ON TIMEBOARD

AS 8 on time

Alaska Airlines 8: San Francisco to Washington at 9:39 a.m. (past 12 months)

On time
77%
363 flights · likely 73–81%
Cancelled
0.8%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+51 min
average delay
Similar flights
77%
AS, same route & hour

About 1 in 4 AS 8 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (23%); 0.8% were cancelled. The typical flight landed 11 minutes early.

AS 8: SFO → DCA

Scheduled to leave San Francisco at 9:39 a.m. local time. Over the past year it arrived on time 77% of the time (363 flights), in line with other AS flights on the route at that hour (77%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 87% on time (30 flights)87SepOct 2025: 74% on time (31 flights)74OctNov 2025: 86% on time (29 flights)86NovDec 2025: 81% on time (31 flights)81DecJan 2026: 74% on time (31 flights)74JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 74% on time (31 flights)74MarApr 2026: 80% on time (30 flights)80AprMay 2026: 74% on time (31 flights)74MayJun 2026: 80% on time (30 flights)80JunJul 2026: 70% on time (30 flights)70JulAug 2026: 68% on time (31 flights)68Aug

By day of week

DayFlightsOn time
Monday5370%
Tuesday5285%
Wednesday5277%
Thursday5171%
Friday5269%
Saturday5188%
Sunday5283%

Why it was late

Late inbound plane 45%Air traffic & airport (NAS) 39%Airline (crew, maintenance, ops) 15%Security 1%

All flights SFO → DCA · Connecting off AS 8? Check the risk

Questions

How often is AS 8 from SFO to DCA late?

Alaska Airlines 8 from San Francisco, CA to Washington, DC arrived 15 or more minutes late, was diverted or was cancelled on 23% of 363 scheduled flights between September 2025 and August 2026. 0.8% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Alaska Airlines for today's flight. Method.