aliitle more than 24 hours (with minimal transit and transfer time at air ports)
not sure about 3 hrs 20mins !
UK city Hull. It will take about 4 hours, with a over stop at Heathrow
next time use a catapult
around 1 hour
The flight should take around 40 to 60 minutes.
Postal mails (even ordinary, Par Avion) may reach fast from UK to Bulgaria. As there are many flights from London to Sofia per day. The question is from which part of UK is the mail and to what destination is to reach in Bulgaria. Overall 5-7 working days would be good enough. Priority and Courier mails reach faster.
Bulgaria and Poland are quite a ways away from the UK.
from UK to TOKYO
It depends on where you depart at UK and how fast the plane you are using is.
It takes two hours from the UK to France.
Buy a boat or a plane ........
No direct flight between New Castle, UK and any airport in Bulgaria. Must change, stop over or transit in any UK airport has flight connection with Bulgaria (as for examp. Heathrow, Luton, Townsted). Let say 1 hour from New castle to London Heathrow, Then Heathrow to Sofia- 3 hours. It nakes all 4 (four) hours. But note that these four hours are PURE FLYING in the air time.
Flight time from the UK to Australia is approximately 28 hours - including a stop-over in Asia