As business class products become ever more luxurious, is it still worth the upgrade to first class?

JetBlue, which currently offers its highest-end Mint service with lie-flat seats on select long-haul routes, plans to introduce a domestic first class–style product on aircraft that do not have Mint ...

Add Yahoo as a preferred source to see more of our stories on Google. JetBlue, which currently offers its highest-end Mint service with lie-flat seats on select long-haul routes, plans to introduce a ...