Need help booking?
Unpublished phone-only deals available
USN to SIN: distance & flight time
Ulsan (Ulsan Airport) → Singapore (Singapore Changi Airport)
2,871 mi
4,621 km · 2,495 nm
6h 6m
estimated nonstop flight time
-1h
time difference · heading southwest
See live USN→SIN fares Phone-only fares on this route — call free
Flight time details
2,871 miles nonstop takes roughly 6h 6m gate to gate, flying southwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- SIN — Singapore Changi Airport · Singapore, Singapore
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 SIN
- QPG · Paya Lebar Air Base6 mi away
- XSP · Seletar Airport10 mi away
- BTH · Hang Nadim International Airport18 mi away
- TGA · Tengah Air Base20 mi away
Frequently asked questions
How far is USN from SIN?
The flight distance from Ulsan (USN) to Singapore (SIN) is 2,871 miles (4,621 km, 2,495 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to SIN?
A nonstop flight takes about 6h 6m 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 Singapore?
Singapore is 1 hour behind Ulsan.
What is the cheapest way to fly from USN to SIN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–SIN that never appear on search engines, with no booking fees.