Finnair, British Airways and Japan Airlines (JAL) have started selling joint fares between Europe and Japan, for travel from 1 April 2014.
The Finnish-based carrier said that travellers will "benefit from more flexible routing options and the ability to mix and match flights on all three carriers for the most convenient scheduling and best pricing”.
Finnair flies daily from Helsinki to Tokyo and five times a week to Osaka and Nagoya.
JAL and BA are increasing their scheduled services between Japan and Europe this summer and improving timings of the flights.
From May, two additional weekly services means BA will fly twice daily to Tokyo with daily flights to both Haneda and Narita airports.
JAL will launch daily nonstop flights from March 2014 between Haneda and London.