Agents are being offered a voucher for every city break booking made with easyJet holidays until the end of September.
The budget airline’s tour operation is also discounting more than 100 hotels by up to £60 in a Christmas markets offer on selected breaks taken between November 1 and March 31 next year.
The promotion was introduced on Saturday (September 16) to mark the 100-day countdown to Christmas.
The incentive can be used against any city break booked until September 30.
Destinations featured include Berlin, Edinburgh, Salzburg and Budapest.