I am currently on felony probation. I have 3 more years left. My wife lives in S E Asia and I would like to fly there and remain. I have no interest in coming back to the U.S. as I am seeking citizenship in her country. I am aware of the risk of violation of probation if I come back. I just want to know if I am going to be stopped at the airport from leaving?

You very well might be stopped. They do check inbound as well as outbound.

While you may well get out, getting a visa to enter their nation. Also doubtful you will be allowed to stay, since you will have a warrant for your arrest for running away from probation.

Also it is even possible that they will ask for you to be brought back from that nation.