Delta Airlines Warns Of Quickly Rising Fuel Costs

Delta Air Lines Inc. delivered a profit in the third quarter but warned soaring jet fuel prices might result in an unprofitable fourth quarter.  Since August, spot prices for New York Harbor Jet Fuel have risen 37%. Delta expects fuel prices between $2.25 and $2.40 a gallon in the quarter, up from $1.94 in the third.    Fuel costs accounted for 20% of Delta's adjusted operating expenses in the third quarter. Soaring costs are "going to be a limiter on our ability to post a profit in the quarter. At these current fuel…