Delta Air Lines will launch new nonstop flights from Seattle-Tacoma International Airport (SEA) to Barcelona and Rome—four times per week to Rome and three times per week to Barcelona—beginning summer 2026. Additionally, the airline is opening two lounges in one separate-but-connected space. Plus, they’ve secured priority access to 18 gates across Concourses A and B.
“Delta’s commitment runs deep in Seattle, from our people on the ground to our global ambitions in the skies,” said the airline’s President, Glen Hauenstein, in a media statement. “With new international service and the opening of our Delta One Lounge, we’re investing in what matters most to our customers—exceptional, premium experiences—and reinforcing our role as Seattle’s largest global carrier.”
The two lounges will be in a 2-story space spanning over 24,000 sq. ft. Perched on the top floor, the Delta One Lounge offers seats for 149 guests inside and 72 seats on a wrap-around terrace with views of Mt. Rainier. Just below, the Delta Sky Club seats 183, with windows showcasing the surrounding mountains and forests.
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 its lounges and clubs to 57.
Additionally, Delta One customers flying out of SEA now have access to a concierge-style Delta One check-in; similar experiences are offered at BOS, JFK and LAX, with plans to expand to all Delta hubs. Starting June 25, eligible passengers flying in any cabin who check in via the Fly Delta app and enroll in TSA PreCheck Touchless ID (formerly Delta Digital ID) can access expedited bag drop and security lanes, with this benefit rolling out to all Delta hubs by year’s end.
“We welcome the opportunity to grow our partnership with Delta as they expand Seattle’s connections to international communities and businesses,” said Port of Seattle Commissioner Fred Felleman in a media statement. “Delta’s new international flights to Rome and Barcelona and two new lounges enhance our ability to be a welcoming port. These efforts are good for travelers and enhance cultural exchanges that also benefit our vibrant region.”
