please can someone explain the Amsterdam trick that I've seen reference to on this site?
It's a sneaky - but entirely legal - way of saving hundreds of pounds on business class fares.
It involves starting your long haul flight somewhere other than the UK - normally Amsterdam, Dublin or Brussels. It relies on the fact that (a) taxes are much lower there than here and (b) VS has more competition there so offers cheaper fares to people willing to fly via the UK instead of direct.
The disadvantage is you have to actually get to Amsterdam, Dublin, Brussels or wherever which obviously involves extra time and hassle.
Have a go - the easiest way is on Expedia. Enter your route and dates (eg Brussels to Los Angeles) then under additional options at the bottom make sure you select Virgin Atlantic as your preferred airline and Business Class.
Remember your "stopover" in the UK can be up to 24 hours so if you want a morning transatlantic flight, you can enjoy a day trip to Europe the day before and go home for the night!
I should also add it also works on other airlines, not just VS, and in lower cabins although the savings will be much smaller meaning it probably wouldn't be worth the extra time and inconvenience.
As an example I've just searched for flights to LAX going out on 3 June and returning on 10 June. VS are quoting £3300. However via Amsterdam Expedia's quoting £1934, a saving of over £1300 which is not to be sniffed at (though of course you'd have to pay for a flight to AMS and possibly a hotel there).
It makes you realise how much we're being ripped off ...