The parent of American Airlines swung to a big loss in the second quarter as high fuel prices swamped an increase in revenue.

Still, the results are not as bad as Wall Street had feared.

For the three months ending June 30, AMR said Wednesday it lost $1.45 billion, or $5.77 per share, compared to a profit of $317 million, or $1.08 per share, a year ago.

Excluding special charges to write down the value of its aircraft fleet, AMR said it would have lost $284 million, or $1.13 per share. Analysts, who typically exclude charges from their forecasts, expected AMR to lose $1.40 per share.

Revenue rose 5.1 percent, to $6.18 billion.

Fuel costs spiked 47.4 percent, to $2.42 billion _ an increase of nearly $800 million from a year ago.