Architects of Malmi airport were Dag Englund and Vera Rosendahl
You can read more about Dag Englund from
and especially Malmi airport is mentioned in http://www.meamnet.polimi.it/archive/017/017m1.html
"Dag Englund gained success in several church design competitions in the 1930s with his elegant functionalist designs. His prize-winning entries were, however, not realised. His most remarkable completed building from the 1930s is Malmi Airport in Helsinki, once a super-modern example of functionalism. He was also well placed in competitions for various institution buildings. The Parochial Institute in JÃ¤rvenpÃ¤Ã¤, for instance, was built in 1950 following a competition. Dag Englund designed numerous industrial and apartment buildings in various parts of Finland. His wife Doris was a fashion designer."
An other architectural site, where Malmi airport is mentioned is http://www.rakennustaiteenseura.fi/taiteentutkija/ajankohtaista/dangerous_liaisons_program.htm
where is said that Program of the Architectural Tour Sunday 18 February 2001
made a coffee break at Helsinki-Malmi Airport, Dag Englund & Vera Rosendahl 1938
More information you can ask from Aino Niskanen, who is an expert (as you see from the www-page). I am not an architect although very interested to get also international help from architects around the world for saving our airport.
Aino Niskanen's email adress is firstname.lastname@example.org