Originally Posted by 3Cforme

That calls for a correction. DL has put AVOD at every seat in all mainline aircraft except MD-88s (still 81 of them, all gone by end of 2020), the presently 38-strong MD-90s (declining rapidly in number but final retirement TBD), and the 91 717s. So, if it has engines on the wings - call it 650 mainline aircraft - you'll find AVOD. Sat wifi (Ku or 2Ku), too.