yes

For every excess pound, how much does Korean Air charge for international flight?

None, it was shot down by a Soviet fighter with an air-to-air missile; the Korean Air flight had accidently wondered into Soviet airspace and the Soviets were convinced that it was for spying purposes, as the accident occured during the Cold War

I think you need to convert it in Korean currency not unless your from the Philippines and you'll book your flight in the Philippine airline services.

11hr 55min Auckland (AKL) to Seoul Incheon (ICN) Flt by a nonstop flight operated by Korean Air.