WN 3667 then AF 8 at Boston
St Louis → Boston → New York JFK
Timetable, Boston time
16:50WN 3667 from St Louis at the gate
20:15AF 8 to New York JFK leaves the gate
3 h 25 apart on the timetable
The last days
WN 3667 and AF 8 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.