By ship
There is no boat transportation in Ondorkhaan. The Kherlen river runs just south of the city, but it is not navigable by boat.
By bus
This is the most economical way to travel between Ondorkhaan and other major cities. Here is the current bus schedule as of 2/9/11:
Ondorkhaan to Ulaanbaatar: 10,000T each way, leaves Ondorkhaan post office at 8am everyday, arrives in UB at 2pm, tickets purchased the day before or the morning of in the post office center window. This bus includes stops at soums along the road, including Baganuur and Mandaltsenker. The bus stop in UB is Bayanzurk Teevrin Tovchoo, which is about 8 kilometers east of Sukhbaatar Square.
Ondorkhaan to Bor-Undur: 8,500T each way, leaves Ondorkhaan post office at 8am, Monday, Thursday, Saturday only, arrives in Bor-Undur at 3pm, tickets purchased the day before or the morning of in the post office center window. This bus includes stops at soums along the way.
Ondorkhaan to Choibolsan: 15,000T each way, ask the ticket window for where and when the bus leaves changes regularly, tickets purchased the day before or the morning of in the post office center window. This bus includes stops at soums along the way.
Ondorkhaan to Baruun-Urt: 15,000T each way, ask the ticket window for where and when the bus leaves changes regularly, tickets purchased the day before or the morning of in the post office center window. This bus includes stops at soums along the way.
It is recommended to purchase tickets early the day before because the seats do fill up. Also, if the bus is full, tickets will be sold for the center aisle, which will require the rider to sit on a plastic stool in the aisle or stand for the duration of the ride.
By plane
There is no functioning airport in Ondorkhaan. It closed ~2008 when the paved road was completed from Ulaanbaatar.
By train
There is no train line in Ondorkhaan or Khentii aimag province.
By car
Taxis and meekers vans travel daily between Ondorkhaan and all major cities UB, Choibolsan, Baruun-Urt. The price is negotiable based upon the number of travelers, the type of vehicle, and the final destination. A taxi from Ondorkhaan to UB small car typically costs 30,000 to 45,000T each way. In Ondorkhaan, the taxi/meeker stand is in front of 4th school near the sports complex.