Finnair has announced its intent to codeshare with American Airlines (AA), British Airways (BA) and Iberia (IB) on the trio’s transatlantic joint business agreement.

As part the partnership, Finnair will adds its AY code on selected AA, BA and IB flights between North America and Europe, while AA, BA and IB will also add their codes to Finnair’s daily flights between New York and Helsinki.

Together, the group will operate up to 102 daily round trips between North America and Europe to up to 42 gateways on either of the Atlantic.

As well as additional codeshare services between the two regions, the group will also allow members of the four airlines’ frequent flyer programs to earn points or miles on the new codeshare flights and dedicated support teams for customers transferring at seven of the airlines' hubs: New York JFK, London Heathrow, Madrid, Chicago, Miami, Dallas and Los Angeles.

Finnair senior vice president of commercial Allister Paterson said the carrier’s participation in the group would increase its portfolio of destinations and open the US to “a new network of potential travellers”.

The transatlantic joint business was established by AA, BA and IB in October 2010.