My new landlady has had this guitar for maybe 50 years and I offered to find out about it.
Go on reddit, specifically r/guitars (NOT r/guitar, the person running that sub is a major shithead, trust me), and post a LOT of pictures, particularly focusing on the headstock, neck joint, and anything that might be printed on the interior, if possible. Depending on the model and condition, it could be worth up to a couple thousand dollars.
Generically, I can tell you Airline guitars were made in Chicago by the VALCO company from 1958-68 and sold primarily via Montgomery Ward. The company is currently owned by Eastwood Guitars.