Question: how far phnom penh to siem reap?
Answer: It's 146 miles (235 kilometers) from Siem Reap to Phnom Penh if you travel by plane, but by road it's between 198 and 250 miles (319 and 403 kilometers) depending on which National Road you take. This can take 40-60 minutes by plane or between 5 and 8 hours by car or bus.