LR 654 then DL 5517 at Dulles
Guatemala City → Washington → Detroit
Timetable, Washington time
00:42LR 654 from Guatemala City at the gate
11:37DL 5517 to Detroit leaves the gate
10 h 55 apart on the timetable
The last days
LR 654 and DL 5517 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.