Not necessarily, but airport VHF / UHF communication may cause RF noise.
Being close to a cell phone, or TV or FM tower is most likely RF noisy.
Best way is to build your station without filter, then test by following methods. If shown noisy, purchase a filter.
(1) Do I Need A Filter?
(2) Spektrum - How-to Speedily Scan RF Noise in band 24MHz ~ 1800MHz