trans-Atlantic takes 49 % stake in Delta . Airlines hope that codeshare will increase their Delta success . UK - UK routes are the most world 's busiest and lucrative . Delta has had a hard time getting in there , '' he admits . Virgin seen as a much more niche airline than Delta .
trans-Atlantic takes 49 % stake in Delta . Airlines hope that codeshare will increase their Delta success . UK - UK routes are the most world 's busiest and lucrative . Virgin seen as a much more niche airline than Delta .