Need help booking?
Unpublished phone-only deals available
CMH to IAH: distance & flight time
Columbus (John Glenn Columbus International Airport) → Houston (George Bush Intercontinental Houston Airport)
986 mi
1,586 km · 857 nm
2h 37m
estimated nonstop flight time
-1h
time difference · heading southwest
See live CMH→IAH fares Phone-only fares on this route — call free
Flight time details
986 miles nonstop takes roughly 2h 37m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- CMH — John Glenn Columbus International Airport · Columbus, United States
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CMH
Near IAH
- DWH · David Wayne Hooks Memorial Airport14 mi away
- IWS · West Houston Airport23 mi away
- AAP · Andrau Airpark23 mi away
- HOU · William P Hobby Airport24 mi away
Frequently asked questions
How far is CMH from IAH?
The flight distance from Columbus (CMH) to Houston (IAH) is 986 miles (1,586 km, 857 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CMH to IAH?
A nonstop flight takes about 2h 37m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Columbus and Houston?
Houston is 1 hour behind Columbus.
What is the cheapest way to fly from CMH to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CMH–IAH that never appear on search engines, with no booking fees.