AC 4339 then UA 8153 at San Francisco
Fresno → San Francisco → Washington
Timetable, San Francisco time
13:15AC 4339 from Fresno at the gate
22:53UA 8153 to Washington leaves the gate
9 h 38 apart on the timetable
The last days
AC 4339 and UA 8153 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.