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GRZ to IAH: distance & flight time
Graz (Graz Airport) → Houston (George Bush Intercontinental Houston Airport)
5,599 mi
9,011 km · 4,865 nm
11h 27m
estimated nonstop flight time
-7h
time difference · heading northwest
See live GRZ→IAH fares Phone-only fares on this route — call free
Flight time details
5,599 miles nonstop takes roughly 11h 27m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time set-back when reading arrival times on your ticket.
The two airports
- GRZ — Graz Airport · Graz, Austria
- 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 GRZ
- MBX · Maribor Airport37 mi away
- KLU · Klagenfurt Airport57 mi away
- LJU · Ljubljana Jože Pučnik Airport71 mi away
- SOB · Sármellék International Airport84 mi away
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 GRZ from IAH?
The flight distance from Graz (GRZ) to Houston (IAH) is 5,599 miles (9,011 km, 4,865 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GRZ to IAH?
A nonstop flight takes about 11h 27m 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 Graz and Houston?
Houston is 7 hours behind Graz.
What is the cheapest way to fly from GRZ to IAH?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GRZ–IAH that never appear on search engines, with no booking fees.