American and US Airways May Announce a Merger This Week

After months of negotiations, American Airlines and US Airways appeared likely to announce a merger this week, which would create the nation’s biggest airline and concentrate even further a once-fragmented industry.

A merger would expand American’s domestic network, particularly in the Northeast and the Southwest, and create a more formidable competitor internationally. The combined airline would jump ahead of United Airlines and Delta Air Lines, both of which have grown through mergers of their own in recent years.

The combination would probably bring to an end the wave of consolidation that has swept the industry. Since 2001 there have been five large mergers, reducing the number of airlines to three main carriers, along with a handful of low-cost carriers like Southwest Airlines and JetBlue, and regional carriers.

These mergers have led to cuts in service to many smaller cities around the country. But they have also created healthier and more profitable airlines that are able to invest in new planes and products. Faced with rising fuel costs, and losing tens of billions of dollars in the last decade, airline executives argued that the only way to survive was to consolidate capacity.

American, which has been in bankruptcy protection since November 2011, is currently the nation’s third-largest airline with domestic and international flights; US Airways is the fourth.

The boards of both carriers are expected to meet some time this week to approve the combination, which then needs to be approved by a bankruptcy judge in New York. A deal could be struck this week or possibly next week, as talks are continuing. A union also requires the approval of federal regulators and antitrust authorities. But analysts expect regulators to approve the deal since there is little overlap between the two networks and no hubs in the same cities.

Even if the deal clears all these hurdles, the merged airline still faces a range of challenges. Airline mergers are often rocky â€" involving complex technological systems, big reservation networks as well as large labor groups with different corporate cultures that all need to be combined seamlessly. United angered passengers last year after a series of merger-related computer and reservation mistakes, and late and delayed flights.

A deal would be a major victory for Doug Parker, the chairman of US Airways, who began pursuing a merger with the bigger carrier soon after American filed for bankruptcy. His argument â€" that American could succeed against bigger airlines only if it combined networks with US Airways â€" swayed American’s creditors, who have a critical say in the company’s future.

The carriers have been discussing a deal for months. In recent days, both sides have moved much closer, but were still trying to figure out how much the merged carrier would be worth and how management positions would be split.

Tom Horton, American’s chairman, who was opposed to a merger for much of the last year, was offered a position as chairman, said a person familiar with the matter but who asked not to be identified because the talks were still under way. US Airways shareholders could end up with about 28 percent of the new airline, and American’s creditors would have 72, this person said.

A merger could be structured to take effect as American exits bankruptcy. The airlines are working for a deal before Feb. 15, when some nondisclosure agreements with American bondholders are set to expire. The timing of a possible deal, however, remains flexible.

The merged company would be called American Airlines and be based in Fort Worth. It would have a combined 94,000 employees, 950 planes, 6,500 daily flights, nine major hubs, and total sales of nearly $39 billion. It would be the market leader on the East Coast, the Southwest and South America. But it would remain a smaller player in the Pacific and Europe, where United and Delta are stronger.

A version of this article appeared in print on February 11, 2013, on page B1 of the New York edition with the headline: American and US Airways May Announce a Merger This Week.