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Merged American/US will account for 10% at BWI

The impact on BWI of the $11 billion merger between US Airways Group Inc. and American Airlines’ parent, AMR Corp., will probably not be as pronounced as in states where the two airlines are more popular.

That’s because the combined airline — which, pending federal approval, will take on the American Airlines name — is expected to command about 10 percent of the passenger market share at Baltimore/Washington International Thurgood Marshall Airport. That’s the estimate based on the number of passengers the two companies served in 2012, said BWI spokesman Jonathan Dean.

American and its subsidiary, American Eagle, had a 3.85 percent market share at BWI in 2012, while US Airways and its subsidiaries had 6.03 percent.

Leading the pack at BWI is still Southwest Airlines, which for several years has flown the most passengers of any airline at Maryland’s primary airport. Dean said he doesn’t expect that to change.

In 2012, Southwest’s passenger market share was 57.7 percent, followed by AirTran Airways (a Southwest subsidiary) with 13.5 percent. Delta Air Lines was third, with 9.7 percent of market share.

Dean said BWI doesn’t expect any “significant changes” in the combined carrier’s operations at the airport. He said the two carriers don’t run any overlapping routes.

American Airlines currently operates off Concourse C and US Airways off Concourse D. Dean said he simply expects the conbined airline to simply choose one concourse or the other, Dean said.

Paul Flannigan, a spokesman for Southwest, said Thursday it would be “premature” to comment on how the merger will affect their operations because the merger was just announced.

“As we know from our merger with AirTran, these things take time, and they take a number of years before a clearer picture of someone’s presence is going to be truly known,” Flannigan said. “However, we have a very strong presence at BWI and that will continue to be the case. We look forward to the competition and we look forward to our continued operations at BWI.”

A spokesman for Delta Air Lines said the company did not plan to change any service routes.