LGA and HOU are approximately 1,426 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from LGA to HOU.
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.