Could you purchase two WT+ seats use the points to upgrade both of you to Business Class? That way you would both enjoy premium cabin experiences and be able to sit together.

It depends on your given flight crew. Some will be lenient and some will be by the book and will tell you that you can't. My wife and I have been in separate classes and most of the time the curtain has been penetrable (as you put it).

I don't think anyone minds the quick pop in and check but it is extremely annoying to have someone standing in the aisle chatting. As to the dementia, it kind of surprises me you wouldn't be sitting with him even if it meant HE went economy as well.

I hope you didn't read the full question or your response is even more rude than it comes off at first read.

To the OP: talk to the FA, tell them your story, ask if it is ok, and also ask how you can minimize disruption to the other FC pax while doing so.

Good luck.

One way to minimize the disturbance to other passengers may be to make sure he gets an aisle-accessible seat at the very rear end of the first class cabin.

That is a very smart solution but the out of pocket cost would probably still be higher. I mean, I don't know the ticket prices or miles conditions, but in the OP's situation only a single coach ticket is bought. The other pax flies "free" in first. I agree it would make the most sense to buy two coach and upgrade both to business. Perhaps there are even enough miles to get one business class ticket entirely for free, buy one coach and have that upgraded to business with the remaining miles. That would be the ideal solution.

Till

As said, the poster needs to speak with the crew and even should anyway if her father could have problems during flight. To that end, I would suggest that she reserve the last row in the J cabin and an aisle seat. That way if acceptable to the crew, the disturbance to the cabin will be less obtrusive.

In this case giving the FAs a tip that there is a family member in the back should there be a problem would probably be a good idea anyway. Over and above that I bet the gentleman will sleep through a large portion fo the flight so an occational check would possibly go completely unnoticed by many guests in F anyway so way all the hoopla. The OP was just asking to go check everynow and then if the relative is doing ok.

Great idea!

At the risk of going a bit off-topic for this thread, the rules for writing country names in English evolved over centuries. Airport codes are an invention of the early computer age, when upper-case-only text was standard. In addition, writing them in upper-case helps distinguish them from three-letter words that happen to be spelled the same way: a FAT passenger is not (necessarily) also a fat passenger!

I would think most crew would be quite OK about having visit your father briefly, discreetly and quietly (in a way that causes as little disturbance to other passengers as possible). If I were a passenger nearby, I certainly do not have any problem with someone checking up on his elderly father as long as he is considerate towards others and do not cause too much disturbance.

However, given that your father suffers from dementia, it is possible that he may be required to travel with an assistant. You might like to check with the carrier about this.

While I agree there's no need to sting the OP
 

As someone who went through several plane flights with an elderly parent also with mild dementia, there is NO guarantee the OP's father will sleep on such a long flight. "Sundowning" is a common effect of dementia, where as the night progresses the person becomes more anxious, not less.

Leaving aside the F vs Y debate, what happens if your father becomes agitated or confused mid flight? Has he been on any flights recently where you could at least gauge his reactions? Will he be on any special medications? I think you need to make sure the disruption on his end will be manageable for his sake as well as other F passengers.

clearly, you've never been to Fresno

Say, WHAT?? ;)