Many times I flew on Pan Am,ValueJet and AirTran. Those very great airlines with free music, snacks, and great service have long been history. Southwest has bought AirTran a few years back and made me think about, has anyone in the IFC flown on a defunct airline? Please let me know below!
I flew on Mandala Airlines 4 times with their B737s when they were a Full Service Carrier. Sad to see they are gone even though they have been injected by Tigerair Singapore
Similar to @SkyHighGuys, I flew on US Airways in the midst of their merger with American Airlines (just 3 months shy). Not sure if that counts but ¯_(ツ)_/¯.