Ok, so in the Berlin Airlift scenario, more often than not you'd be seeing American and British fighters escorting Soviet intruders out of the air corridor as opposed to the other way around on account of having a more legitimate claim to (forgive the expression) "right of way"?
Yeah, pretty much, though that's only if the Soviets got too aggressive and actually started actively hampering the airlift. Soviet fighters were allowed to penetrate the air corridor numerous times and harass cargo planes, because nobody wanted a war.