AA 990 then UA 8115 at O'Hare
Phoenix → Chicago → Las Vegas
Timetable, Chicago time
11:39AA 990 from Phoenix at the gate
15:06UA 8115 to Las Vegas leaves the gate
3 h 27 apart on the timetable
Today
From the airport’s board at 19:59 Chicago time
11:20AA 990 reached the gate19 min early
16:57UA 8115 left the gate1 h 51 late
5 h 37 between the gates
The last days
AA 990 and UA 8115 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.