DL 273 then DL 353 at JFK
Lisbon → New York → Los Angeles
Timetable, New York time
13:13DL 273 from Lisbon at the gate
18:00DL 353 to Los Angeles leaves the gate
4 h 47 apart on the timetable
Today
From the airport’s board at 13:09 New York time
13:45DL 273 expected at the gate32 min late
18:00DL 353 due to leave, no estimate yet
4 h 15 between the gates, on these times
The last days
DL 273 and DL 353 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.