Originally Posted by
jarusoba
Better still, sometimes we cannot get any business class or first class fares for some airlines and city pairs with this method.
I have the same problem. For NA itins there are so many fares loaded, even with an airline specified, that the 40 lowest fares that are displayed don't include J or F. For a Europe - NA itin with one airline specified I was able to get it to include J or F. For many routes it remains impossible to get premium fares though.