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USN to AAP: distance & flight time
Ulsan (Ulsan Airport) → Houston (Andrau Airpark)
7,061 mi
11,364 km · 6,136 nm
14h 19m
estimated nonstop flight time
-14h
time difference · heading northeast
See live USN→AAP fares Phone-only fares on this route — call free
Flight time details
7,061 miles nonstop takes roughly 14h 19m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 14-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- AAP — Andrau Airpark · 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 USN
- KPO · Pohang Airport (G-815/K-3)28 mi away
- PUS · Gimhae International Airport37 mi away
- TAE · Daegu Airport44 mi away
- CHF · Jinhae Airbase/Airport (G-813/K-10)48 mi away
Near AAP
- IAH · George Bush Intercontinental Houston Airport23 mi away
- SGR · Sugar Land Regional Airport8 mi away
- IWS · West Houston Airport8 mi away
- HOU · William P Hobby Airport19 mi away
Frequently asked questions
How far is USN from AAP?
The flight distance from Ulsan (USN) to Houston (AAP) is 7,061 miles (11,364 km, 6,136 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to AAP?
A nonstop flight takes about 14h 19m 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 Ulsan and Houston?
Houston is 14 hours behind Ulsan.
What is the cheapest way to fly from USN to AAP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–AAP that never appear on search engines, with no booking fees.