Panama's Copa Airlines, United Arab Emirates' Etihad Airways and TAP Portugal.

WSJ: El Al, Virgin Atlantic Are Airlines That Auction Upgrades to Business Class

There was some rumor that United Arab Emirates powerhouse Etihad Airways was going to acquire a stake in the company, but that rumor was quickly dispelled as baseless.

FORBES: Forced Bankruptcy A Possibility For Mallya's Kingfisher Airlines

Etihad Airways of the United Arab Emirates in April agreed to purchase a 24% stake in India-based Jet Airways (India) Ltd.

WSJ: India Moving to Reduce Airport Fees