NEW YORK, Oct. 28 (UPI) -- Discount airlines have launched time-limited sales with one-way fares as low as $25 to get U.S. customers back into the traveling mood.

NEW YORK, Oct. 1 (UPI) -- Air fare experts say discount fares offered by U.S. airlines are on the rise and may continue to increase.

HOUSTON, March 8 (UPI) -- U.S. airlines are cutting some fares to help attract passengers amid the nation's economic downturn, analysts said.

WASHINGTON, Dec. 16 (UPI) -- The Air Transportation Association said 9 percent fewer U.S. travelers will fly this holiday season, a drop observers say is prompting fare discounts.

STATE COLLEGE, Pa., July 7 (UPI) -- The May 12 earthquake in China's Sichuan province, the region's first in recorded history, has U.S. geologists studying it with an eye to the future.

CHICAGO, July 3 (UPI) -- United Airlines has raised prices at the bar and hopes to raise $1 billion annually from a variety of fees and services, a spokesman for the U.S. company said.

WASHINGTON, May 1 (UPI) -- Leisure travel and extra business trips on U.S. commercial flights could be substantially reduced in the next year, industry analysts report.

FORT WORTH, Texas, April 12 (UPI) -- American Airlines has announced it will raise U.S. fares by as much as $30 on round-trip tickets to help offset rising fuel costs, the company said.

CHICAGO, Sept. 4 (UPI) -- "The world will be on sale" this fall as U.S. airlines scramble to fill seats as the travel market cools, a travel agency executive said.