Delta Air Lines primarily serves Scotland through Edinburgh Airport (EDI), which has become a major hub for their transatlantic operations. As of 2026, Delta offers robust seasonal and year-round direct service to Edinburgh from its key U.S. gateways, including New York (JFK), Boston (BOS), and Atlanta (ATL). While Delta previously operated flights into Glasgow Airport (GLA), their current strategy has consolidated most of their "own-metal" flying into Edinburgh to take advantage of its high demand for both tourism and business. However, through its deep partnership and codeshare agreement with Virgin Atlantic and Air France-KLM, Delta passengers can still easily reach Glasgow or even smaller Scottish airports like Aberdeen or Inverness by connecting through London Heathrow or Amsterdam Schiphol. This allows travelers to book a single Delta ticket that covers the entire journey into the Highlands or the West Coast, even if the final "leg" is operated by a partner airline.