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Flight Reliability

AS 618 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 618 moved between routes during this period. Numbers below combine all of them, so treat them as background, not a verdict. For a cleaner answer, check the route you are actually flying.

Combined across all its routes

90%
Arrive within 15 minutes
10 min early
Average arrival delay
1.2%
Cancelled
15 min early
Median arrival delay

Based on 322 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon87%(46 flights)
  • Tue96%(45 flights)
  • Wed92%(47 flights)
  • Thu93%(45 flights)
  • Fri85%(47 flights)
  • Sat93%(42 flights)
  • Sun87%(46 flights)
On-time by departure window
  • 6–9 AM93%(218 flights)
  • 9 AM–12 PM63%(19 flights)
  • 12–3 PM95%(56 flights)
  • 3–6 PM74%(19 flights)
  • 6–9 PM—(6 flights)
On-time trend by month
68%
May

Jun 87% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202587%30
July 202597%30
August 202587%31
September 2025100%30
October 2025100%10
November 202577%30
December 202592%13
January 202696%46
February 2026100%37
March 2026100%19
May 202668%38
Departures on time
90%
Diverted
0%
Flights flown
318
Months covered
12

Keep nerding

Based on 322 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.