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Flight Reliability

AS 2478 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 2478 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

88%
Arrive within 15 minutes
1 min
Average arrival delay
2.3%
Cancelled
6 min early
Median arrival delay

Based on 175 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon88%(25 flights)
  • Tue83%(23 flights)
  • Wed92%(24 flights)
  • Thu92%(24 flights)
  • Fri100%(25 flights)
  • Sat88%(24 flights)
  • Sun77%(26 flights)
On-time by departure window
  • 6–9 AM97%(32 flights)
  • 6–9 PM—(5 flights)
  • 9 PM–12 AM87%(134 flights)
On-time trend by month
91%
May

Jun 79% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202579%24
July 202579%29
August 202586%29
September 202588%24
October 2025100%13
February 2026100%15
March 202694%17
May 202691%11
Departures on time
85%
Diverted
0%
Flights flown
171
Months covered
9

Keep nerding

Based on 175 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.