DE 5253 then QF 4693 at San Francisco
Las Vegas → San Francisco → Chicago O'Hare
Timetable, San Francisco time
22:27DE 5253 from Las Vegas at the gatealso CX 7851
07:13QF 4693 to Chicago O'Hare leaves the gate
8 h 46 apart on the timetable, overnight
The last days
DE 5253 and QF 4693 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.