Yes, you can smoke at Mongolia’s main airport. Chinggis Khaan International Airport (UBN) at Ulaanbaatar publishes an indoor smoking room in the ground-floor arrivals hall, a second indoor smoking room in the border-zone waiting hall on the departures floor above, past passport control, and a separate outdoor smoking point outside the building.
For international travel through Mongolia, Ulaanbaatar (UBN) is the airport to use, replacing the older Buyant-Ukhaa airport closer to the city centre, which kept the IATA code ULN and remains semi-operational for limited traffic.
How Mongolian Airport Smoking Works
Mongolia’s Tobacco Control Law bans smoking in passenger stations and on public transport as enumerated public places; a separate provision requires businesses and facilities over a set size to establish at least one designated smoking area on their premises, which is the basis for the rooms and the outdoor point at Ulaanbaatar’s airport:
- An indoor smoking room in the arrivals hall, ground floor, landside
- A second indoor smoking room in the border-zone waiting hall, departures floor, past passport control
- An outdoor smoking point outside the terminal building
- E-cigarettes are not separately regulated under current Mongolian law, and a proposal to bring them under the tobacco law was still under review in late 2025; the airport publishes no separate vaping rule for the smoking rooms — ask staff before using one
Chinggis Khaan International Airport (UBN)
Mongolia’s only major international gateway, opened in July 2021 to replace the older Buyant-Ukhaa airport. Ulaanbaatar’s smoking rooms sit on both terminal floors — one in the arrivals hall and one in the departures-side border-zone waiting hall — plus the outdoor smoking point outside the building. The airport handled over 2 million passengers in 2024 through its single terminal.
Tips for Smokers at Mongolian Airports
- Ulaanbaatar keeps an indoor smoking room past passport control — you can smoke during a layover without exiting the secure zone
- Landside, the arrivals-hall room and the outdoor point outside the building are the options before check-in or after landing
- E-cigarettes are not separately regulated under Mongolian law and the airport publishes no vaping rule or vaping-specific facility; ask staff before using one in a smoking room, or vape at the outdoor point in the open air
- Older booking systems sometimes still show the airport’s former code, ULN — the current international airport is UBN
Mongolia Airports Compared: Indoor, Outdoor & After Security
| Airport | After security | Indoor room | Outdoor area |
|---|---|---|---|
| Chinggis Khaan International Airport (UBN) | Yes | Yes | Yes |
