Ginger Ale
 

Tastes good and doesn't stain (much) if it gets spilled.

Schweppes Bitter Lemon--available on KLM. In KL's AMS Biz lounge, they even have fountain bitter lemon!

Delta has very good cocktails on their flights. The mojito was pretty good the last time I had it.

For some reason, I have come to crave tomato juice while on a flight. I never touch the stuff on the ground, but at 35K up, it's tomato juice with two ice cubes. (Cools it off without getting watered down)

Cathay Delight..
 

For me, the Cathay Delight - the kiwi juice/cocunut milk concoction with the mint leaf on top - just the right thing..^
Can't say the same for the latest reddish/violet thingie - forget what it's called....

Red Bull- on Alaska (don't think it's on other flights).

Though on the Hawaii flights, they have some tasty POG...

A slightly similar topic (not limited to only soft drinks though) was in TravelBuzz last year in case you're interested.

Definitely ginger ale for me!

I don't have a particular favorite (usually just Diet Whatever or an apple juice), but occasionally I'll get a ginger ale. Not weird in itself, but I'm fairly certain the only place I've ever drank ginger ale is on an airplane--just not something I've ever bought or had any desire to drink on the ground.

Just wondering if anyone has experienced soda cocktails onboard?

An African colleague has a good story of the names of all the mocktails made with a splash of Fanta, Coke, Ginger Ale etc.

I'd sooner take a juice than a sugar-water drink, unless it's a mixed one. ;)

POG is always good. HA serves it on their x-Pacs. But my favorite airline-served soft drink was served only for a brief, 2 month period in the spring of this year, when HA served Pomegranate juice in F: they promoted it as their "Signature Beverage" to complement their re-tooled F menu.

Well, it was great by itself, great with champagne; great with Ketel 1; but alas, it probably proved too costly, because it vanished as suddenly as it appeared; and the FA's don't even like to discuss it, as if it never happened, whenever I ask "Whatever happened to that Pomegranate juice you served".

So it goes.

My favourite soft drinks have been those on HA, HNL-SYD when it recommmenced, because the FAs were so happy to make their guests happy.

The coffee-flavoured drinks were excellent. ^

Aloha!