Columbus→HoustonNonstop Flight TimeCMH–IAH

Columbus (John Glenn Columbus International Airport) to Houston (George Bush Intercontinental Airport).

Direct flights from CMH to IAH have an estimated flight time of about 2h 37m, based on the 986-mile great-circle distance. Our current captured departure sample includes 3/day across 2 captured airlines, with United Airlines appearing most often in that sample. Captured departure times run from 06:30 to 17:01 local time.

Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for CMH to IAH, last seen June 15, 2026. Frequency uses 21 scheduled departures across 7 observed days; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.