DUBLIN (Reuters) - The chief executive of British Airways owner IAG (>> International Consolidated Airlns Grp SA) on Wednesday ruled out any increase in the price offered for Aer Lingus (>> Aer Lingus Group Plc) shares to convince 30-percent shareholder Ryanair (>> Ryanair Holdings plc) to back the deal.

"The offer we have made is the limit which we are prepared to offer," International Airlines Group CEO Willie Walsh told a news conference when asked if Ryanair might demand that IAG increase its bid of 2.55 euros per share.

He added that no bilateral talks with Ryanair are expected and that discussion of route planning between IAG and Ryanair would not be allowed under competition rules.

"We will issue a formal issue offer document within 28 days. We are not anticipating any bilateral discussions" with Ryanair, Walsh said.

(Reporting by Conor Humphries; editing by Jason Neely)