Aer Lingus Regional says it recorded its 12th consecutive month of passenger growth in June.
The airline – which is operated by Stobart Air under license from Aer Lingus – carried almost 130,100 passengers last month, a 37% increase on figures for June 2013.
It says that passenger numbers for the first half of the year were 26% higher, with growth particularly strong in the second quarter.
Flights to and from Dublin Airport were the biggest contributor to the airline’s strong performance last month, with a 45% rise in Aer Lingus Regional passengers using the airport.
The Dublin to London Southend route saw 39% more traffic – which the airline said was due in part to the Wimbledon tennis tournament.
Flights to Bristol were also significantly higher, as passengers made their way to the nearby Glastonbury Festival.
During July Aer Lingus Regional also added a new aircraft to its Dublin to Glasgow route.