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IAH to IST: distance & flight time
Houston (George Bush Intercontinental Houston Airport) → Istanbul (Istanbul Airport)
6,358 mi
10,232 km · 5,525 nm
12h 56m
estimated nonstop flight time
+8h
time difference · heading northeast
See live IAH→IST fares Phone-only fares on this route — call free
Flight time details
6,358 miles nonstop takes roughly 12h 56m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- IAH — George Bush Intercontinental Houston Airport · Houston, United States
- IST — Istanbul Airport · Istanbul, Turkey
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 IST
- ISL · Atatürk International Airport21 mi away
- SAW · Sabiha Gökçen International Airport39 mi away
- TEQ · Tekirdağ Çorlu Airport44 mi away
- BTZ · Bursa Airport73 mi away
Frequently asked questions
How far is IAH from IST?
The flight distance from Houston (IAH) to Istanbul (IST) is 6,358 miles (10,232 km, 5,525 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAH to IST?
A nonstop flight takes about 12h 56m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from IAH to IST?
Nonstop service on IAH–IST depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 12h 56m nonstop estimate.
What is the time difference between Houston and Istanbul?
Istanbul is 8 hours ahead of Houston.
What is the cheapest way to fly from IAH to IST?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAH–IST that never appear on search engines, with no booking fees.
Why are some IAH to IST fares phone-only?
Consolidator contracts let us sell certain IAH–IST tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.