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Flight Reliability

AS 15 · Alaska Airlines

Washington → San Diego (DCA–SAN)

66
Usually Fine
WanderNerd Reliability Score
69%
Arrive within 15 minutes
12 min
Average arrival delay
1.6%
Cancelled
5 min
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

Mornings have a slight edge.

Departures between 6–9 AM arrived on time 69% of the time, against 66% between 9 AM–12 PM.

Skip Saturday if you can.

AS 15 arrived on time 75% of the time on Mondays. On Saturdays: 63%.

Lagging the Alaska Airlines network.

AS 15 arrived on time 69% of the time, versus 80% across the Alaska Airlines network.

Trending in the right direction.

AS 15 arrived on time 79% of the time over the last three months in the data, compared with 62% in the three months before that.

The breakdown

On-time by weekday
  • Mon75%(51 flights)
  • Tue69%(52 flights)
  • Wed69%(51 flights)
  • Thu69%(51 flights)
  • Fri66%(47 flights)
  • Sat63%(51 flights)
  • Sun69%(52 flights)
On-time by departure window
  • 6–9 AM69%(300 flights)
  • 9 AM–12 PM66%(55 flights)
On-time trend by month
81%
May

Jun 67% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202571%31
August 202567%30
September 202559%29
October 202558%31
November 202577%26
December 202568%31
January 202671%28
February 202646%28
March 202677%31
April 202679%29
May 202681%31
Departures on time
73%
Diverted
0.8%
Flights flown
355
Months covered
12

Keep nerding

Based on 364 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.