Leeds is in the North of England. It is easily reached via international airports e.g. in Manchester (1:15h by train), London Heathrow or Amsterdam. There are connecting flights to Leeds Bradford airport which is also served by some European destinations.
Leeds is 2h by train from Central London (King's Cross/St Pancras) where Eurostar connects to the continent (getting to King's Cross from Heathrow requires crossing London). Trains are cheaper when booked in advance and bought as return tickets.
Travel & Venue
The conference venue, WellMet / Cloth Hall Court, Quebec Street, Leeds LS1 2HA, is close to Leeds train station and most City Centre accommodation.