Delta Air Lines is entering its Dreamliner era Its order of up to 60 Boeing 787-10 planes reinforces Delta's broader strategy of competing aggressively for premium long-haul travelers — a segment that has made the transatlantic market increasingly lucrative.The new planes for long-haul routes will add pressure on US rivals American and United, which are also competing for the same international travelers, especially those in premium cabins that generate the most profit for airlines, including Delta. Delta ...