AirHint found the following cheapest return flights from Singapore (SIN) to Ulaanbaatar (UBN) in March 2026 (see full year).
Return flights
| 28 Mar - 05 Apr | Thai AirAsia | ||
| 25 Mar - 30 Mar | Air China | ||
| 22 Mar - 30 Mar | Condor |
Also check the deals for one-way flights from Singapore to Ulaanbaatar in March.
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