LAX SEA Los Angeles International Airport – Seattle–Tacoma International Airport 1,537 18.3 min 67.0% 350
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
May 2025 17 17 76.5% 0
June 2025 26 25 68.0% 1
July 2025 27 25 80.0% 2
August 2025 25 25 76.0% 0
September 2025 25 24 95.8% 1
October 2025 25 24 91.7% 1
November 2025 25 25 96.0% 0
December 2025 27 25 72.0% 2
January 2026 24 24 58.3% 0
February 2026 24 24 62.5% 0
March 2026 27 26 65.4% 1
April 2026 23 23 56.5% 0
May 2026 23 23 56.5% 0
June 2026 29 29 34.5% 0
July 2026 31 31 38.7% 0

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