ON TIMEBOARD

AS 3450 on time

Alaska Airlines 3450: San Francisco to Santa Ana at 9:28 a.m. (past 12 months)

On time
75%
280 flights · likely 70–80%
Cancelled
1.1%
of scheduled flights
Typical arrival
−4 min
median vs schedule
When late
+53 min
average delay
Similar flights
75%
AS, same route & hour

About 1 in 4 AS 3450 flights from San Francisco arrived 15+ minutes late, diverted or cancelled over the past year (25%); 1.1% were cancelled. The typical flight landed 4 minutes early.

AS 3450: SFO → SNA

Scheduled to leave San Francisco at 9:28 a.m. local time, operated by SkyWest as OO 3450. Over the past year it arrived on time 75% of the time (280 flights), in line with other AS flights on the route at that hour (75%). Last seen in the data Aug 31, 2026.

Month by month

30%65%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: too few flights (8 flights)OctNov 2025: 74% on time (27 flights)74NovDec 2025: 81% on time (26 flights)81DecJan 2026: 90% on time (30 flights)90JanFeb 2026: 82% on time (28 flights)82FebMar 2026: 90% on time (29 flights)90MarApr 2026: 71% on time (17 flights)71AprMay 2026: 74% on time (19 flights)74MayJun 2026: 42% on time (24 flights)42JunJul 2026: 44% on time (18 flights)44JulAug 2026: 63% on time (24 flights)63Aug

By day of week

DayFlightsOn time
Monday4276%
Tuesday4473%
Wednesday4283%
Thursday3974%
Friday3871%
Saturday4480%
Sunday3168%

Why it was late

Late inbound plane 49%Air traffic & airport (NAS) 37%Airline (crew, maintenance, ops) 12%Severe weather 2%

All flights SFO → SNA · Connecting off AS 3450? Check the risk

Questions

How often is AS 3450 from SFO to SNA late?

Alaska Airlines 3450 from San Francisco, CA to Santa Ana, CA arrived 15 or more minutes late, was diverted or was cancelled on 25% of 280 scheduled flights between September 2025 and August 2026. 1.1% 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.