Cheapest return flights from Seoul (ICN) to Ulaanbaatar (UBN)

Cheapest month: April 2027, from $ 392. Book in one tap, or open a month for every date.

All destinations from Seoul (ICN)

One-wayReturn

  • October 2026

    19 Oct – 10 Apr 2027 173 nights
    $ 538 return
    Direct Asiana Airlines
    Price seen 15 Oct
    October dates

  • January 2027

    1 Jan – 14 Mar 2027 72 nights
    $ 438 return
    Direct MIAT Mongolian Airlines
    Price seen 15 Oct
    January dates

  • February 2027

    6–9 Feb 2027 3 nights
    $ 413 return
    Direct MIAT Mongolian Airlines
    Price seen 14 Oct
    February dates

  • April 2027

    28 Apr – 4 May 2027 6 nights
    $ 392 return Cheapest month
    Direct Asiana Airlines
    Price seen 14 Oct
    April dates

  • June 2027

    14 Jun – 18 Aug 2027 65 nights
    $ 548 return
    Direct Korean Air
    Price seen 15 Oct
    June dates

  • July 2027

    12 Jul – 9 Oct 2027 89 nights
    $ 643 return
    Direct Korean Air
    Price seen 15 Oct
    July dates

  • August 2027

    27 Aug – 10 Oct 2027 44 nights
    $ 548 return
    Direct Korean Air
    Price seen 15 Oct
    August dates

  • September 2027

    30 Sep – 3 Oct 2027 3 nights
    $ 445 return
    Direct Korean Air
    Price seen 15 Oct
    September dates
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Updated Oct 16, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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