AirHint found the following cheapest return flights from Ulaanbaatar (UBN) to Tokyo (NRT) in September 2025 (see full year).

Return flights

15 Sep - 22 Sep	Aero K Airlines
12 Sep - 18 Sep	Jin Air
12 Sep - 14 Sep	Jin Air
12 Sep - 28 Sep	Jin Air
12 Sep - 25 Sep	Jin Air
08 Sep - 18 Sep	Jin Air
08 Sep - 11 Sep	Jin Air
08 Sep - 14 Sep	Jin Air
08 Sep - 28 Sep	Jin Air
08 Sep - 25 Sep	Jin Air
29 Sep - 19 Oct	Jin Air
29 Sep - 16 Oct	Jin Air
26 Sep - 12 Oct	United	direct
26 Sep - 13 Oct	MIAT Mongolian Airlines	direct

Also check the deals for one-way flights from Ulaanbaatar to Tokyo in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Ulaanbaatar to Tokyo in September from $356

Return flights