The Nordic carrier will operate a new daily frequency on the route by adding an extra daily service for customers flying between the two capitals increasing seats by over 20 per cent a day.
Finnish flag-carrier Finnair is to introduce a new premium economy cabin for customers as part of a major investment in on-board improvements.
Further strengthening its summer holiday offering for leisure customers, Finnair will open three new routes - to Bologna, Bordeaux and Porto - for the peak summer season.
The Competition & Markets Authority has launched a competition investigation into the Atlantic Joint Business Agreement between American Airlines, British Airways, Iberia, and Finnair.
Moving the flight to an earlier departure time from Edinburgh, means customers can now connect via fast transfers in the Finnish capital on to popular late-night flights from Helsinki to Singapore, Hong Kong and Bangkok.
Manner, aged 44, will take up the role next year and has a long career in management positions at Nordea, the largest financial group in the Nordic countries.
Finnair is set to boost frequencies on popular Asian routes next summer, including double-daily flights to Hong Kong and additional flights to Japan, as it continues its strong growth across key Asian markets.