The closest airport is 30 kilometres north of Buriram town and over 100 kilometres north of Phanom Rung, serviced by a once-daily flight with Nok Air. Nakhon Ratchasima (Khorat) is around 130 kilometres northwest of Phanom Rung and has more daily flights.
Buriram town is on the Northeastern line, with close to a dozen trains passing through each day on their ways between Ubon Ratchathani and Bangkok. After arriving in Buriram, you can take a songthaew or tuk tuk over to the bus station and then hop in a minibus to Nang Rong.
Nang Rong’s bus station is centrally located, just south of Highway 24 off Si Phu Charoen Road. Fares include:
Bangkok (Morchit): First-class buses with toilets depart at 10:00, 13:00, 15:00 and 22:00, cost around 300 baht and take five to six hours. Second-class buses depart at 09:20, 11:30, 19:20, 20:40, 22:00 and 23:20, and cost around 200 baht.
Buriram: Minibuses run hourly between Buriram and Nang Rong, costing 38 baht and taking around an hour.
Khorat: Minibuses depart every half-hour from 08:00 to 20:00, cost 60 baht and take around two hours. Transfers to Phimai and loads of other destinations in Northeast, Central and Northern Thailand are available in Khorat.
Surin: Khorat to Surin buses stop in Nang Rong at least once every two hours from 06:30 to 19:00, or you can transfer in Buriram. If heading to the Cambodia border crossing at Chong Jom, transfer in Surin.
Ubon Ratchathani: Ubon-bound buses stop in Nang Rong at 09:00, 11:00, 13:00 and 15:00, cost 200 to 300 baht and take six to seven hours.
Chanthaburi: Buses depart roughly every hour up until midnight, cost around 300 baht and take six to seven hours. These stop at Aranyaprathet (Cambodia border crossing). If heading to Phanom Rung and Muang Tam, you can catch one of these and ask to be let off in Baan Ta Pek, where motorbike taxis can take you onwards to the ruins.
Nang Rong is small enough to cover on foot, and motorbike taxis are available. To reach Phanom Rung, Muang Tam and the other ruins, you can rent a motorbike for 250 to 300 baht per day at Honey Inn or P.California Hostel. All hotels can also arrange a car and driver for the day. At Honey Inn, Mr Kris charges 1,100 baht for a trip to both temples, with the price going up if you also want to hit Wat Khao Angkhan, Ta Muan or other sites.