QR 2137 then QF 4113 at San Francisco
Seattle → San Francisco → Dallas-Fort Worth
Timetable, San Francisco time
12:26QR 2137 from Seattle at the gatealso DE 5054, QR 8824
23:23QF 4113 to Dallas-Fort Worth leaves the gatealso GF 6708
10 h 57 apart on the timetable
The last days
QR 2137 and QF 4113 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.