Thanks for your reply too McGoonagall!
Overall, I really like this sentence: '...all in all after the expenses, air fares, transfers, TSA and visa fees and bits and pieces it worked out about £280 cheaper in the USA.' However, if you could specify what was the price in the UK that you know was about £280 more expensive, it'd be great (or simpler, how much he paid in USA?; I know you said you don't remember the exact figures though)
Thanks and waiting for more