The airport is 7km west of central Phnom Penh, via Russian Confederation Blvd. Facilities include free wi-fi, a host of internationally recognisable cafes and restaurants and some decent handicraft outlets for last-minute purchases.
An official booth outside the airport arrivals area arranges taxis to the centre for US$12; a remork-moto (tuk tuk) costs a flat US$9. You can get a remork for US$5 and a moto (motorcycle taxi) for about US$3 if you walk one minute out to the street. Heading to the airport from central Phnom Penh, a taxi/remork/moto will cost about US$10/6/3. The journey usually takes between 30 minutes and one hour depending on the traffic.