We managed to steal a plane and flew it to Finland

"We tried to get out by air but that proved impossible. All civil flights were canceled so that the fields could accommodate the armadas of military aircraft that swarmed into the area. We couldn't even get a wireless message out because of the spreading chaos. We had to proceed out of the city on foot and by then affairs were beginning to take an ugly turn. Food supplies were becoming exhausted and as long as the military refused to budge nothing could be brought in, even their own supplies. Once out of the city we took to the river. No one attempted to stop us but neither did any official attempt to help their Chinese comrades. The curious paralysis had spread. It was as if the entire countryside was holding its breath, waiting for some positive sign of authority. In Gorki, where there was less air-congestion, we managed to steal a plane and flew it to Finland. The rest you know."

Richard Sabia: I Was a Teen-Age Secret Weapon