That wouldn't fly a drone off to the actual airport. It may do several things.
A drone with FCC style restrictions built in my immediately land itself instead of continuing into the protected zone as flying within range of an airport is banned.
It might try to correct its course and head further away from the actual Kremlin trying to find it. Like the robot from the Asimov book that was running in circles trapped between 2 zones.
It's extremely unlikely it could head to the airport from this, and most likely it would head in the opposite direction of the actual airport. If the airport was 20 miles East of the Krelmin, drone wants to blow up the Kremlin so it goes 20 miles West to find it. End result, drone is now 40 miles West of airport and 20 miles from Kremlin.
I think it would more likely get stuck along the radius but each drone could behave differently.