ON TIMEBOARD

DL 654 on time

Delta Air Lines 654: San Jose to Atlanta at 6:35 a.m. (past 12 months)

On time
93%
361 flights · likely 89–95%
Cancelled
1.4%
of scheduled flights
Typical arrival
−15 min
median vs schedule
When late
+89 min
average delay
Similar flights
93%
DL, same route & hour

About 1 in 13 DL 654 flights from San Jose arrived 15+ minutes late, diverted or cancelled over the past year (7%); 1.4% were cancelled. The typical flight landed 15 minutes early.

DL 654: SJC → ATL

Scheduled to leave San Jose at 6:35 a.m. local time. Over the past year it arrived on time 93% of the time (361 flights), in line with other DL flights on the route at that hour (93%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 100% on time (30 flights)100SepOct 2025: 97% on time (31 flights)97OctNov 2025: 97% on time (30 flights)97NovDec 2025: 90% on time (31 flights)90DecJan 2026: 82% on time (28 flights)82JanFeb 2026: 100% on time (28 flights)100FebMar 2026: 84% on time (31 flights)84MarApr 2026: 100% on time (30 flights)100AprMay 2026: 90% on time (30 flights)90MayJun 2026: 93% on time (30 flights)93JunJul 2026: 87% on time (31 flights)87JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5396%
Tuesday5290%
Wednesday5194%
Thursday5296%
Friday5287%
Saturday5098%
Sunday5186%

Why it was late

Airline (crew, maintenance, ops) 44%Late inbound plane 27%Air traffic & airport (NAS) 17%Severe weather 13%

All flights SJC → ATL · Connecting off DL 654? Check the risk

Questions

How often is DL 654 from SJC to ATL late?

Delta Air Lines 654 from San Jose, CA to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 7% of 361 scheduled flights between September 2025 and August 2026. 1.4% 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 Delta Air Lines for today's flight. Method.