HOU and LAS are approximately 1,233 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from HOU to LAS.
Airlines represented in the current schedule are Southwest Airlines (WN).
Aircraft listed in the current schedule include Boeing 737-800 Winglets (73H), Boeing 737 MAX 8 (7M8), 7S7 and JET.