AirHint found the following cheapest return flights from Phuket (HKT) to Ulaanbaatar (UBN) in October 2025 (see full year).

Return flights

17 Oct - 24 Oct	Thai VietJet Air
15 Oct - 22 Oct	Thai VietJet Air
13 Oct - 20 Oct	HK Express
16 Oct - 23 Oct	Thai VietJet Air
20 Oct - 27 Oct	HK Express
24 Oct - 31 Oct	HK Express
18 Oct - 25 Oct	HK Express
12 Oct - 19 Oct	Thai Airways
29 Oct - 05 Nov	Thai VietJet Air
19 Oct - 26 Oct	Thai VietJet Air
26 Oct - 02 Nov	AirAsia
22 Oct - 29 Oct	Thai VietJet Air
30 Oct - 06 Nov	Thai AirAsia
25 Oct - 01 Nov	Thai Airways
31 Oct - 07 Nov	AirAsia
27 Oct - 03 Nov	Bangkok Airways
28 Oct - 04 Nov	Thai VietJet Air

Also check the deals for one-way flights from Phuket to Ulaanbaatar in October.

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 Phuket to Ulaanbaatar in October from $450

Return flights