Leisure airline SunExpress is starting four new routes to Turkey from Luton airport ahead of the summer peak travel period.
All four services start within five days of each other this month.
SunExpress, established almost 30 years ago as a subsidiary of Turkish Airlines and Lufthansa, already serves more than 60 cities in 20 countries and carried eight million passengers last year.
The new Luton routes start with Antalya on June 15, followed by Ankara on June 17, Bodrum on June 18 and Gaziantep on June 20.
The airline, which operates a fleet of Boeing 737-800s, already runs summer flights to Izmir from Luton which resume twice a week from June 18.
The flights to the Turkish capital Ankara and the western city of Gaziantep will be the only direct links from the UK.
Antalya, Ankara, Bodrum and Izmir will be served twice a week and Gaziantep on a weekly basis. Prices start at £76.22 one-way.
The expansion by SunExpress comes as Luton airport nears the completion of a £160 million revamp, which will increase capacity to 18 million passengers by 2020.
The redevelopment includes major upgrades to transport links, including better road access to the M1, new car parking, a remodelled bus and coach interchange and improved rail links to Luton airport Parkway station.
Luton Borough Council has also started work on a £225 million light rail system which will link the airport with the station by 2021.