Need help booking?
Unpublished phone-only deals available
USN to HRI: distance & flight time
Ulsan (Ulsan Airport) → Mattala (Mattala Rajapaksa International Airport)
3,660 mi
5,891 km · 3,181 nm
7h 39m
estimated nonstop flight time
-3.5h
time difference · heading west
See live USN→HRI fares Phone-only fares on this route — call free
Flight time details
3,660 miles nonstop takes roughly 7h 39m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.5-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- HRI — Mattala Rajapaksa International Airport · Mattala, Sri Lanka
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 HRI
- WRZ · Weerawila Airport8 mi away
- KCT · Koggala Airport59 mi away
- ADP · Ampara Airport81 mi away
- RML · Colombo Ratmalana Airport93 mi away
Frequently asked questions
How far is USN from HRI?
The flight distance from Ulsan (USN) to Mattala (HRI) is 3,660 miles (5,891 km, 3,181 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to HRI?
A nonstop flight takes about 7h 39m 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 Mattala?
Mattala is 3.5 hours behind Ulsan.
What is the cheapest way to fly from USN to HRI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–HRI that never appear on search engines, with no booking fees.