Great Little Breaks is on track to launch UK rail packages from the end of August.
The operator, which has pledged to fill the void left by Super Break, is testing its new online rail booking system and is confident it will be ready for agents by the end of the summer.
All rail trips will need to be booked as part of a hotel package and will be Abta-bonded.
More:Great Little Breaks to make agent portal live in June
Great Little Breaks also aims to make theatre packages available once it is clear when theatres will reopen.
The operator began selling proactively through the trade in January and is targeting 50% of sales from the trade in the next 12 months. Currently about 20% of its 250 hotel partners are on sale.