How long is the flight time from Ethiopia to Serbia?

What is the approximate flight time between the places Ethiopia (Ge'ez: ኢትዮጵያ '), officially known as the Federal Democratic Republic of Ethiopia''', the country located in the Horn of Africa, and is the most populous landlocked country in the world and Serbia, officially the Republic of Serbia, the country located at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central part of the Balkans?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
9°01'01"N is the latitude of Ethiopia ([fact: ["359538883@trueknowledge.com"]])

44°47'59"N is the latitude of Serbia ([fact: ["261159054@trueknowledge.com"]])

38°44'24"E is the longitude of Ethiopia ([fact: ["646212952@trueknowledge.com"]])

20°28'00"E is the longitude of Serbia ([fact: ["646415584@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:
4,346.78131388 kilometres is the distance between Ethiopia and Serbia

By calculation (generator: ["flight_time_between_two_places@trueknowledge.com"]) I know that:
5 hours and 30 minutes is the flight time between Ethiopia and Serbia

I used the following facts to provide this answer:

9°01'01"N is the latitude of Ethiopia

agree disagree edit

44°47'59"N is the latitude of Serbia

agree disagree edit

38°44'24"E is the longitude of Ethiopia

agree disagree edit

20°27'60"E is the longitude of Serbia

agree disagree edit