
first leg, about 1:45 hours, passes austria, czech republic, germany/poland, then copenhagen/denmark.

second leg, a bit longer:
copenhagen/denmark - lithuania - belarius - russia - kazakhstan - kyrgystan - china - bhutan - bangladesh - myanmar - bangkok/ thailand - passing the one or other country where I'd not want to spend a holiday in ;-)
all in all 4644 NM, 5345 SM, and 8602 KM; looks like a flight time of about 10 hours and about 6-7 hours of sleep on lie-flat seats 2A and 2B ;-)
_________