Originally Posted by
satprof
As for avoiding LHR, the taxes are OK if you don't stay more than 24 hours (or if you're in WhY), otherwise, if you want to visit the UK, pay up & look as if you like it! (One avoidance strategy is to stopover in AMS or CDG & visit the UK on Easyjet or Eurotunnel. The tax difference virtually pays for the trip. Oz passports are visa-free these days in both these - in the past, you needed a Visa to enter France.)
What happens if your original itinerary has <24hr transits through LHR, then at a later date (after having already paid and done some travelling) you reschedule flights such that the transits become stopovers ?