Skip to content
WanderNerd
Check a flight

Flight Reliability

AS 5 · Alaska Airlines

Washington → Los Angeles (DCA–LAX)

69
Usually Fine
WanderNerd Reliability Score
68%
Arrive within 15 minutes
12 min
Average arrival delay
1.1%
Cancelled
2 min
Median arrival delay

Based on 364 historical flights. Data through May 2026.

What the data says

The 6–9 AM departure wins.

AS 5 departing between 6–9 AM arrived on time 84% of the time, versus 66% between 9 AM–12 PM.

Thursday is the weak spot.

AS 5 arrived on time 75% of the time on Sundays. On Thursdays: 63%.

A bit behind the DCA–LAX route.

AS 5 arrived on time 68% of the time, versus 75% across the DCA–LAX route.

Lagging the Alaska Airlines network.

AS 5 arrived on time 68% of the time, versus 80% across the Alaska Airlines network.

The breakdown

On-time by weekday
  • Mon74%(50 flights)
  • Tue73%(51 flights)
  • Wed64%(52 flights)
  • Thu63%(51 flights)
  • Fri65%(51 flights)
  • Sat67%(52 flights)
  • Sun75%(51 flights)
On-time by departure window
  • 6–9 AM84%(56 flights)
  • 9 AM–12 PM66%(302 flights)
On-time trend by month
70%
May

Jun 67% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202552%31
August 202573%30
September 202587%30
October 202574%31
November 202572%29
December 202552%31
January 202645%29
February 202659%27
March 202687%31
April 202683%29
May 202670%30
Departures on time
63%
Diverted
0.5%
Flights flown
358
Months covered
12

Same route, other flights

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.