DELTA AIRLINES FREQUENT FLYER MILES ARE USELESS...If you have an American Express Delta card, you are paying an annual fee and you probably got a few thousand bonus miles...THIS IS A HUGE RIP OFF BY DELTA...Almost every airline gives you a round trip ticket anywhere in the USA for 25 k miles or less, well Delta will hit you with a 40, 000 mile charge even if you book many months in advance...they claim they have 25 k seats, but THEY ARE ALMOST NON EXISTENT, ...tried to book a ticket to Europe many months in advance, most airlines charge 50-60... read full review »