Why is Heathrow so expensive to fly from?

[shrek2]

I mean have a look at the two screens. An extra flight is cheaper than just direct from Heathrow on the same airline. I need to go from Heathrow as I want to see my family before I go and when I come back. I have noticed taxes are £20 more from Manchester than from Heathrow but the fare is much more expensive direct from Heathrow.

I find it bizarre to be honest.

 

[shrek2]

Thanks Fox i'll have a look now. Should I just go on the Air New Zealand website?

 

[shrek2]

Just about to book with Air New Zealand. Or should I wait to see if they become cheaper?