DL 9970 then UA 1924 at San Francisco
Seattle → San Francisco → St Louis
Timetable, San Francisco time
11:15DL 9970 from Seattle at the gate
16:25UA 1924 to St Louis leaves the gatealso EK 6319, OZ 6343, NZ 9708
5 h 10 apart on the timetable
The last days
DL 9970 and UA 1924 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.
Later flights to St Louis
UA 812420:409 h 25 after DL 9970 on the timetable