You can take more than one, however all liquid containers must hold 100ml or less (100ml of liquid in a larger bottle is not permitted.) and must be placed in a clear plastic sealed bag (zip-loc), the bag should be 20cm x 20cm or smaller and you are responsible for providing it (not least because they sometimes charge an unbelievable price for them at the airport).
Yes, Jet2.com has the IATA airline designator code LS
Jet2.com
Jet2, a British low-cost airline was founded 1978 under the name Channel Express (Air Services). In 2003 the Channel Express established the Jet2 brand from Leeds Bradford International Airport and offers contract charter and air cargo services.
Since 2003
Jet2.com
Jet2 do not currently fly to Dublin so one can not fly from Leeds to Dublin with them. They have flights from Leeds to Cork and Belfast but not to Dublin.
The allowance for hand Baggage is 10 KG IATA size Hold baggage is 22KG
The owner of Jet2.com is Philip Meeson
40 as of today
Boeing 737 or Boeing 757.
Jet2.com has the IATA airline designator code LS
Thomson and Jet2 fly the route from Manchester Airport to Venice Marco Polo Airport.