American Airlines Inc.

American Airlines and U.S. Airways are finalizing merger talks that could see a deal being announced as soon as Feb. 14.

Travelers have been left wondering what to do, as American Airlines (AA) threatens to sue its pilots for what it said were frivolous maintenance requests and other tactics meant to delay flights. The pilots say they are not intentionally creating delays; but rather, addressing potentially dangerous maintenance problems. Delays and flight cancellations have spiked.

AMR Corp., the bankrupt parent of American Airlines, last week said that it signed a nondisclosure agreement with US Airways Group Inc. to explore a possible merger of the two leading U.S. airlines.

AMR Corp., the parent company of American Airlines, filed for Chapter 11 bankruptcy protection, on Tuesday.

American Airlines’s spat with Expedia is the latest incident in an escalating battle between airlines and online travel agents.