Carrier is also opening two new lounges in city

Delta Air Lines is deepening its investment in Seattle with the announcement of new nonstop service from Seattle-Tacoma International Airport to Barcelona and Rome, alongside the debut of two new premier lounges at the airport: a Delta One Lounge and a Delta Sky Club. Complementing these additions, Delta has secured priority access to 18 gates across Concourses A and B. According to the announcement, this will streamline operations and ensure a more seamless, elevated experience for travelers from check-in to takeoff.

The Rome service will be four times weekly and Barcelona, three times weekly beginning summer 2026.

Delta has launched 28 new markets in Seattle over the past decade and now operates nearly 180 peak-day departures to more than 60 global destinations. Through Delta’s global alliances, customers have access to hundreds more across Europe, Asia and Latin America. 

For the first time ever, Delta is opening two lounges in one separate-but-connected space. Situated across from Gate A11, the two-story space features over 24,000 square feet of views. This is the fourth Delta One Lounge added to the network in the past year and the third new Delta Sky Club, bringing the total of Delta lounges and clubs to 57.