UA 3875 then AF 2159 at San Francisco
IAB → San Francisco → Minneapolis
Timetable, San Francisco time
01:46UA 3875 from IAB at the gate
06:05AF 2159 to Minneapolis leaves the gatealso WS 8499
4 h 19 apart on the timetable
The last days
UA 3875 and AF 2159 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.