Delta, Northwest and Continental have signed a 10- year cooperative marketing agreement to connect the three carriers' domestic and international networks, and include code sharing, frequent flyer program reciprocity, and a reciprocal airport lounge program.
The three carriers are to engage in discussions with their respective European partners regarding trans-Atlantic cooperation and inclusion in the SkyTeam Alliance.
The three airlines have no plans to merge their operations and will retain separate boards, management and headquarters and they will remain competitors.
Full details on each carriers own website.
Northwest
Continental
Delta