AA 2333 then UA 8153 at San Francisco
Dallas-Fort Worth → San Francisco → Washington
Timetable, San Francisco time
19:25AA 2333 from Dallas-Fort Worth at the gatealso QF 4378
22:53UA 8153 to Washington leaves the gate
3 h 28 apart on the timetable
The last days
AA 2333 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.