NEW YORK, Feb 6 (Reuters) - Frontier Airlines (FRNT), the Denver-based low-cost airline, said on Wednesday that it expects its cash flow to turn positive during the current fourth quarter as traffic rebounds from the Sept. 11 attacks on the United States. Wall Street analysts expect Frontier to report a profit of 12 cents a share for the March fiscal fourth quarter, according to research firm Thomson Financial/First Call. The airline said that it ended the third quarter with about $91.8 million in cash and cash equivalents. During its second quarter, Frontier was losing about $85,000 a day, but that cash flow began to approach break-even during its third quarter. Frontier on Tuesday reported a fiscal third-quarter profit, aided by a rebound in travel demand and $2.3 million from the federal bailout initiated after the attacks. Without the government cash and other unusual items, Frontier reported a loss of $1.4 million, or 5 cents per share. Frontier shares gained about 1.89 percent, or 41 cents, to $22.11 Wednesday on the Nasdaq.