BRA (in Swedish good, well) is a new name for the Braathens aviation group. A long time ago there used to be a Norwegian airline called Braathens SAFE. SAFE stood for South American and Far East airlines. It used to be a heavy competitor of SAS in Norwegian domestic traffic until then SAS managed to buy the company. Gradually the name Braathens vanished from the Norwegian market. But instead of the Braathens SAFE a group of new airlines popped up using Norwegian funding but this time in Sweden. The group used a number of names for its operations: Blekingeflyg, Braathens Regional, Flysmåland, Golden Air, Gotlandsflyg, Kalmarflyg, Kullaflyg, Malmö Aviation, Sverigeflyg and Sundsvallsflyg. Now all these have been bundled under the new name BRA, which stands for Braathens Regional Airlines.

This machine SE-DSX is an Avro RJ-100 which was delivered to SAM Colombia in December 1994 and which then has flown since 2001 under the brands of Malmö Aviation and Braathens Regional Airlines BRA.
Picture from Helsinki Vantaa airport 18.5.2018 by Ilkka Siissalo.

Another view of the same SE-DSX of BRA.
Picture from Helsinki Vantaa airport 18.5.2018 by Ilkka Siissalo.

BRA SE-MKG is an ATR-72-600, seen here landing in Helsinki. It's a new one, delivered in November 2016.
Picture from Helsinki Vantaa airport 18.5.2018 by Ilkka Siissalo.

Flygbra SE-MKA is an ATR-72 which is still quite young. Braathens Regional Airways (Flygbra) took it in use in November 2015.
Picture from Helsinki Vantaa airport 26.3.2019 by Ilkka Siissalo.