UA 1883 then QF 3789 at San Francisco
Houston → San Francisco → Portland (Oregon)
Timetable, San Francisco time
07:28UA 1883 from Houston at the gatealso EK 6028, NZ 9216
18:59QF 3789 to Portland (Oregon) leaves the gate
11 h 31 apart on the timetable
The last days
UA 1883 and QF 3789 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.