DL are reducing their presence in the US domestic market and expanding their international services. But do they know what they are doing?
At http://www.FareMeasure.com I see, for example, that the lowest return fare on the New York to San Francisco route is $466 offered by CO. In my Sunday newspaper the lowest fare I can find advertised for London to San Francisco (by an unidentified airline) is £280 return ($476). I would have thought that profitability on the New York - San Francisco route would be higher at these prices than London - San Francisco which is obviously much further.
By the way this London-San Francisco fare is interesting to me personally. My first holiday on the West Coast was in 1980. The fare was £4 more expensive 25 years ago at £284 despite quite a lot of inflation in the interim!