I suggest having "All Assists" enabled in the assistance settings under "Options." However, make sure you turn off "Delegate ATC to AI" under the Piloting tab. Next go to the world map and find any airport, preferably a starred airport to guarantee that the airport has a tower. Do not depart from the airport but instead right next to the airport.
Doing this correctly will allow you to spawn in the world already flying so all you need to do is fly towards the airport that is close by. Open up the ATC panel, if it is not already open, from the drop down menu on the top of your screen. (It should be a tower icon on the left of the menu.) In the ATC menu select "2: Nearest Airport List" followed by whatever airport you are closest to. Then hit "Request Full Stop Landing". Wait for a response from the tower then hit "Acknowledge." Proceed to ask for directions for landing, wait for a response to confirm landing. The achievement should unlock before you even land, however landing with your engine turned off should earn you the Deadstick Landing achievement as well.