How to do it

There are direct daily flights from London Gatwick to Sofia operated by Balkan Air. These operate continuously throughout the year. British Airways operates a similar daily service from Heathrow.
Consult the Balkan Holidays website for specifics of 16 major UK cities which offer a regular service to Varna/Bourgas airports from May to October and to Sofia from December to March. Package deals at large discounts are a regular feature.

Prices vary but it is possible to fly from £250 in summer and £165 in winter (BA).

If you arrive at Sofia the easiest option is to take daily internal flights from Sofia to the Black Sea resorts of Varna and Bourgas operated by Bulgaria Airways and Hemus Air. Another option is to hire a car. Rail or buses are not recommended.

Useful Contacts:

Airlines

Hemus Air
Sofia Airport Sofia,
1504 Bulgaria
Phone: (359-2) 702-076; 720-754; 658-577
Fax: (359-2) 796-380; 9801 8330

Balkan Bulgarian Airlines
Sofia Airport Sofia 1540, Bulgaria
Phone: (359-2) 881-800; 661-616
Fax: (359-2) 791-206; 709-217; 797-046

Airports:

Sofia Airport
Sofia 1540, Bulgaria
Phone: (359-2) 661-616
Fax: (359-2) 709-217; 797-046

Bourgas Airport
Bourgas 8220,
Bulgaria Phone: (359-56) 792-504; 2831; 688-078; 684-083; 683-151
Fax: (359-56) 39-140; 39-045; 680-010

Varna Airport
Varna 9000, Bulgaria
Phone: (359-52) 650 452; 650 840
Fax: (359-52) 650 830; 650 822