AA 1997 then UA 638 at O'Hare
St Louis → Chicago → San Francisco
Timetable, Chicago time
09:00AA 1997 from St Louis at the gate
12:42UA 638 to San Francisco leaves the gate
3 h 42 apart on the timetable
The last 7 days both flew
Between the gates: AA 1997 reaching its gate to UA 638 leaving its gate.
3 h 54shortest
4 h 05typical
4 h 15longest
0 of 7 days had 15 min or more less than the timetable.
AA 1997 typically reached its gate 20 min early, UA 638 left 1 min early.
Times each day
| Day | AA 1997 at the gate | UA 638 left the gate | Between |
|---|---|---|---|
| Sat 31 Oct | 08:40 20 min early | 12:43 1 min late | 4 h 03 |
| Fri 30 Oct | 08:40 20 min early | 12:34 8 min early | 3 h 54 |
| Thu 29 Oct | 08:33 27 min early | 12:38 4 min early | 4 h 05 |
| Wed 28 Oct | 08:33 27 min early | 12:41 1 min early | 4 h 08 |
| Tue 27 Oct | 08:22 37 min early | 12:37 5 min early | 4 h 15 |
| Mon 26 Oct | 08:48 12 min early | 12:51 9 min late | 4 h 03 |
| Sun 25 Oct | 08:40 20 min early | 12:47 5 min late | 4 h 07 |
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.