$6.99 brings out the cheap in all of us. But really you’re getting a gourmet burger, so kindly tip at least 20%. The people who are serving you are working hard during Burger Week so a kind word ...

But there are two catches: the burgers are only served on flights that travel more than 900 miles, and only first-class flyers are able to place Shake Shack orders. 'Customers are raving about the ...

The burgers - which feature an Angus beef patty ... Airlines have been investing in perks as flyers increasingly gravitate toward premium tickets, which are more of a money-maker than the cramped ...