Amadeus River Cruises has dropped single supplements on nine summer sailings.
The seven-night cruises will sail on the Seine, Rhone, Saone, Danube, Rhine and Moselle rivers between May and July.
The line said the offer provides solo travellers with a “great opportunity to cruise with Amadeus River Cruises this summer in a wider choice of cabin”.
Included in the offer is a La Belle France round-trip cruise from Paris on Amadeus Diamond. Prices start at £2,581 with departures available in May and July.
Also featured is the Classical Danube itinerary which sails between Passau and Budapest on Amadeus Imperial (pictured). Departures are available in June and July and prices lead in at £2,469.
A Rhine & Danube Symphony cruise between Cologne and Passau on Amadeus Brilliant costs from £2,181 based on a June 28 departure.
All prices are based on one person occupying a cabin and include return flights from London, overseas transfers, meals, wine and beer with lunch and dinner, Wi-Fi, use of bikes and port fees.