(ShareCast News) - Budget airline easyJet posted a rise in traffic and the load factor in January.Passenger numbers were up 11% from the same month last year to 4.75m as the load factor - which gauges how full the flights are - edged up to 86.2% from 85%.On a rolling 12-month basis, traffic grew 6.9% to 74.9m, while the load factor nudged down to 91.5% from 91.6%.