Cheap flights from Ulaanbaatar to Busan from $515 UBN → PUS
Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS)
The cheapest return found recently is $515 with Jeju Air, 24 Nov – 10 Dec, found yesterday.
- Cheapest return found recently
- $515, 24 Nov to 10 Dec
- Usual return price
- $515 to $593
- Cheapest month to fly
- November 2026, return fares from $497 found in the last 7 days
Return
The cheapest return fare on each of 5 departure dates is usually $515 to $593.
Cheapest return found recently
$515
24 Nov – 10 Dec · Jeju Air
Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS)
Leaves 3:15 p.m. · Return leaves 7:10 a.m. · 37 h 35 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$515 24 Nov – 10 Decfound yesterdaySee prices for these dates
$497 27 Nov – 4 Decfound 3 days agoSee prices for these dates
What have prices looked like?
Over 50 days, 24 Sept to 12 Nov, the cheapest return we saw each day was $299 to $563.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 24 Nov to 24 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 16-night return fares leaving within 3 days of 24 Nov to compare.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 24 Nov – 10 Dec | $515 | Jeju Air | Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 27 Nov – 4 Dec | $497 | Korean Air | Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 21 Dec – 11 Jan 2027 | $552 | Aero Mongolia | Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 23 Dec – 17 Jan 2027 | $750 | MIAT Mongolian Airlines | Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 24 Dec – 13 Jan 2027 | $593 | Jeju Air | Chinggis Khaan International Airport (UBN) → Gimhae International Airport (PUS) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $497.
Airlines on the cheapest dates: Jeju Air, Korean Air, Aero Mongolia, MIAT Mongolian Airlines.
Premium cabin fares from Ulaanbaatar to Busan
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 24 Nov – 10 Dec in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Ulaanbaatar to Busan?
Return
Fares 30 to 59 days before departure were typically 21% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 12 Nov (50 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $613 | $299 | +26% | 28 |
| 7–13 days | $639 | $313 | +32% | 27 |
| 14–29 days | $497 | $448 | +2% | 37 |
| 30–59 days | $486 | $410 | Cheapest seen | 35 |
| 60–89 days | $580 | $481 | +19% | 26 |
| 90–179 days | $585 | $568 | +20% | 29 |
| 180+ days | $570 | $560 | +17% | 42 |
Live price for these dates
The cheapest return found recently is for 24 Nov – 10 Dec. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Ulaanbaatar to Busan?
The cheapest return found recently is $515 with Jeju Air, 24 Nov to 10 Dec, found yesterday. The cheapest return we hold, of any age, is $497 with Korean Air, 27 Nov to 4 Dec, found 3 days ago. The cheapest return fare on each of 5 departure dates is usually $515 to $593.
What is the cheapest month to fly from Ulaanbaatar to Busan?
November 2026 is the cheapest month for a return, from $497, 27 Nov to 4 Dec, found 3 days ago.
How far ahead should I book a flight from Ulaanbaatar to Busan?
In 50 days of prices between 24 Sept and 12 Nov, return fares 30 to 59 days before departure were typically 21% lower than 0 to 6 days before departure.
Which airlines have the cheapest flights from Ulaanbaatar to Busan?
Between 24 Nov and 24 Dec, Jeju Air has the cheapest return on 2 of the 5 departure dates we hold, Korean Air on 1 and Aero Mongolia on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work