AS426

AS426 (Alaska Airlines) is a multi-stop service on 7 routes, busiest Seattle to Dallas-Fort Worth. Of 489 departures recorded from October 2024 to July 2026, 72.9% 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 periods18 periods
PeriodDepartures 2025Departures 2026Change vs last year
January131▲ 3,000.0%
February–28–
March1317▲ 30.8%
April3010▼ 66.7%
May3130▼ 3.2%
June3029▼ 3.3%
July3031▲ 3.3%
August29––
September25––
October27–in progress
November30––
December31––

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 periods18 periods
PeriodOn time 2025On time 2026Change vs last year
January100.0%75.9%▼ 24.1%
February–82.1%–
March46.2%47.1%▲ 2.0%
April73.3%60.0%▼ 18.2%
May61.3%83.3%▲ 36.0%
June53.3%60.7%▲ 13.8%
July83.3%87.1%▲ 4.5%
August72.4%––
September84.0%––
October85.2%–in progress
November80.0%––
December63.3%––

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 periods18 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January02–
February–0–
March00–
April00–
May00–
June01–
July00–
August0––
September0––
October0–in progress
November0––
December1––

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 98.8% 483
  • Cancelled 1.2% 6

Share of all recorded flights in the period, all legs. · Oct 13, 2024 → Jul 31, 2026

On time, leg by leg

  1. SEA–DFW338 74.9%
  2. SEA–BUR51 80.0%
  3. SMF–SEA34 81.8%
  4. SEA–GEG34 61.8%

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

Legs flown under this number

4
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 13 12 91.7% 1
November 2024 21 21 76.2% 0
December 2024 2 1 0.0% 1
January 2025 1 1 100.0% 0
March 2025 13 13 46.2% 0
April 2025 30 30 73.3% 0
May 2025 31 31 61.3% 0
June 2025 30 30 53.3% 0
July 2025 30 30 83.3% 0
August 2025 29 29 72.4% 0
September 2025 25 25 84.0% 0
October 2025 27 27 85.2% 0
November 2025 30 30 80.0% 0
December 2025 31 30 63.3% 1
January 2026 31 29 75.9% 2
February 2026 28 28 82.1% 0
March 2026 17 17 47.1% 0
April 2026 10 10 60.0% 0
May 2026 30 30 83.3% 0
June 2026 29 28 60.7% 1
July 2026 31 31 87.1% 0

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