Airline stocks fell Friday as oil prices rose on signs that the U.S. economy is recovering.
Oil prices topped $100 Friday for the first time since mid-October.
Jet fuel is the biggest expense for airlines. A rise in oil prices can greatly increase an airliner's costs.
Shares of American Airlines Group fell $1.13, or 4.3%, to $25 in afternoon trading Friday. Southwest Airlines Co. fell $0.25, or 1.3%, to $18.68. JetBlue Airways Corp. fell $0.17, or 2%, to $8.41. United Continental Holdings fell $1.19, or 3.1%, to $36.88.
Shares of Delta Air Lines fell $0.86, or 3.1%, to $27.02. Delta accidentally sold very cheap tickets online Thursday because of a computer glitch. Delta fixed the problem, but the company said it would honor the fares purchased at the low prices.