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Flight Reliability

AS 670 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 670 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

74%
Arrive within 15 minutes
6 min
Average arrival delay
0.7%
Cancelled
2 min early
Median arrival delay

Based on 144 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon70%(23 flights)
  • Tue77%(22 flights)
  • Wed67%(21 flights)
  • Thu80%(20 flights)
  • Fri67%(21 flights)
  • Sat85%(13 flights)
  • Sun78%(23 flights)
On-time by departure window
  • 6–9 AM67%(79 flights)
  • 3–6 PM83%(63 flights)
  • 6–9 PM—(1 flights)
On-time trend by month
58%
May

Dec 43% → May 58% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202543%14
January 202674%27
February 202693%27
March 202659%27
April 202693%27
May 202658%12
Departures on time
78%
Diverted
0%
Flights flown
143
Months covered
8

Keep nerding

Based on 144 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.