How long is the flight time from Rick Husband Amarillo International Airport to Hainan?

What is the approximate flight time between the places Rick Husband Amarillo International Airport, the public airport located six miles (10 km) east of the central business district of Amarillo, a city in Potter and Randall Counties, Texas, United States and Hainan (Pe̍h-ōe-jī: Hái-lâm, pinyin: Hǎinán, jyutping: hoi2 naam4; literal meaning: "South of the Sea"), the smallest province of the People's Republic of China (PRC)?

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I followed this chain of reasoning:

I know from locally stored knowledge that:
35°13'09"N is the latitude of Rick Husband Amarillo International Airport ([fact: ["152705793@trueknowledge.com"]])

18°13'15"N is the latitude of Hainan ([fact: ["420543275@trueknowledge.com"]])

101°42'20"W is the longitude of Rick Husband Amarillo International Airport ([fact: ["152705801@trueknowledge.com"]])

109°34'01"E is the longitude of Hainan ([fact: ["420543291@trueknowledge.com"]])

By calculation (generator: ["distance_between3@trueknowledge.com"]) I know that:
13,211.0542441 kilometres is the distance between Rick Husband Amarillo International Airport and Hainan

By calculation (generator: ["flight_time_between_two_places@trueknowledge.com"]) I know that:
17 hours and 30 minutes is the flight time between Rick Husband Amarillo International Airport and Hainan

I used the following facts to provide this answer:

35°13'09"N is the latitude of Rick Husband Amarillo International Airport

agree disagree edit

18°13'15"N is the latitude of Hainan

agree disagree edit

101°42'20"W is the longitude of Rick Husband Amarillo International Airport

agree disagree edit

109°34'01"E is the longitude of Hainan

agree disagree edit