Flight Time from Las Vegas (LAS) to Bangkok (BKK)

Non-stop, the LAS–BKK sector prices out at 16.34 hours — 13,321 km at 850 km/h plus 40 minutes of taxi, climb and approach. The slider's steps are anchored on typical hub dwell times, which is why the totals sit at 18.8 h and 24.8 h rather than pure multiples.

Ultra-long-haul arithmetic applies here: the 16.34-hour airborne leg is long enough that splitting it at a hub can beat fatigue even when it loses the clock race. Factor the 15-hour shift into recovery plans: eastbound arrivals at Bangkok generally bite harder than westbound ones.

Flexible-flier trick: price LAS against BKK and then against each nearby field below — secondary endpoints within 700 km sometimes clear the fare by a full cabin class. From LAS, reaching CNX instead takes about 1.4 h — less airborne time than the 16.34 h non-stop, and the surface leg into Bangkok still has to be won back.

Companion flight-time pages exist for 2 of these alternatives (CNX first among them) — see Related calculators. Ground transfer from the alternative airport back into Bangkok is the catch for arrivals off the LAS service: the 582 km back-offset is time you must win back in fare savings.

Leave Las Vegas at 10:00 and the local arrival clock in Bangkok reads about 17:20, which tells you whether day one is recoverable. Hotel, meal and transit averages put a Bangkok day at $75 against $210 in Las Vegas — worth weighing against any fare premium for better flight times.

Bangkok undercuts Las Vegas by $135 a day on the dataset averages; let that shape how many nights you book at each end. With 15 hours gained eastbound, the 13,321 km out to Bangkok ends in a serious jet-lag bill — plan a quiet first day.