flying field vs landing field

flying field and landing field both are nouns.

Word	Noun	Adjective	Verb	Adverb
flying field	Yes	No	No	No
landing field	Yes	No	No	No

As nouns, flying field and landing field are synonyms defined as:

Other synonyms of flying field include airfield, field.

flying field (noun)	landing field (noun)
a place where planes take off and land	a place where planes take off and land