Solo travel specialist Just You will refund holidays in any European Union country that does not allow travel for British passport holders after Brexit.
The special offer is part of a range of promotional deals that have been launched for bookings made in February.
As well as the Brexit Buster, the operator is offering its lowest ever deposit of £25, available on all holidays booked before the end of February.
Alastair Campbell (pictured), managing director, said: “We are rolling out our best offers this month, headlined by our lowest deposit of £25 on all holidays.
“Just You is all about the solo traveller; we are experts in making our customers feel confident and able to get the most out of their holidays.
“To give that extra reassurance, we have launched our ‘Brexit Buster’. If after Brexit any EU member state does not allow travel for British passport holders we will refund the holiday.”
He added: “Service is something that Just You prides itself in. We have an in-house visa team that will process all visas for our customers, and what is more, for a limited time this service is free.”
The operator is also offering customers booking in February the options of flying from their nearest airport, either direct to the destination, or via a connecting flight, for £99.
Based in Market Harborough, Just You is a sister brand of Travelsphere.