WN 2986 then WN 3531 at Salt Lake City
Chicago Midway → Salt Lake City → San Diego
Timetable, Salt Lake City time
12:40WN 2986 from Chicago Midway at the gate
16:10WN 3531 to San Diego leaves the gate
3 h 30 apart on the timetable
The last days
WN 2986 and WN 3531 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.