Some of the best websites for finding cheap flights easily are:
- http://www.justtheflight.co.uk
- http://www.freedomdirect.co.uk
- If booking from Manchester Airport to Bourgas in Bulgaria try http://www.travelsupermarket.com
- Find great deals on flights to Bourgas, Bulgaria from Manchester. Check late availability, compare prices and make huge savings at Cheap Flights, on http://www.cheapflights.co.uk/flights/Bourgas/
- Used and recommended are www.wizzair.com from Luton
- Balkan Holidays http://www.balkanholidays.co.uk

Additionally / alternatively try:
- Cheap Flights http://www.cheapflights.co.uk
- Travelocity http://www.travelocity.co.uk
- Bulgaria Flights - http://www.bulgariaflights.com
- Travelbag http://www.travelbag.co.uk
- Travelzoo http://uk.travelzoo.com
- Lastminute http://www.lastminute.com

Carhire can be sorted out locally but in our experience http://www.holidayautos.co.uk are always reliable and good value.