UA 540 then AA 3977 at O'Hare
San Diego → Chicago → Detroit
Timetable, Chicago time
04:34UA 540 from San Diego at the gate
10:30AA 3977 to Detroit leaves the gate
5 h 56 apart on the timetable
The last 9 days both flew
Between the gates: UA 540 reaching its gate to AA 3977 leaving its gate.
5 h 59shortest
6 h 14typical
7 h 51longest
0 of 9 days had 15 min or more less than the timetable.
UA 540 typically reached its gate 23 min early, AA 3977 left 6 min early.
Times each day
| Day | UA 540 at the gate | AA 3977 left the gate | Between |
|---|---|---|---|
| Sat 31 Oct | 04:09 25 min early | 10:23 7 min early | 6 h 14 |
| Fri 30 Oct | 03:58 36 min early | 10:25 5 min early | 6 h 27 |
| Thu 29 Oct | 04:06 28 min early | 11:17 47 min late | 7 h 11 |
| Wed 28 Oct | 04:13 21 min early | 12:04 1 h 34 late | 7 h 51 |
| Tue 27 Oct | 04:17 17 min early | 10:22 8 min early | 6 h 05 |
| Mon 26 Oct | 04:10 24 min early | 10:24 6 min early | 6 h 14 |
| Sun 25 Oct | 04:10 23 min early | 10:22 8 min early | 6 h 12 |
| Sat 24 Oct | 04:25 8 min early | 10:24 6 min early | 5 h 59 |
| Fri 23 Oct | 04:23 10 min early | 10:24 6 min early | 6 h 01 |
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.