AC 3997 then UA 3906 at San Francisco
Boise → San Francisco → Chicago O'Hare
Timetable, San Francisco time
09:23AC 3997 from Boise at the gatealso UA 4639, NH 7335
19:30UA 3906 to Chicago O'Hare leaves the gate
10 h 07 apart on the timetable
The last days
AC 3997 and UA 3906 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.
Later flights to Chicago O'Hare
UA 197122:4513 h 22 after AC 3997 on the timetable
AC 543222:4513 h 22 after AC 3997 on the timetable
NZ 930322:4513 h 22 after AC 3997 on the timetable