Originally Posted by
h15t0r1an
One way on Avios from LHR to NCL would be 2250 Avios estimated value £22.50, plus £15 tax if you are able to secure a RFS. So £37.50 using Avios vs £60 full cash.
Your figures are wrong. For one the RFS fee has increased from £30 to £35.
LHR-NCL is 4500 avios one way + £17.50 RFS fee (or down to 2500 avios + £17.50 RFS fee + £25 cash component).
Using 1p/avios, paying cash is cheaper without taking in to account the opportunity cost of avios not earnt on an award ticket.