At some point you kind of need to assume the pilots aren’t suicidal nor are they complete idiots, and it would be ridiculous for them to simply circle around aimlessly until they run out of fuel. Being motivated for survival, they are going to fly to the nearest appropriate airport well in advance of an actual emergency situation.

Further consider that other than this story—where the aircraft ran out of fuel due to a wildly unlucky confluence of technical and human failures—you have never heard of a passenger jet running out of fuel midair. Through decades of storms, hurricanes, tornadoes, and every other natural disaster imaginable, we have found a way to get planes onto the ground with fuel to spare.