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Flight Reliability

AS 788 · Alaska Airlines

Kailua-Kona → San Francisco (KOA–SFO)85% of its flights flew this route. The rest (LIH–SFO, KOA–SJC) are included in these numbers.

80
Pretty Reliable
WanderNerd Reliability Score
74%
Arrive within 15 minutes
7 min
Average arrival delay
0.5%
Cancelled
4 min early
Median arrival delay

Based on 188 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

AS 788 departing between 3–6 PM arrived on time 78% of the time, versus 47% between 9 PM–12 AM.

Saturdays have been rough.

AS 788 arrived on time 83% of the time on Thursdays and just 62% on Saturdays. That gap is worth planning around.

Lagging the KOA–SFO route.

AS 788 arrived on time 74% of the time, versus 84% across the KOA–SFO route.

A bit behind the Alaska Airlines network.

AS 788 arrived on time 74% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon79%(19 flights)
  • Tue77%(30 flights)
  • Wed82%(11 flights)
  • Thu83%(30 flights)
  • Fri67%(18 flights)
  • Sat62%(39 flights)
  • Sun75%(40 flights)
On-time by departure window
  • 12–3 PM76%(92 flights)
  • 3–6 PM78%(76 flights)
  • 9 PM–12 AM47%(19 flights)
On-time trend by month
60%
Mar

Jun 82% → Mar 60% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%11
July 202583%18
August 202572%18
September 202582%17
October 202559%29
November 202577%26
December 202583%24
January 202678%18
February 202660%15
March 202660%10
Departures on time
61%
Diverted
0%
Flights flown
187
Months covered
11

Same route, other flights

Keep nerding

Based on 188 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.