[CaptainZapp]

So how far and for how long do you think someone can fly with a luggage that fits under their seat?

I can't speak for everyone (and are probably an exception, since even for a 3 week vacation my luggage never exceeds 15kg). But I can easily go for a very long weekend (up to a week) with the contents of a small duffle bag that easily fits under the seat.

Which means a fresh t-shirt, underwear and socks for the entire time. It includes toileteries, something to read and a medium sized camera.

In my experience people usually pack far too much.

[raverbashing]

I agree this is doable for a long weekend, but that's if you take only that and you have everything in one bag.

Seems more of an edge case than the standard. Especially with limitation of liquids in handbags.

[wongarsu]

I don't think it's an edge case for Ryanair. They sell plenty of tickets below $30, making them attractive even for very short trips.

[Symbiote]

The biggest promotion on https://www.ryanair.com/ as I see it is "Two-night stays in Europe from €88" — weekend trips are a big part of Ryanair's business.

A toothpaste tube, deodourant and a mini shaving foam fit easily in the 1L limit.

[ghaff]

Liquids really don’t need to be a big issue. All my toiletries are in a 1 qt. Ziplock even for 2 or 3 week trips. I know some people carry a lot more than that but it’s often not needed.