How long is the flight time from akmolinsk to Beijing?

What is the approximate flight time between the places Astana, formerly known as Akmola, Tselinograd and Akmolinsk, the capital and second largest city of Kazakhstan, with an officially estimated population of 691,529 as of 1 March 2010 and Beijing, the film location and Chinese Municipality, in China, the birthplace of Jet Li and Zhang Ziyi and a featured location in the film Hero and The Last Emperor?

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Show reasoning Reasoning

I followed this chain of reasoning:

I know from locally stored knowledge that:
51°10'50"N is the latitude of Astana ([fact: ["359635563@trueknowledge.com"]])

39°53'59"N is the latitude of Beijing ([fact: ["260975086@trueknowledge.com"]])

71°27'39"E is the longitude of Astana ([fact: ["359635579@trueknowledge.com"]])

116°23'30"E is the longitude of Beijing ([fact: ["694464860@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:
3,649.06316328 kilometres is the distance between Astana and Beijing

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

I used the following facts to provide this answer:

51°10'50"N is the latitude of Astana

agree disagree edit

39°53'59"N is the latitude of Beijing

agree disagree edit

71°27'39"E is the longitude of Astana

agree disagree edit

116°23'30"E is the longitude of Beijing

agree disagree edit