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ADT to USN: distance & flight time
Ada (Ada Regional Airport) → Ulsan (Ulsan Airport)
6,740 mi
10,847 km · 5,857 nm
13h 41m
estimated nonstop flight time
+15h
time difference · heading northwest
See live ADT→USN fares Phone-only fares on this route — call free
Flight time details
6,740 miles nonstop takes roughly 13h 41m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15-hour time gain when reading arrival times on your ticket.
The two airports
- ADT — Ada Regional Airport · Ada, United States
- USN — Ulsan Airport · Ulsan, South Korea
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 ADT
- ADM · Ardmore Municipal Airport40 mi away
- MLC · Mc Alester Regional Airport51 mi away
- TIK · Tinker Air Force Base58 mi away
- OKC · Will Rogers World Airport66 mi away
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
Frequently asked questions
How far is ADT from USN?
The flight distance from Ada (ADT) to Ulsan (USN) is 6,740 miles (10,847 km, 5,857 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ADT to USN?
A nonstop flight takes about 13h 41m 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 ADT to USN?
Nonstop service on ADT–USN 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 13h 41m nonstop estimate.
What is the time difference between Ada and Ulsan?
Ulsan is 15 hours ahead of Ada.
What is the cheapest way to fly from ADT to USN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ADT–USN that never appear on search engines, with no booking fees.
Why are some ADT to USN fares phone-only?
Consolidator contracts let us sell certain ADT–USN 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.