Cheap flights from Busan to Ulaanbaatar from $283 PUS → UBN
Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN)
The cheapest return found recently is $662 with Jeju Air, 25 Dec – 28 Dec, found 4 days ago. The cheapest one-way found recently is $283 with Spring Airlines, 7 Jun 2027, found 6 days ago.
- Cheapest one-way found recently
- $283, found 6 days ago
- Cheapest return found recently
- $662, 25 Dec to 28 Dec
Return
Not enough comparable prices yet for a usual return price.
Cheapest return found recently
$662
25 Dec – 28 Dec · Jeju Air
Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN)
Leaves 7:10 a.m. · Return leaves 7:45 a.m. · 33 h of travel, both ways together
out 1 stop, back 1 stop
found 4 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$662 25 Dec – 28 Decfound 4 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $351 to $662.
At $662, the cheapest return found recently is at the high end of that range.
Those were the prices on those days, not today's.
Is this a good return price?
Not enough comparable prices yet: we hold return fares on 1 departure date and need at least 3 to say what is usual.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 25 Dec to compare.
Every date we hold
1 fares on 1 departure dates
See every date as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 25 Dec – 28 Dec | $662 | Jeju Air | Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
Airlines on the cheapest dates: Jeju Air.
One-way
The cheapest one-way fare on each of 3 departure dates is usually $305 to $331.
Cheapest one-way found recently
$283
7 Jun 2027 · Spring Airlines
Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN)
Leaves 10:10 p.m. · 14 h 50 min trip
1 stop
found 6 days ago
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$283 7 Jun 2027found 6 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 38 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $119 to $356.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 6 Jun 2027 to 8 Jun 2027, 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?
No. We hold one-way fares on 2 other departure dates within 3 days of 7 Jun 2027, and none is cheaper.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 6 Jun 2027 | $336 | Air China | Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN) | 1 stop | found 6 days ago | Open this trip |
| 7 Jun 2027 | $283 | Spring Airlines | Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN) | 1 stop | found 6 days ago | Open this trip |
| 8 Jun 2027 | $326 | Korean Air | Gimhae International Airport (PUS) → Chinggis Khaan International Airport (UBN) | 1 stop | found 6 days ago | Open this trip |
Airlines on the cheapest dates: Air China, Spring Airlines, Korean Air.
Premium cabin fares from Busan to Ulaanbaatar
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 25 Dec – 28 Dec in another cabin: Premium economy · Business · First
Today's prices for 7 Jun 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Busan to Ulaanbaatar?
Return
The cheapest fares were 14 to 29 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (49 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 | $526 | $351 | +3% | 20 |
| 7–13 days | $564 | $563 | +11% | 10 |
| 14–29 days | $510 | $468 | Cheapest seen | 22 |
| 30–59 days | $522 | $468 | +2% | 41 |
| 60–89 days | $541 | $533 | +6% | 15 |
One-way
The cheapest fares were 60 to 89 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (38 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 |
|---|---|---|---|---|
| 60–89 days | $283 | $174 | Cheapest seen | 13 |
| 90–179 days | $302 | $277 | +7% | 15 |
| 180+ days | $341 | $283 | +21% | 14 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Daegu → Ulaanbaatar
88 km from Busan
$307
$24 more than flying from Busan
22 Dec · TAE → UBN · 1 stop
found 6 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 25 Dec – 28 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 Busan to Ulaanbaatar?
The cheapest return found recently is $662 with Jeju Air, 25 Dec to 28 Dec, found 4 days ago.
How much is a one-way flight from Busan to Ulaanbaatar?
The cheapest one-way found recently is $283 with Spring Airlines, 7 Jun 2027, found 6 days ago. The cheapest one-way fare on each of 3 departure dates is usually $305 to $331.
How far ahead should I book a flight from Busan to Ulaanbaatar?
In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure. In 38 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 60 to 89 days before departure.
How long is the flight from Busan to Ulaanbaatar?
The cheapest one-way found recently, with Spring Airlines on 7 Jun 2027, takes 14 h 50 min with 1 stop.
Which airlines have the cheapest flights from Busan to Ulaanbaatar?
Between 6 Jun 2027 and 8 Jun 2027, Air China has the cheapest one-way on 1 of the 3 departure dates we hold, Spring Airlines on 1 and Korean Air 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