Blue Label is good but like everything JW, it's priced about double what it's worth. Lots of scotches that run $100-150 for 0.75L in Canada are of higher quality. If you're an airline that is willing to pay for Blue Label, you should probably also have staple single malts like Lagavulin, Oban, Scapa, etc that are much cheaper and will be enjoyed by whisky fans.
Gold Label is what you probably should serve in international J if you're an airline that wants to serve something good that appeals to a wide audience and isn't overly expensive.
Black Label is drinkable neat if you must, but not something you'll savour before swallowing. If it's the best whisky you serve in international J, you need to improve your offering.
Let's not talk about Red Label except in conjunction with Coke.