By plane
By plane
Aero Mongolia (http://www.aeromongolia.mn/) operates several flights a week from Ulaanbaatar.
By bus
By bus
Buses for Tsetserleg leave from the Dragon bus station in Ulaanbaatar at 8AM on Mon, Wed, and Fri, and Sat. The ride typically lasts at least 10 hours, and tickets must be purchased a day in advance. As of June 2009, bus tickets from Ulaanbaatar to Tsetserleg cost approximately 18,000 tugrug, around US$13.
There are also microbuses that run between Ulaanbaatar and Tsetserleg. These are often very cramped four across a bench seat, as drivers want to fit as many people in as possible to maximize profit. If possible, it is not a bad idea to pay for an extra seat to be left empty.