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Ulaanbaatar to Seoul flights in November 2026 from $181 UBN → GMP, ICN

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

For departures in November 2026, the cheapest return found recently is $331 with Jeju Air, 29 Nov – 8 Dec, found 2 days ago. The cheapest one-way found recently is $181 with Jeju Air, 19 Nov, found 2 days ago.

Return

In November 2026, the cheapest return fare on each of 15 departure dates is usually $361 to $381. Across all 89 departure dates we hold on this route, it is usually $378 to $416. Of the 11 months with enough return fares to compare, November 2026 is usually the cheapest.

Cheapest return found recently

$331

29 Nov – 8 Dec · Jeju Air

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

out nonstop, back nonstop

found 2 days ago

See prices for these datesCheck today's price

It is also the cheapest return we hold, of any age.

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The cheapest dates in November 2026

DatesFromAirlineStopsFound
29 Nov – 8 Dec$331Jeju Airout nonstop, back nonstopfound 2 days agoSee prices for these dates
22 Nov – 29 Nov$345Jeju Airout nonstop, back nonstopfound 6 days agoSee prices for these dates
24 Nov – 1 Dec$358Jeju Airout nonstop, back nonstopfound 3 days agoSee prices for these dates
17 Nov – 28 Nov$360Asiana Airlinesout nonstop, back nonstopfound 4 days agoSee prices for these dates
19 Nov – 28 Nov$362Asiana Airlinesout nonstop, back nonstopfound 3 days agoSee prices for these dates

Every date we hold

15 departure dates

15 Nov – 19 Nov: $376, found 7 days ago16 Nov – 23 Nov: $389, found 2 days ago17 Nov – 28 Nov: $360, found 4 days ago18 Nov – 22 Nov: $378, found 7 days ago19 Nov – 28 Nov: $362, found 3 days ago20 Nov – 26 Nov: $379, found 6 days ago21 Nov – 26 Nov: $375, found 2 days ago22 Nov – 29 Nov: $345, found 6 days ago23 Nov – 23 Nov: $465, found 2 days ago24 Nov – 1 Dec: $358, found 3 days ago26 Nov – 29 Nov: $375, found 2 days ago27 Nov – 9 Dec: $382, found 3 days ago28 Nov – 5 Dec: $382, found 8 days ago29 Nov – 8 Dec: $331, found 2 days ago30 Nov – 5 Dec: $378, found 5 days agoNov
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
15 Nov – 19 Nov$376Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 7 days agoSee prices for these dates
16 Nov – 23 Nov$389Aero MongoliaChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
17 Nov – 28 Nov$360Asiana AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 4 days agoSee prices for these dates
18 Nov – 22 Nov$378Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 7 days agoSee prices for these dates
19 Nov – 28 Nov$362Asiana AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
20 Nov – 26 Nov$379Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
21 Nov – 26 Nov$375Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
22 Nov – 29 Nov$345Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 6 days agoSee prices for these dates
23 Nov – 23 Nov$465MIAT Mongolian AirlinesChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
24 Nov – 1 Dec$358Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
26 Nov – 29 Nov$375Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
27 Nov – 9 Dec$382Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 3 days agoSee prices for these dates
28 Nov – 5 Dec$382Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 8 days agoSee prices for these dates
29 Nov – 8 Dec$331Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 2 days agoSee prices for these dates
30 Nov – 5 Dec$378Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)out nonstop, back nonstopfound 5 days agoSee prices for these dates

Which month looks cheapest?

December 2026 is the cheapest month — from $308.

