Expedia (Nasdaq: EXPE), one of the two online travel agencies in feud with AMR's (NYSE: AMR) American Airlines, has removed fare details of American Airlines flights from its site, escalating the dispute between the two companies.

"The sale of American Airlines flights on our website has been suspended," Expedia announced in a statement. "We remain open to doing business with American Airlines on terms that are satisfactory to Expedia and do not compromise our ability to provide consumers with the products and services they need."

Meanwhile, American Airlines claimed in December that it has seen a year-over-year increase in its overall ticket sales after it pulled its schedules and airfares details for American Airlines and American Eagle flights from Orbitz Worldwide's (NYSE: OWW) Orbitz.com. Following the suspension of American ticket sales on Expedia.com, the airline also said that fliers who will buy tickets directly from the airline will be offered combined package deals for hotels and flights.

However, according to industry experts, American's sales could drop after Expedia's action.

To further boost its business, American, which has more than 3,400 daily flights on average, has shifted to other online travel portals, notably Priceline.com (Nasdaq: PCLN) and Kayak.com, in addition to its own website, AA.com.

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