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USN to BIR: distance & flight time
Ulsan (Ulsan Airport) → Biratnagar (Biratnagar Airport)
2,550 mi
4,103 km · 2,216 nm
5h 28m
estimated nonstop flight time
-3.2h
time difference · heading west
See live USN→BIR fares Phone-only fares on this route — call free
Flight time details
2,550 miles nonstop takes roughly 5h 28m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 3.2-hour time set-back when reading arrival times on your ticket.
The two airports
- USN — Ulsan Airport · Ulsan, South Korea
- BIR — Biratnagar Airport · Biratnagar, Nepal
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 BIR
- RJB · Rajbiraj Airport33 mi away
- BHP · Bhojpur Airport48 mi away
- BDP · Bhadrapur Airport51 mi away
- TMI · Tumling Tar Airport58 mi away
Frequently asked questions
How far is USN from BIR?
The flight distance from Ulsan (USN) to Biratnagar (BIR) is 2,550 miles (4,103 km, 2,216 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from USN to BIR?
A nonstop flight takes about 5h 28m 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 Biratnagar?
Biratnagar is 3.2 hours behind Ulsan.
What is the cheapest way to fly from USN to BIR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on USN–BIR that never appear on search engines, with no booking fees.