How long is the flight time from Dayton International Airport to Bergen?

What is the approximate flight time between the places James M. Cox Dayton International Airport, also referred to as simply Dayton International Airport, the public airport located nine miles (14 km) north of the central business district of Dayton, a city in Montgomery County, Ohio, United States and Bergen, the second largest city in Norway, with a population of 252,051 as of 1 January 2009?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
39°54'08"N is the latitude of Dayton International Airport ([fact: ["152455097@trueknowledge.com"]])

60°22'15"N is the latitude of Bergen ([fact: ["360013287@trueknowledge.com"]])

84°13'09"W is the longitude of Dayton International Airport ([fact: ["152455105@trueknowledge.com"]])

5°24'30"E is the longitude of Bergen ([fact: ["628093056@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:
6,216.71982701 kilometres is the distance between Dayton International Airport and Bergen

By calculation (generator: ["flight_time_between_two_places@trueknowledge.com"]) I know that:
8 hours is the flight time between Dayton International Airport and Bergen

I used the following facts to provide this answer:

39°54'08"N is the latitude of Dayton International Airport

agree disagree edit

60°22'15"N is the latitude of Bergen

agree disagree edit

84°13'09"W is the longitude of Dayton International Airport

agree disagree edit

5°24'30"E is the longitude of Bergen

agree disagree edit