Passenger numbers at Copenhagen airport reached 1.9 million in March, up 7.2% against the same month in 2011.
Transfer and transit traffic at the airport grew by 11.2% to reach 247,000.
"Transfer traffic is increasing, thanks not least to Blue1's use of Copenhagen airport as its hub rather than Helsinki," says Carsten Nørland, sales and marketing vice-president of the airport.
The number of passengers on international routes grew 9.6%, while domestic footfall declined by 10.3%. Domestic routes now account for just one tenth of passengers at the base.
London continues to be the airport's most popular destination, ahead of Oslo and Stockholm.