Here are the carry-on baggage allowances for Ireland's major airlines — including Ryanair's new size

What am I allowed to bring onboard? We compare the baggage allowances of the major airlines that operate in Ireland 

Baggage allowance varies between airlines. Here's what you need to know

Ryanair has increased the size of its underseat bag by 5cm for travellers this summer.

From Thursday, September 4, the new dimensions will measure 40 x 30 x 20cm. Previously, this was 40 x 20 x 25cm.