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Flight Reliability

AS 687 · Alaska Airlines

SBA → Seattle (SBA–SEA)

89
Pretty Reliable
WanderNerd Reliability Score
86%
Arrive within 15 minutes
4 min early
Average arrival delay
1.4%
Cancelled
11 min early
Median arrival delay

Based on 207 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

AS 687 departing between 12–3 PM arrived on time 91% of the time, versus 84% between 6–9 PM.

Sunday scaries are real for this one.

AS 687 arrived on time 100% of the time on Tuesdays and just 78% on Sundays. That gap is worth planning around.

A bit ahead of the SBA–SEA route.

AS 687 arrived on time 86% of the time, versus 79% across the SBA–SEA route.

A bit ahead of the Alaska Airlines network.

AS 687 arrived on time 86% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon81%(31 flights)
  • Tue100%(29 flights)
  • Wed82%(27 flights)
  • Thu83%(29 flights)
  • Fri90%(30 flights)
  • Sat92%(26 flights)
  • Sun78%(32 flights)
On-time by departure window
  • 12–3 PM91%(68 flights)
  • 6–9 PM84%(136 flights)
On-time trend by month
83%
May

Nov 90% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202590%29
December 202583%29
January 202690%29
February 202696%28
March 202680%30
April 202680%30
May 202683%23
Departures on time
83%
Diverted
0%
Flights flown
204
Months covered
8

Same route, other flights

Keep nerding

Based on 207 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.