Thanks for the replies. I can only find flights from Newcastle to Hononlulu going out 29/3/2012 coming back 12/4/2012 for 3 people at £11619 - phoned BA to see if they could find something cheaper and they said no.
BA said if I did a stopover in New York they said the price would go up to £4795 each. From Amsterdam it is 8225 euros and from FCO it is 7018 euros return.
Could I fly to Rome a couple of days earlier to obtain the cheaper flights but leave the last flight from LHR to Rome and pay for a one way ticket to Newcastle?
Any other suggestions welcome.
I was hoping to have a few stops in USA and increase my Tier Points but not at the prices quoted.