CarTrawler has been named as exclusive car rental partner for Monarch Airlines.
Rentals will be available via the monarch.co.uk website.
More than 40 airlines now use the Irish company’s car hire platform to provide access to rentals worldwide.
Chief executive Mike McGearty said: “In 2012, airline ancillary revenue was valued at $27.1 billion. This figure has doubled since 2009 and continues to grow as the aviation industry expands its retail portfolio in response to passenger demand for choice and convenience.
“The commercial opportunity that ancillary products such as car rental present airlines with is becoming increasingly more significant.
“CarTrawler looks forward to working on behalf of Monarch Airlines to maximise the full potential of their car rental program across their entire route network.”