Delta Expands European Routes from Boston for Summer 2026

Delta Air Lines has announced exciting new routes from Boston to Europe for the summer of 2026, reinforcing its commitment to the city as competition in the aviation market intensifies. Beginning May 16, Delta will launch daily flights from Boston Logan International Airport (BOS) to Adolfo Suárez Madrid–Barajas Airport (MAD), followed by three weekly flights to Nice Côte d’Azur Airport (NCE) starting May 17.

With the addition of Madrid and Nice, Delta will now offer a total of twelve summer transatlantic destinations from Boston. This impressive lineup includes popular cities such as Amsterdam, Athens, Barcelona, Paris, Dublin, Edinburgh, Rome, London, Lisbon, and Milan.

Delta is also enhancing its service to Barcelona, increasing flights from three times per week to daily starting May 7, 2026. Additionally, seasonal flights to Milan Malpensa Airport (MXP) will operate four times per week, beginning a week earlier than in 2025, on May 16.

Both the BOS-MAD and BOS-NCE flights will be operated using Delta’s modern Airbus A330-900neo aircraft. “As Boston’s leading airline, Delta plays a vital role in connecting the city to the world,” stated Paul Baldoni, Delta’s senior vice president of network planning. “By adding nonstop service to Madrid and Nice, we’re enhancing our European network and continuing our commitment to providing an exceptional travel experience from start to finish.”

Delta’s focus on Boston is strategic, as the airline has been working to strengthen its presence in the city since before the COVID-19 pandemic. While American Airlines and United Airlines have a smaller footprint in Boston, Delta’s main competitor has been JetBlue. In 2019, Delta operated 80,513 flights in and out of Boston, compared to JetBlue’s 114,936 flights.

As the airline industry recovers from the pandemic, Delta has increased its resources in Boston, surpassing JetBlue in total flights in 2023 and maintaining that lead in subsequent years. JetBlue has also entered the transatlantic market, launching its own flights to Madrid and Edinburgh this past summer, adding to the competitive landscape.

When asked if the new BOS-MAD route was a response to JetBlue’s expansion, Delta officials emphasized their focus on identifying underserved transatlantic markets. “The true motivation is to fly the largest underserved transatlantic markets,” said Amy Martin, Delta’s vice president of network planning. “We’re flying places based on what we hear from customers and looking at the successes of existing markets.”

As Delta continues to defend its title as Boston’s largest airline, the company is exploring opportunities for further expansion, contingent on gate capacity at BOS. “We’re always discussing how big we can make Boston,” Martin added, indicating that both domestic and international growth are on the table.

With these new routes and increased frequency, Delta is poised to enhance travel options for passengers in Boston, further solidifying its position as a key player in the transatlantic market. Whether you’re planning a trip to the historic streets of Madrid or the stunning beaches of Nice, Delta’s new offerings will make your travel dreams a reality.