WN 261 then UA 1593 at San Francisco
Austin → San Francisco → Houston
Timetable, San Francisco time
16:20WN 261 from Austin at the gate
23:15UA 1593 to Houston leaves the gatealso EK 6028, NZ 9192
6 h 55 apart on the timetable
The last days
WN 261 and UA 1593 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.