How do airplanes navigate in the sky?

Question

i've taken airplanes while traveling but i never understood how airplanes get from point A to B in the sky?

Answer 1

every airport has a frequency that acts like a homing beacon...since there are thousands of airports, they all have a different frequencies. the pilot has a book with all known airfields and there frequencies. they dial that in to there instrumentation and it acts like a gps.