SN Brussels Airlines (SNBA) was a national airline of Belgium, which mainly operated from Brussels Airport. SNBA was the trading name of the Belgian airline Delta Air Transport. SNBA was a full-service airline, connecting Brussels with the rest of Europe. It also flew to Africa, continuing Sabena's extensive network there. The airline merged with Virgin Express into Brussels Airlines which started operations on 25 March 2007 The airline had its head office in Airport Building 117 in Brussels Airport, Zaventem, near Brussels.

The airline was founded in 2002, when a group of Belgian investors (companies, financial institutions and regional investment companies, as well as the Brussels and Walloon governments), set up SN Airholding, headed by Étienne Davignon. After the 2001 collapse of Sabena, Belgium's flag carrier airline, Belgium was left without a national airline. In February 2002, SN Airholding took over the Belgian airline DAT, a subsidiary of Sabena and changed its trading name to SN Brussels Airlines. In 2002, a strategic reorganization started, led by the former CEO Peter Davies. On 12 April 2005 SN Brussels took holding control of Virgin Express and on 31 March 2006 they announced their merger. On 7 November 2006 they announced at a press conference held at Brussels Airport that the new airline would be called Brussels Airlines.

Before merging, SN Brussels Airlines operated the following aircraft:

SN Brussels Airlines had codeshare agreements with the following airlines:

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