Luton is the busiest airport in the Wizz network, and has been for some time. At present, the "first wave" of arrivals is of 13-15 aircraft. In addition to that, the increasing number of based aircraft depart at this time.
Blue Air has 4 or 5 morning arrivals most days, but after the Wizz influx (usually around 9-10am). There are often one or two later in the day. They are planning a significant further increase in S18 over S17, but operating no additional routes.