Cheapest return flights from Bangkok to Ulaanbaatar in April from $631

AirHint found the following cheapest return flights from Bangkok (BKK) to Ulaanbaatar (UBN) in April 2026 (see full year).

Return flights

23 Apr - 29 Apr Thai AirAsia X
06 Apr - 09 Apr Air China
04 Apr - 09 Apr Air China
03 Apr - 07 Apr Air China
24 Apr - 29 Apr Air China
29 Apr - 08 May Air China
08 Apr - 13 Apr Air China
10 Apr - 14 Apr Air China
11 Apr - 18 Apr Air China
10 Apr - 20 Apr Korean Air

Also check the deals for one-way flights from Bangkok to Ulaanbaatar in April.

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