Ryanair will operate eight new routes from Shannon next year as part of drive to boost passenger numbers.
The carrier will serve Birmingham, Fuerteventura, Kaunas (Lithuania), Leeds, London Luton, Riga, Tenerife from the mid-west airport. It will also operate its first domestic service from Shannon to Dublin.
The airline said its Shannon routes will deliver two million passengers to the mid-west in the coming year, while supporting 2,000 jobs in the region.
Ryanair's Peter Sherrard said: "These eight new routes provide an additional link to London from Shannon, while passengers can now also avoid the nightmare traffic on the M50 and N7, with flights to Dublin for less than half the price of a tank of petrol."
Meanwhile Italy's highest administrative court has accepted an appeal by Ryanair against planned flight cuts at Rome's smaller Ciampino airport, a legal source said today.
The court's decision suspends a plan by Italy's aviation authority ENAC to reduce the total number of flights out of Ciampino by various airlines to 100 from 138 after complaints from residents of congestion and noise.
A definitive decision will only be taken at a later stage when a court decides on the merits of the case. Ryanair, which has also asked the European Commission to intervene, says military aircraft are to blame for the noise at night.
Ryanair has dismissed ENAC's claim that runway repairs are also a reason for the cuts, which it said were the result of "bogus restrictions by the Italian government" aimed at helping Italy's ailing flagship carrier Alitalia.
Ryanair has said the planned traffic cut will force it to cancel 66 flights a week, or about 12 percent of its flights out of Ciampino, Rome's second-largest airport.
Ryanair has repeatedly criticised what it says is Italian state support for loss-making Alitalia. The government is trying to sell the state's controlling stake in the airline.