WN 802 then WN 818 at Denver
Boston → Denver → Salt Lake City
Timetable, Denver time
12:35WN 802 from Boston at the gate
17:10WN 818 to Salt Lake City leaves the gate
4 h 35 apart on the timetable
The last days
WN 802 and WN 818 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.