ON TIMEBOARD

DL 656 on time

Delta Air Lines 656: Atlanta to San Francisco at 9:59 p.m. (past 12 months)

On time
70%
267 flights · likely 65–76%
Cancelled
1.5%
of scheduled flights
Typical arrival
+1 min
median vs schedule
When late
+53 min
average delay
Similar flights
74%
DL, same route & hour

About 1 in 3 DL 656 flights from Atlanta arrived 15+ minutes late, diverted or cancelled over the past year (30%); 1.5% were cancelled. The typical flight landed 1 minutes late.

DL 656: ATL → SFO

Scheduled to leave Atlanta at 9:59 p.m. local time. Over the past year it arrived on time 70% of the time (267 flights), worse than other DL flights on the route at that hour (74%). Last seen in the data Aug 31, 2026.

Usually Delta Air Lines's last flight of the day from Atlanta to San Francisco (100% of days). Delta Air Lines's last ATL–SFO flight was cancelled 0.8% of the time, against 0.6% for its earlier ones. If it's cancelled, the next Delta Air Lines flight is usually around 8:25 a.m. the next morning.

Month by month

30%65%100%Sep 2025: too few flights (12 flights)SepOct 2025: 65% on time (26 flights)65OctNov 2025: 68% on time (22 flights)68NovDec 2025: 71% on time (31 flights)71DecJan 2026: 81% on time (31 flights)81JanFeb 2026: 75% on time (28 flights)75FebMar 2026: 62% on time (21 flights)62MarApr 2026: 72% on time (18 flights)72AprMay 2026: 59% on time (17 flights)59MayJun 2026: 60% on time (15 flights)60JunJul 2026: 38% on time (16 flights)38JulAug 2026: 87% on time (30 flights)87Aug

By day of week

DayFlightsOn time
Monday4971%
Tuesday2576%
Wednesday2688%
Thursday4978%
Friday4963%
Saturday2176%
Sunday4854%

Why it was late

Airline (crew, maintenance, ops) 51%Air traffic & airport (NAS) 32%Late inbound plane 16%Severe weather 1%

All flights ATL → SFO · Connecting off DL 656? Check the risk

Questions

How often is DL 656 from ATL to SFO late?

Delta Air Lines 656 from Atlanta, GA to San Francisco, CA arrived 15 or more minutes late, was diverted or was cancelled on 30% of 267 scheduled flights between September 2025 and August 2026. 1.5% 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.