Is flying domestic safe?
As safe as it is anywhere else, I suppose, and certainly safer than the highways. Most of the dodgy domestic carriers come and go in short order and at present the only reliable domestic flights are between Phnom Penh and Siem Reap. Until last week Bangkok Airways was the sole carrier (formerly operating in Cambodia under the name of Siem Reap Airways). They use French-made ATRs and Boeing 717s. Newly formed Cambodia Angkor Air is the new national carrier and is in partnership with Vietnam Air. They are flying ATRs as well and first indications are that this, too, should be a reliable air choice. PMT, yes that really is their name, tries to fly between Phnom Penh and Siem Reap and Phnom Penh and Ratanakiri. Sometimes they make it, sometimes… Hopefully Cambodia Angkor Air will last but Cambodia does not have a good record of airline longevity… Mekong Air, Royal Khmer Air, First Cambodia Air, Royal Phnom Penh Airways, Angkor Airways,… Angkor Beer remains a better option.