In a lawsuit filed this week in Cook County Circuit Court, Worldspan LP says it is seeking more than $50 million from Orbitz because Orbitz breached its contract with Worldspan by accessing prohibited airline seating information.

Representatives of Orbitz were unavailable for comment.

Worldspan operates a computer reservation system that compiles data for booking flights. When a company, like Orbitz, uses Worldspan's seat maps it is required to pay a fee. Those fees represent a major source of revenue for Worldspan, the suit contends.

Orbitz features direct connect reservations, whereby the company uses an airline's internal reservation system -- rather than a third party's computer reservation system -- when booking a flight. It is one way that Orbitz can offer cheaper fares.

Worldspan contends that Orbitz's direct connect bookings actually rely on seating information from Worldspan.

Get the full story at the Northwest Indiana Times