Skip to content
FareTell

Ulaanbaatar to Seoul in July 2027 UBN → GMP, ICN

Chinggis Khaan International Airport (UBN) → Gimpo International Airport (GMP), Incheon International Airport (ICN)

For departures in July 2027, the cheapest return found recently is $419 with Aero Mongolia, 23 Jul 2027 – 4 Aug 2027, found today. The cheapest one-way found recently is $231 with MIAT Mongolian Airlines, 22 Jul 2027, found today.

Return

In July 2027, the cheapest return fare on each of 5 departure dates is usually $419 to $419. Across all 116 departure dates we hold on this route, it is usually $398 to $421. Of the 10 months with enough return fares to compare, 7 are usually cheaper than July 2027.

Cheapest return found recently

$419

23 Jul 2027 – 4 Aug 2027 · Aero Mongolia

Chinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)

out nonstop, back nonstop

found today

See prices for these datesCheck today's price

Cheapest we hold, of any age

$409

14 Jul 2027 – 26 Jul 2027 · MIAT Mongolian Airlines

Chinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)

out nonstop, back nonstop

found 5 days ago

See prices for these datesCheck today's price

FareTell may earn a commission when you book through a partner.

The cheapest dates in July 2027

DatesFromAirlineStopsFound
14 Jul 2027 – 26 Jul 2027$409MIAT Mongolian Airlinesout nonstop, back nonstopfound 5 days agoSee prices for these dates
23 Jul 2027 – 4 Aug 2027$419Aero Mongoliaout nonstop, back nonstopfound todaySee prices for these dates
24 Jul 2027 – 7 Aug 2027$419Aero Mongoliaout nonstop, back nonstopfound todaySee prices for these dates
25 Jul 2027 – 4 Aug 2027$419Aero Mongoliaout nonstop, back nonstopfound todaySee prices for these dates
22 Jul 2027 – 3 Aug 2027$430Asiana Airlinesout nonstop, back nonstopfound todaySee prices for these dates

Every date we hold

5 departure dates

14 Jul 2027 – 26 Jul 2027: $409, found 5 days ago22 Jul 2027 – 3 Aug 2027: $430, found today23 Jul 2027 – 4 Aug 2027: $419, found today24 Jul 2027 – 7 Aug 2027: $419, found today25 Jul 2027 – 4 Aug 2027: $419, found todayJul
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
14 Jul 2027 – 26 Jul 2027$409MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 5 days agoSee prices for these dates
22 Jul 2027 – 3 Aug 2027$430Asiana AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound todaySee prices for these dates
23 Jul 2027 – 4 Aug 2027$419Aero MongoliaChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound todaySee prices for these dates
24 Jul 2027 – 7 Aug 2027$419Aero MongoliaChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound todaySee prices for these dates
25 Jul 2027 – 4 Aug 2027$419Aero MongoliaChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound todaySee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $282.

October 2026From $39611 departure dates23 Oct – 8 Dec · found todaySee prices for these datesEvery date in October 2026
November 2026From $29120 departure dates26 Nov – 29 Nov · found 5 days agoSee prices for these datesEvery date in November 2026
December 2026From $282Cheapest seen23 departure dates8 Dec – 15 Dec · found 6 hours agoSee prices for these datesEvery date in December 2026
January 2027From $39013 departure dates20 Jan 2027 – 30 Jan 2027 · found 3 days agoSee prices for these datesEvery date in January 2027
February 2027From $4017 departure dates1 Feb 2027 – 3 Mar 2027 · found 3 days agoSee prices for these datesEvery date in February 2027
March 2027From $39712 departure dates8 Mar 2027 – 23 Mar 2027 · found todaySee prices for these datesEvery date in March 2027
April 2027From $4039 departure dates24 Apr 2027 – 3 May 2027 · found 5 days agoSee prices for these datesEvery date in April 2027
May 2027From $4109 departure dates27 May 2027 – 27 Jun 2027 · found 4 days agoSee prices for these datesEvery date in May 2027
June 2027From $4034 departure dates1 Jun 2027 – 2 Jul 2027 · found 5 days agoSee prices for these dates
July 2027From $4095 departure dates14 Jul 2027 – 26 Jul 2027 · found 5 days agoSee prices for these dates
August 2027From $4111 departure date27 Aug 2027 – 1 Sept 2027 · found 5 days agoSee prices for these dates
September 2027From $4012 departure dates16 Sept 2027 – 30 Sept 2027 · found 5 days agoSee prices for these dates

One-way

In July 2027, the cheapest one-way fare on each of 7 departure dates is usually $236 to $241. Across all 51 departure dates we hold on this route, it is usually $197 to $235. Of the 7 months with enough one-way fares to compare, 5 are usually cheaper than July 2027.

Cheapest one-way found recently

$231

22 Jul 2027 · MIAT Mongolian Airlines

Chinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)

nonstop

found today

Open this tripCheck today's price

It is also the cheapest one-way we hold, of any age.

FareTell may earn a commission when you book through a partner.

The cheapest dates in July 2027

DatesFromAirlineStopsFound
22 Jul 2027$231MIAT Mongolian Airlinesnonstopfound todayOpen this trip
24 Jul 2027$231MIAT Mongolian Airlinesnonstopfound todayOpen this trip
21 Jul 2027$240MIAT Mongolian Airlinesnonstopfound 6 days agoOpen this trip
27 Jul 2027$240MIAT Mongolian Airlinesnonstopfound 6 days agoOpen this trip
23 Jul 2027$241MIAT Mongolian Airlinesnonstopfound 6 days agoOpen this trip

Every date we hold

7 departure dates

21 Jul 2027: $240, found 6 days ago22 Jul 2027: $231, found today23 Jul 2027: $241, found 6 days ago24 Jul 2027: $231, found today25 Jul 2027: $241, found 6 days ago26 Jul 2027: $241, found 6 days ago27 Jul 2027: $240, found 6 days agoJul
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
21 Jul 2027$240MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
22 Jul 2027$231MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound todayOpen this trip
23 Jul 2027$241MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
24 Jul 2027$231MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound todayOpen this trip
25 Jul 2027$241MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
26 Jul 2027$241MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip
27 Jul 2027$240MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 6 days agoOpen this trip

Which month looks cheapest?

December 2026 is the cheapest month — from $133.

October 2026From $2061 departure date27 Oct · found 6 days agoOpen this tripEvery date in October 2026
November 2026From $14313 departure dates26 Nov · found yesterdayOpen this tripEvery date in November 2026
December 2026From $133Cheapest seen12 departure dates8 Dec · found 2 hours agoOpen this tripEvery date in December 2026
January 2027From $2293 departure dates16 Jan 2027 · found 5 days agoOpen this tripEvery date in January 2027
February 2027From $2273 departure dates27 Feb 2027 · found yesterdayOpen this tripEvery date in February 2027
March 2027From $1877 departure dates9 Mar 2027 · found 6 days agoOpen this tripEvery date in March 2027
April 2027From $2304 departure dates3 Apr 2027 · found todayOpen this tripEvery date in April 2027
June 2027From $2401 departure date21 Jun 2027 · found 2 days agoOpen this trip
July 2027From $2317 departure dates22 Jul 2027 · found todayOpen this trip

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