Juank Air is an airline based in the state of San Andreas circa 1992. Juank Air provides air travel between the cities of Los Santos, San Fierro and Las Venturas, via the Los Santos International Airport, the Easter Bay Airport and the Las Venturas Airport, respectively. The airline probably operates out of San Andreas as when Carl Johnson travels from Liberty City back to San Andreas, he obviously takes a Juank Air flight, as seen in the intro video.
The company continues to operate in 1998, as a sign for the company can be seen in Saint Mark's, Portland, Liberty City. Juank Air's fleet includes the AT-400 and the Nevada. The name of the airline is a play on the word "wanker" (slang for someone who masturbates) and is emphasized further by featuring a fist in one of its logos. The name of the airline could also be a play on the word "junk", which is a slang term for genitals. The name can also imply that the the airline the passengers are getting is junk, or shit.