SY 1905 then UA 4500 at Detroit
Minneapolis → Detroit → Washington
Timetable, Detroit time
10:35SY 1905 from Minneapolis at the gate
19:45UA 4500 to Washington leaves the gate
9 h 10 apart on the timetable
The last days
SY 1905 and UA 4500 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.