some facts got mixed up hre.
1.BKk air OWNED SR-air, planes were interchanged. SR-air was never blacklisted, but after some years the Khmer wanted to start up-again- their ''own'' airline and had to get competition ruthlessly move away. Which is as things usually go in Khmerland.
2.Bkk-air does NOT own SR airpt. But they hav handsomely paid off the Khmer in charge-rumour has it even a few dozen US$ per pAX! and thus got that monopoly and this explaines the high fares.
3. ''all those'' Qs about getting to SR-these have also been answered the same nr of times in about any conceivable travel-forum and thye are just for th looking at travelfish.org. in short: do not bother with train, unless you are a diehard of the iron rooster.
3b. since 1/7 direct THROUGH buses are now allowd to cross border TH-KH, and several buslines have started to run such from BKK to PnPN-not via SR.
and my opinion:
4.any previous attempt to open direct air from PTY-that dreadful mafia controlled UTP, have ended after a few weeks due to hardly any pax. As has been the fate of about all of Khmerlands 5+ new-start-up airlines in the last 15 years.