UA 3377 then DL 1840 at O'Hare
Pittsburgh → Chicago → Salt Lake City
Timetable, Chicago time
08:30UA 3377 from Pittsburgh at the gate
19:15DL 1840 to Salt Lake City leaves the gate
10 h 45 apart on the timetable
The last days
UA 3377 and DL 1840 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.