Flight Time from Las Vegas (LAS) to Busan (PUS)

The 9,670 km between LAS and PUS converts to 12.04 hours of flying under the 850 km/h + 40 min model. The slider's steps are anchored on typical hub dwell times, which is why the totals sit at 15.5 h and 21.5 h rather than pure multiples.

At 9,670 km, crew and aircraft rotation limits start to shape schedules — expect either a genuine non-stop or a single well-placed technical stop rather than casual connections. Between UTC−8 and UTC+9 you gain a 17-hour head start on the day — worth remembering when you schedule the first dinner or call.

Seoul (ICN) is the nearest alternative endpoint, 325 km from Busan — close enough that some fares from LAS price it as the same destination. From LAS, reaching ICN instead takes about 1 h — less airborne time than the 12.04 h non-stop, and the surface leg into Busan still has to be won back.

Where a matching calculator page exists (LAS → ICN, LAS → KIX among them) the links are in the Related list below. Weigh each alternative against its back-distance to Busan — from LAS, a cheap fare hundreds of km from your actual destination is rarely cheap once the surface leg is priced.

Put a departure hour on the math: wheels-up at 10:00 from LAS puts you on the ground at PUS around 15:02 local time, once the 17-hour gain is applied. Budget the ground side too: a standard day runs $134 in Busan versus $210 in Las Vegas (hotel, three meals, two transit rides), so the arrival city sets the trip's marginal cost.

A $76 per-day gap favors staying longer in Busan and moving on from Las Vegas quickly. With 17 hours gained eastbound, the 9,670 km out to Busan ends in a serious jet-lag bill — plan a quiet first day.