UPDATE 1-Brussels Airlines says in talks to enter alliance

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BRUSSELS, April 29 (Reuters) - Belgium's Brussels Airlines said on Tuesday it was in talks with various partners to enter one of the world's main commercial airline alliances and keeping the door open for a possible stake sale to a new shareholder. "A possible financial participation of a new shareholder could only be considered under the condition that the sustainable future, the identity and the autonomy of Brussels Airlines are guaranteed," the carrier said in a statement.

Reports in the Belgian and the German press quoting industry sources said German airline Lufthansa (LHAG.DE: Quote, Profile, Research, Stock Buzz) was considering buying Brussels Airlines.

"As to the rumours that are currently circulating on the issue of consolidation in air traffic, the company will abstain from further comments," Brussels Airlines said. (Reporting by Julien Ponthus; Editing by Dale Hudson/Will Waterman)