If you are after a bargain break then check out this deal to Sunny Beach. Leaving on 25/04 and returning 02/05 (which includes the May bank holiday) flights are with Wizzair and only include small luggage. If you get Wizzair discount through the club you can get prices cheaper.
The apartment is the Sun City Hotel and I thought for the bargain price it would be w full, but it has much better reviews and ratings than more expensive hotels.https://www.tripadvisor.co.uk/Hotel_Review-g499086-d1128421-Reviews-Sun_City_Hotel-Sunny_Beach_Burgas_Province.html
Transfers are with hoppa.com.
Book hotel on booking.com £72
Book flights on Wizzair £99.96
Book transfers at hoppa.com £17.40
Total £189.36/£94.68 *based on 2 sharing*