score:14
No, the same rules apply as for "actual" hand luggage. Otherwise you could carry your >100ml liquids through security in the bag that will go in the hold, transfer them into your hand luggage after security, then take them on to the plane.
The quantities of liquids that you can take through security within in the EU are shown here: https://europa.eu/youreurope/citizens/travel/carry/luggage-restrictions/index_en.htm
Upvote:1
Air company's policy makes no difference here.
You can transport fluids in any hand luggage. There are only restrictions on liquids that you can bring through airport security checkpoint, and it makes no difference whether you plan to bring it onboard an aircraft or not. Any fluids that you obtain after you've passed the security check, are okay for bringing onboard, as long as they fit in your hand luggage allowance (which may or may not exempt counting purchases from duty free zone towards general limit).