GLASGOW Airport led the way in growing passenger numbers last month.

It recorded a modest rise in traffic thanks to new routes to Poland, a greater frequency of flights to Iceland and fans travelling to Celtic's Champions League tie against Juventus in Italy.

However, a slump in domestic numbers saw passenger traffic fall slightly in Edinburgh, while Aberdeen's figures fell as the Super Puma helicopter that serves the North Sea oil industry remained grounded.

Glasgow recorded a 0.6% rise in passenger numbers in March, compared with the same month in 2011.

More than 510,000 people passed through the airport over the period, with the launch of Wizz Air's flights to Warsaw and Gdansk contributing to a rise in demand for international travel.

Wizz previously operated the flights from Prestwick but switched to Glasgow in March because of the greater catchment of Polish nationals in the city.

Glasgow was also boosted by the addition by Icelandair of a fourth weekly service to Reykjavik.

A spokesman said onward traffic to US cities including New York, Boston, Washington DC, Orlando, Seattle and Anchorage accounts for many of the flights to the Icelandic capital.

Celtic fans travelling to Turin for the Juventus match on March 6 further swelled international numbers through Glasgow.

Amanda McMillan, managing director of Glasgow Airport, said: "We enjoyed a busy Easter get-away and the launch of the Lufthansa Regional's direct flight to Dusseldorf, which also marked the return of the Star Alliance network to Glasgow, was particularly pleasing."

At Edinburgh Airport, an increase of more than 13,000 international passengers, up 4.2% on March last year, was not enough to prevent overall numbers falling by 0.1% . In spite of 328,524 international travellers passing through, the first rise on that basis since September, bad weather meant the number of domestic passengers dropped by 3.6%, from 384,774 to 371,083.

Gordon Dewar, chief executive of Edinburgh Airport, said: "Although we remained fully operational, bad weather caused a number of airport closures in other parts of the UK. This naturally caused a slight drop in domestic passengers."

Aberdeen Airport continued to feel the effects of a drop in helicopter traffic, sparked by the continued grounding of the Super Puma EC225 model because of technical faults.

New figures show that 267,341 passengers used the airport in March, down 3% year on year, which was put solely down to decreased helicopter activity.

Helicopter passenger numbers dropped by 18%, with the decline offset by a growth in domestic services to destinations like Sumburgh on Shetland.