November 2026From $33115 departure dates29 Nov – 8 Dec · found 2 days agoSee prices for these dates
December 2026From $308Cheapest seen20 departure dates10 Dec – 13 Dec · found 7 days agoSee prices for these datesEvery date in December 2026
January 2027From $34214 departure dates24 Jan 2027 – 22 Feb 2027 · found 8 days agoSee prices for these datesEvery date in January 2027
February 2027From $3889 departure dates8 Feb 2027 – 15 Feb 2027 · found 5 days agoSee prices for these datesEvery date in February 2027
March 2027From $3778 departure dates21 Mar 2027 – 1 Apr 2027 · found 6 days agoSee prices for these datesEvery date in March 2027
April 2027From $3435 departure dates1 Apr 2027 – 10 Apr 2027 · found 6 days agoSee prices for these dates
May 2027From $3613 departure dates18 May 2027 – 4 Jun 2027 · found 6 days agoSee prices for these dates
June 2027From $3984 departure dates6 Jun 2027 – 14 Jun 2027 · found 4 days agoSee prices for these dates
July 2027From $4213 departure dates24 Jul 2027 – 6 Aug 2027 · found 3 days agoSee prices for these dates
August 2027From $4124 departure dates17 Aug 2027 – 26 Aug 2027 · found 7 days agoSee prices for these dates
September 2027From $4121 departure date1 Sept 2027 – 12 Sept 2027 · found 2 days agoSee prices for these dates
October 2027From $3983 departure dates16 Oct 2027 – 25 Oct 2027 · found 7 days agoSee prices for these dates

One-way

In November 2026, the cheapest one-way fare on each of 6 departure dates is usually $181 to $208. Across all 45 departure dates we hold on this route, it is usually $181 to $231. Of the 7 months with enough one-way fares to compare, 1 is usually cheaper than November 2026.

Cheapest one-way found recently

$181

19 Nov · Jeju Air

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

nonstop

found 2 days ago

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Cheapest we hold, of any age

$167

17 Nov · Jeju Air

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

nonstop

found 3 days ago

Open this tripCheck today's price

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The cheapest dates in November 2026

DatesFromAirlineStopsFound
17 Nov$167Jeju Airnonstopfound 3 days agoOpen this trip
26 Nov$181Jeju Airnonstopfound 6 days agoOpen this trip
19 Nov$181Jeju Airnonstopfound 2 days agoOpen this trip
24 Nov$182Jeju Airnonstopfound 2 days agoOpen this trip
23 Nov$217Korean Airnonstopfound 3 days agoOpen this trip

Every date we hold

6 departure dates

17 Nov: $167, found 3 days ago19 Nov: $181, found 2 days ago23 Nov: $217, found 3 days ago24 Nov: $182, found 2 days ago25 Nov: $242, found 5 days ago26 Nov: $181, found 6 days agoNov
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
17 Nov$167Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 3 days agoOpen this trip
19 Nov$181Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 2 days agoOpen this trip
23 Nov$217Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 3 days agoOpen this trip
24 Nov$182Jeju AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 2 days agoOpen this trip
25 Nov$242Korean AirChinggis Khaan International Airport (UBN) → Incheon International Airport (ICN)nonstopfound 5 days agoOpen this trip
26 Nov$181Jeju AirChinggis 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 $150.

November 2026From $1676 departure dates17 Nov · found 3 days agoOpen this trip
December 2026From $150Cheapest seen7 departure dates3 Dec · found 2 days agoOpen this tripEvery date in December 2026
January 2027From $1558 departure dates19 Jan 2027 · found 6 days agoOpen this tripEvery date in January 2027
February 2027From $1818 departure dates7 Feb 2027 · found 4 days agoOpen this tripEvery date in February 2027
April 2027From $1924 departure dates29 Apr 2027 · found 5 days agoOpen this trip
May 2027From $2074 departure dates2 May 2027 · found 7 days agoOpen this trip
June 2027From $2312 departure dates18 Jun 2027 · found 6 days agoOpen this trip
August 2027From $2483 departure dates6 Aug 2027 · found 4 days agoOpen this trip
September 2027From $2311 departure date16 Sept 2027 · found 7 days agoOpen this trip
October 2027From $2312 departure dates26 Oct 2027 · found 6 days agoOpen 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