To combat the skyrocketing price of fuel, United Airlines, raised its fares on domestic flights by $10. If history is any indicator, expect other airlines to follow suit.

The increase is the fourth attempted by the airline industry so far this year, according to a tally by FareCompare.com, which tracks changes in airline ticket prices. Two of those have been largely successful, FareCompare.com said.

Fuel is one of the airline industry's biggest costs, and the surge in oil prices is threatening to erase the profit margins airlines have managed to achieve in recent years. Crude prices climbed back above $100 a barrel earlier this week. On Friday, light, sweet crude for April delivery rose 58 cents to settle at $98.81 a barrel.