▁Atlanta . ▁ ▁From ▁the ▁ 1 9 8 0 s ▁until ▁Eastern ' s ▁dem ise ▁in ▁ 1 9 9 1 , ▁D elta ▁occupied ▁Con course A ▁and ▁part ▁of ▁Con course B , ▁Eastern ▁occupied ▁the ▁remainder ▁of ▁Con course B ▁and ▁Con course C , ▁other ▁domestic ▁air lines ▁used ▁Con course D , ▁and ▁Con course T ▁was ▁used ▁by ▁international ▁fl ights . ▁By ▁the ▁mid - 1 9 9 0 s , ▁D elta ' s ▁hub ▁grew ▁to ▁occup y ▁all ▁of ▁Con course B ▁and ▁the ▁southern ▁half ▁of ▁Con course T , ▁and ▁international ▁fl ights ▁moved ▁to ▁the ▁new ▁Con course E . ▁ ▁Val u J et ▁was ▁established ▁in ▁ 1 9 9 3 ▁as ▁low - cost ▁competition ▁for ▁D elta ▁at ▁A TL . ▁However , ▁its ▁safety ▁practices ▁were ▁called ▁into ▁question ▁early ▁and ▁the ▁air line ▁was ▁ground ed ▁after ▁the ▁ 1 9 9 6 ▁crash ▁of ▁Val u J et ▁Fl ight ▁ 5 9 2 . ▁It ▁res umed ▁operations ▁in ▁ 1 9 9 7 ▁as ▁Air T ran ▁Air ways ▁and ▁was ▁the ▁second - larg est ▁air line ▁at ▁A TL ▁until ▁it ▁was ▁acquired ▁by ▁South west ▁in ▁ 2 0 1 1 ▁and ▁absor bed ▁into ▁South west ▁on ▁December ▁ 2 8 , ▁ 2 0 1 4 . ▁South west ▁is ▁now ▁the ▁air port ' s ▁second ▁largest ▁car rier . ▁ ▁Fac ilities