ON TIMEBOARD

AS 227 on time

Alaska Airlines 227: New York to San Francisco at 9:30 a.m. (past 12 months)

On time
78%
344 flights · likely 73–82%
Cancelled
2.6%
of scheduled flights
Typical arrival
−9 min
median vs schedule
When late
+57 min
average delay
Similar flights
71%
AS, same route & hour

About 1 in 5 AS 227 flights from New York arrived 15+ minutes late, diverted or cancelled over the past year (22%); 2.6% were cancelled. The typical flight landed 9 minutes early.

AS 227: JFK → SFO

Scheduled to leave New York at 9:30 a.m. local time. Over the past year it arrived on time 78% of the time (344 flights), better than other AS flights on the route at that hour (71%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 93% on time (30 flights)93SepOct 2025: 77% on time (31 flights)77OctNov 2025: 87% on time (30 flights)87NovDec 2025: 74% on time (31 flights)74DecJan 2026: 70% on time (20 flights)70JanFeb 2026: 70% on time (23 flights)70FebMar 2026: 87% on time (31 flights)87MarApr 2026: 87% on time (30 flights)87AprMay 2026: 94% on time (31 flights)94MayJun 2026: 57% on time (30 flights)57JunJul 2026: 68% on time (31 flights)68JulAug 2026: 65% on time (26 flights)65Aug

By day of week

DayFlightsOn time
Monday5368%
Tuesday4680%
Wednesday4480%
Thursday5279%
Friday5281%
Saturday4584%
Sunday5275%

Why it was late

Air traffic & airport (NAS) 55%Airline (crew, maintenance, ops) 39%Severe weather 4%Security 1%

All flights JFK → SFO · Connecting off AS 227? Check the risk

Questions

How often is AS 227 from JFK to SFO late?

Alaska Airlines 227 from New York, NY to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 22% of 344 scheduled flights between September 2025 and August 2026. 2.6% 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.