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Flight Reliability

AS 204 · Alaska Airlines

This number covered several routes in this period.

One number, several routes.

Airlines reuse flight numbers, and AS 204 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

86%
Arrive within 15 minutes
2 min early
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 203 historical flights. Data through May 2026.

The breakdown

On-time by weekday
  • Mon90%(31 flights)
  • Tue88%(25 flights)
  • Wed92%(26 flights)
  • Thu89%(26 flights)
  • Fri78%(32 flights)
  • Sat79%(28 flights)
  • Sun88%(32 flights)
On-time by departure window
  • 6–9 AM90%(40 flights)
  • 9 AM–12 PM80%(91 flights)
  • 12–3 PM79%(24 flights)
  • 9 PM–12 AM98%(45 flights)
On-time trend by month
87%
May

Jun 100% → May 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%11
August 2025100%12
September 202597%30
December 202586%14
January 202685%20
February 202673%22
March 202670%30
April 202690%19
May 202687%30
Departures on time
84%
Diverted
1.5%
Flights flown
200
Months covered
11

Keep nerding

Based on 203 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.