How long is the flight from manila to Norway?

A random search for flights from Manila (MNL) to Oslo Torp (TRF) shows:

OPTION 1: 17hr 20min via Amsterdam (AMS)

MNL - AMS KLM Royal Dutch Airlines Flt 804 Dep 10:45am 04Jun,Fri

AMS - TRF KLM Royal Dutch Airlines Flt 1221 Dep 08:35pm 04Jun,Fri

Flight Duration: 15hr 20min; Layover Time: 2hr 00min; otal Trip Time: 17hr 20min

OPTION 2: 19hr 45min via Bangkok (BKK) & Zurich (ZRH) [Cheaper Option]

MNL - BKK Philippine Airlines Flt 732 Dep 07:30pm 04Jun,Fri

BKK - ZRH Swiss International Air Lines Flt 181 Dep 11:25pm 04Jun,Fri

ZRH - OSL Swiss International Air Lines Flt 1210 Dep 07:00am 05Jun,Sat

Flight Duration: 17hr 20min; Layover Time: 2hr 25min; Total Trip Time: 19hr 45min