My first TATL was a student charter from LHR to Idlewild on BOAC in the summer of 1963, which in those days was the alternative to Icelandic out of Luxembourg for cheap travel. It cost GBP70 which has always seemed quite cheap and was a fraction of the regular regulated fare. Converting to USD in 1963 and correcting for the CPI the cost was about USD1,500 in today's money. Which is not much different from economy in summer these days. It did come with an open bar (the FAs gave up trying to deliver) and a free helicopter transfer to EWR for my onward flight on Mohawk.