Kids Meal for 15 Year Old?
 

Child meals have slightly smaller portions but are served on the same tray. CX also has a snack box so if you are still hungry there is that option, plus noodles.

You are aware that CX has about 20 other meal choices? Including a baby meal. Are you travelling as an Unaccompanied Minor?

Well yes, but it seems that you have a "unique diet" also for the time being... Maybe your unique diet matches one of the 21 meals at the link above. The Hindu meal is rather good in my experience (you don't have to be Hindu to order that any more than you need to be a child to order a kids meal).

Are all those special meals available on all CX flights?
That would be pretty good if true (and I would certainly be getting the fruit platter although Hindi also sounds good).
The options you get under 'manage my booking' should be definitive.

In case OP is worried that the CX menu is all Asian obscurities... there are plenty of regular Western options.

Food preferences aside, their portions aren't that large to begin with. I doubt you'd be full with their adult meal.

If you are 15 you are not considered a UM (Unaccompanied Minor) by CX's standards - see https://www.cathaypacific.com/cx/en_...ed-minors.html, although you can request to be treated as such by paying extra money. I started flying alone between Taiwan and New York since I was 15, about thrice a year, always with a transit in Hong Kong. You will be fine!

I also echo everyone and, yes, you can pre-order CHML (Child Meal) anytime before 24 hours before dep.

As someone who has half a century of travel ahead of you, I would suggest popping a favourite chocolate or snack bar in your carry-on. Most of the time it stays there, but it's nice to know it's there if I feel peckish.

Does this 24 hours before departure only apply if one hasn't checked in?

Am I correct in thinking that once you've checked in online that you then cannot change your meal preference?

@Sbrown499 what cabin will you be flying? We've flown numerous times on CX to/from ORD and HKG (in all 4 cabins - not at the same time obviously). The child meals in the economy cabin are small. Good for very young kids, but you might be hungry as a teenager. PE and Biz are slightly bigger and you'll probably be okay. I recommend bringing on board a cup-o-noodle or something similar that you can heat up on the plane with hot water. Or stock up on sandwiches and snacks to bring on board. (We've never ordered child meals in First Class, but they usually have something that is kid-friendly on the menu.)

I am not sure if you can still do it online, but even if you can't, I'm sure they can take the request if you call.