Cheap flights from Busan to Ulaanbaatar

One-way fares from $201 · PUS → UBN · prices found by travellers in the last 48 hours

Compare all dates Ulaanbaatar → Busan
Cheapest fare
$201

Eastar Jet · Wed, Dec 9

Cheapest month
December

from $201

Direct flights
Not recently

Usually 1+ stop

Quickest trip
4h 25m

2,310 km

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Cheapest month to fly from Busan to Ulaanbaatar

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $244
  2. December 2026 Cheapest $201
  3. January 2027 $291

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Eastar Jet
Depart06:50 Wed, Dec 9PUS → UBN 4h 55m · 1 stop
$201one way, per person
View deal
Jeju Air
Depart07:10 Wed, Dec 2PUS → UBN 4h 50m · 1 stop
$209one way, per person
View deal
Eastar Jet
Depart06:50 Thu, Dec 10PUS → UBN 4h 55m · 1 stop
$212one way, per person
View deal
Air Busan
Depart20:50 Mon, Dec 14PUS → UBN 4h 50m · 1 stop
$226one way, per person
View deal
Air Busan
Depart17:30 Tue, Dec 1PUS → UBN 5h 55m · 2 stops
$258one way, per person
View deal
Air Busan
Depart20:50 Mon, Dec 21PUS → UBN 4h 50m · 1 stop
$260one way, per person
View deal
Eastar Jet
Depart06:50 Tue, Dec 22PUS → UBN 4h 55m · 1 stop
$268one way, per person
View deal
Eastar Jet
Depart06:50 Mon, Dec 28PUS → UBN 4h 25m · 1 stop
$279one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Ulaanbaatar

Where to stay, what to do and getting around, from our travel partners.

Where to stay

Hotels in UlaanbaatarCompare places to stay on Booking.com Find hotels →

Things to do

Things to do in UlaanbaatarTours, attractions and day trips on Klook Explore →

Getting around

Airport transfer in UlaanbaatarPre-book a driver to meet you at arrivals, with Kiwitaxi Book a transfer → Car hire in UlaanbaatarCompare rental cars from major brands on EconomyBookings Compare cars →

Stay connected

eSIM for MongoliaMobile data from the moment you land, by Airalo Get eSIM →

About flights from Busan to Ulaanbaatar

Busan (PUS) and Ulaanbaatar (UBN) are about 2,310 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 4h 25m. Over the next few months, one-way fares start from $201, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Busan to Ulaanbaatar?

The cheapest one-way fare we've seen recently is $201 with Eastar Jet, departing Wednesday, December 9, 2026. Over the coming months, the lowest fare in each month ranges from $201 to $291.

What is the cheapest month to fly from Busan to Ulaanbaatar?

December 2026 currently has the lowest fares, from $201 one way.

Are there direct flights from Busan to Ulaanbaatar?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Busan to Ulaanbaatar?

The quickest journey we've seen takes about 4h 25m. Busan and Ulaanbaatar are around 2,310 km apart.

Which airlines fly from Busan to Ulaanbaatar?

Recent fares on this route were with Eastar Jet, Jeju Air and Air Busan.

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