Originally Posted by
Tableview
If you travel A-B-C on a network carrier you can get your boarding cards at 'A' for both sectors. If you do it on a non-network carrier, at 'B' you have to exit to landside, check in again, and clear security. That is why MCTs are irrelevant.
Agree MCTs are irrelevant for a LCC connection, however since you will already have your LCC boarding card (printed in advance at home) there is no need to go landside (unless all connecting passengers have to do this at that airport). This assumes no checked bags, but for a day trip this is a given. It is possible to connect at many airports without doing security again, but this differs by airport and origin point. None in the UK would allow this though.