UA 503 then AA 821 at O'Hare
Boston → Chicago → San Francisco
Timetable, Chicago time
12:29UA 503 from Boston at the gate
15:10AA 821 to San Francisco leaves the gate
2 h 41 apart on the timetable
Today
From the airport’s board at 15:37 Chicago time
11:52UA 503 reached the gate37 min early
15:05AA 821 left the gate5 min early
3 h 13 between the gates
The last 3 days both flew
Between the gates: UA 503 reaching its gate to AA 821 leaving its gate.
2 h 43shortest
3 h 46typical
4 h 20longest
0 of 3 days had 15 min or more less than the timetable.
UA 503 typically reached its gate 29 min early, AA 821 left 26 min late.
Times each day
| Day | UA 503 at the gate | AA 821 left the gate | Between |
|---|---|---|---|
| Tue 3 Nov | 12:00 29 min early | 16:20 1 h 10 late | 4 h 20 |
| Mon 2 Nov | 11:50 39 min early | 15:36 26 min late | 3 h 46 |
| Sun 1 Nov | 12:23 25 min early | 15:06 4 min early | 2 h 43 |
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.