India, June 8 -- United Airlines Holdings, Inc. (UAL) CEO Scott Kirby believes we won't see any major mergers among U.S. airlines anytime soon. He made this clear after American Airlines turned down the idea of a potential merger earlier this year, stating that he isn't keen on pursuing a merger just for the sake of growth.

At the annual meeting of the International Air Transport Association in Rio de Janeiro, Kirby pointed out that options for mergers between major U.S. carriers are pretty much limited.

Sure, there have been some recent deals, like the ones between Alaska Airlines and Hawaiian Airlines, as well as a few smaller firms, but Kirby thinks there aren't any big merger opportunities left that would be appealing.

Having been in...