ON TIMEBOARD

AS 573 on time

Alaska Airlines 573: Newark to San Diego at 6:29 p.m. (past 12 months)

On time
69%
158 flights · likely 61–76%
Cancelled
3.8%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+69 min
average delay
Similar flights
56%
AS, same route & hour

About 1 in 3 AS 573 flights from Newark arrived 15+ minutes late, diverted or cancelled over the past year (31%); 3.8% were cancelled. The typical flight landed 9 minutes early.

AS 573: EWR → SAN

Scheduled to leave Newark at 6:29 p.m. local time. Over the past year it arrived on time 69% of the time (158 flights), better than other AS flights on the route at that hour (56%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Dec 2025: too few flights (14 flights)DecJan 2026: too few flights (6 flights)JanMar 2026: too few flights (13 flights)MarApr 2026: 87% on time (30 flights)87AprMay 2026: too few flights (12 flights)MayJun 2026: 62% on time (21 flights)62JunJul 2026: 58% on time (31 flights)58JulAug 2026: 58% on time (31 flights)58Aug

By day of week

DayFlightsOn time
Monday2365%
Tuesday2277%
Wednesday2186%
Thursday2352%
Friday2357%
Saturday2378%
Sunday2370%

Why it was late

Air traffic & airport (NAS) 37%Severe weather 27%Late inbound plane 19%Airline (crew, maintenance, ops) 16%Security 1%

All flights EWR → SAN · Connecting off AS 573? Check the risk

Questions

How often is AS 573 from EWR to SAN late?

Alaska Airlines 573 from Newark, NJ to San Diego, CA arrived 15 or more minutes late, was diverted or was cancelled on 31% of 158 scheduled flights between September 2025 and August 2026. 3.8% 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.