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IAH to SUS: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Null (Spirit of St Louis Airport)
656 mi
1,056 km · 570 nm
1h 54m
estimated nonstop flight time
Same time
time difference · heading northeast
See live IAH→SUS fares Phone-only fares on this route — call free
Flight time details
656 miles nonstop takes roughly 1h 54m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- SUS — Spirit of St Louis Airport · Null, 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 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
Near SUS
- STL · St Louis Lambert International Airport16 mi away
- ALN · St Louis Regional Airport36 mi away
- BLV · Scott AFB/Midamerica Airport45 mi away
- JEF · Jefferson City Memorial Airport81 mi away
Frequently asked questions
How far is IAH from SUS?
The flight distance from Houston (IAH) to Null (SUS) is 656 miles (1,056 km, 570 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to SUS?
A nonstop flight takes about 1h 54m 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 cheapest way to fly from IAH to SUS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–SUS that never appear on search engines, with no booking fees.