AS688

AS688 (Alaska Airlines) is a multi-stop service on 2 routes, busiest Seattle to Las Vegas. Of 460 departures recorded from October 2024 to June 2026, 66.2% 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
January2330▲ 30.4%
February2326▲ 13.0%
March2827▼ 3.6%
April2027▲ 35.0%
May1730▲ 76.5%
June269▼ 65.4%
July27––
August16––
September–––
October6–in progress
November29––
December25––
Year to date (Jan–Jun)137149▲ 8.8%

according to the US BTS · October 2024 → June 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
January69.6%73.3%▲ 5.4%
February73.9%76.9%▲ 4.1%
March67.9%63.0%▼ 7.2%
April75.0%44.4%▼ 40.7%
May58.8%30.0%▼ 49.0%
June64.0%33.3%▼ 47.9%
July70.4%––
August68.8%––
September–––
October33.3%–in progress
November82.8%––
December58.3%––
Year-to-date average (Jan–Jun)68.2%53.5%▼ 21.6%

according to the US BTS · October 2024 → June 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → June 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–
March00–
April00–
May00–
June10▼ 100.0%
July0––
August0––
September–––
October0–in progress
November0––
December1––
Year to date (Jan–Jun)10▼ 100.0%

according to the US BTS · October 2024 → June 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 99.6% 458
  • Cancelled 0.4% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jun 9, 2026

On time, leg by leg

  1. SEA–LAS251 72.0%
  2. SEA–SFO209 59.1%

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

Legs flown under this number

2
RoutesDistance (km)Avg delay On timeDepartures
SEA LAS Seattle–Tacoma International Airport – Harry Reid International Airport 1,395 14.2 min 72.0% 251
SEA SFO Seattle–Tacoma International Airport – San Francisco International Airport 1,093 23.9 min 59.1% 209
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 90.0% 0
November 2024 29 29 86.2% 0
December 2024 22 22 63.6% 0
January 2025 23 23 69.6% 0
February 2025 23 23 73.9% 0
March 2025 28 28 67.9% 0
April 2025 20 20 75.0% 0
May 2025 17 17 58.8% 0
June 2025 26 25 64.0% 1
July 2025 27 27 70.4% 0
August 2025 16 16 68.8% 0
October 2025 6 6 33.3% 0
November 2025 29 29 82.8% 0
December 2025 25 24 58.3% 1
January 2026 30 30 73.3% 0
February 2026 26 26 76.9% 0
March 2026 27 27 63.0% 0
April 2026 27 27 44.4% 0
May 2026 30 30 30.0% 0
June 2026 9 9 33.3% 0

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