Get ready, Seattle! Our city is about to become an even bigger gateway to the world in 2026. Seattle-Tacoma International Airport (SEA) is rolling out an impressive lineup of new flight routes, connecting us directly to exciting destinations across Europe, Asia, and beyond. Think Rome, London, Hong Kong, and even the beautiful landscapes of Iceland. It’s a game-changer for anyone itching for an adventure or needing to travel for business.
I’m particularly excited about these additions because it means more choices and often better prices for us travelers. Whether you’re dreaming of a European getaway, a vibrant Asian city break, or exploring stunning natural wonders, Seattle’s growing flight network has you covered. Let’s dive into all the fantastic new routes we can look forward to.
Alaska Airlines Leads the Charge with New Global Routes
Our very own Alaska Airlines is truly stepping up its game, venturing into long-haul international flights like never before. It’s a big moment for them, and for us, as they expand their reach across the Atlantic.
Direct to Rome: Alaska’s First Transatlantic Leap
Imagine this: you could be enjoying authentic Italian pasta and exploring ancient ruins, all thanks to Alaska’s new nonstop flight to Rome (FCO)! Starting May 23, 2026, Alaska Airlines will launch its first-ever transatlantic service with four flights a week during the summer. This is truly monumental for the airline, marking their entry into the European market. Rome, with its unparalleled history, mouth-watering cuisine, and vibrant culture, is the perfect destination for this exciting new chapter. Whether you’re a history buff or a foodie, this route makes Italy much more accessible. You can learn more about this groundbreaking route here.
London Bound: Daily Flights to the UK Capital
And if Rome wasn’t enough, Alaska is also adding a daily flight to London Heathrow (LHR) starting May 2026! They’ll be using a fancy Boeing 787-9 Dreamliner, which means a comfortable ride with premium amenities like lie-flat seats in business class. London is such a pivotal city for both business and leisure; this route will be incredibly popular for anyone traveling across the Atlantic. I can already picture myself exploring the Tower of London or catching a West End show. Details on Alaska’s London route are available here.
Reykjavik Revealed: Discovering Iceland’s Wonders
For those of us craving something a bit more adventurous, get ready for daily flights to Reykjavik (KEF), Iceland, beginning May 29, 2026. Alaska Airlines will use a Boeing 737 MAX 8 for this route, making it easy to reach Iceland’s magnificent landscapes. Think volcanoes, glaciers, and geothermal hot springs—a true nature lover’s paradise. This sounds like an incredible opportunity to explore one of the world’s most unique travel destinations. You can find out more about Alaska’s Reykjavik route here.
Connecting California: Arcata-Eureka Flights
It’s not all about international travel, of course. Alaska Airlines is also boosting connections within the U.S. with a new daily service to Arcata-Eureka (ACV) in Northern California starting April 8, 2026. This route will be serviced by their Embraer 175 aircraft, making it super convenient to reach the stunning Redwood Coast. Imagine a weekend escape to towering forests and breathtaking coastal scenery! Read more about this route here.
Tulsa Bound: Exploring the Heart of Oklahoma
Another exciting domestic addition is nonstop daily flights to Tulsa (TUL), Oklahoma, from March 18, 2026. This new route strengthens Alaska’s domestic network, providing easier access to the cultural and historical landmarks of Oklahoma. It’s perfect for both business travelers and anyone curious to explore another part of the United States. More details on the Tulsa route are available here.
Delta Air Lines Expands European Horizons
Not to be outdone, Delta Air Lines is also significantly expanding its international offerings from Seattle, giving us even more fantastic options for European travel.
Another Path to Rome: Delta’s Direct Service
If you prefer flying Delta, you’re in luck! They’re also launching a nonstop route to Rome (FCO) starting May 6, 2026, with four flights weekly. Having multiple airlines fly to the same popular destination is a win-win for us, often leading to better availability and competitive pricing. This service adds even more convenience for getting to Italy’s capital. You can discover Delta’s Rome route here.
Barcelona Beckons: Delta to Spain
Get ready to immerse yourself in Gaudí’s architectural masterpieces and savour incredible tapas because Delta is launching three weekly flights to Barcelona (BCN) starting May 7, 2026. Barcelona is one of Europe’s most vibrant cities, known for its unique culture, stunning beaches, and delicious food scene. This new route is a fantastic opportunity to explore the Catalonian capital. Details about Delta’s Barcelona flights can be found here.
Cathay Pacific Reconnects Seattle to Asia
After a temporary pause, it’s wonderful to see Cathay Pacific bringing back its long-haul flight between Seattle and Hong Kong. This reinstatement is crucial for travelers looking to explore Asia.
Hello Hong Kong: Cathay Pacific is Back
Big news for anyone planning a trip to Asia! Cathay Pacific is returning to Seattle in April 2026, re-establishing its vital connection to Hong Kong (HKG). This route was sorely missed during the pandemic, and its return means easier access to Hong Kong’s dynamic cityscape and a convenient gateway to other parts of Asia. I can’t wait for the seamless travel this will bring for both business and leisure. More about Cathay Pacific’s return to Seattle is available here.
Southwest Airlines Explores Alaska
While we’re talking about new routes, let’s not forget about our neighbors to the north! Southwest Airlines is adding a new domestic gem to its network.
Anchorage Adventures: Southwest to Alaska
If you’ve ever dreamt of exploring the vast wilderness of Alaska, Southwest Airlines is making it easier than ever. They’re launching daily service between Seattle and Anchorage (ANC) starting May 15, 2026. This means convenient access to Alaska’s majestic landscapes, incredible wildlife, and endless outdoor adventures. It’s fantastic news for nature enthusiasts and anyone looking for a unique travel experience right here in North America. You can learn about Southwest’s new Anchorage route here.
Seattle: A Truly Global Connection Hub
All these new routes really cement Seattle’s position as a major international travel hub. By 2026, Seattle-Tacoma International Airport will connect us to over 60 international destinations! This is a massive win for us residents, offering unparalleled options whether we’re traveling for work, visiting family, or embarking on that dream vacation. The expansion by airlines like Alaska Airlines, Delta Air Lines, and Cathay Pacific means more convenience and choices than ever before.
From the ancient allure of Rome to the modern marvels of Hong Kong, the possibilities for exploration are truly endless. Whether you’re a seasoned business traveler or planning your next big adventure, Seattle is truly becoming your launchpad to the world.
Frequently Asked Questions
When do the new international flights from Seattle begin in 2026?
The new international flights are scheduled to begin at various times throughout 2026. For example, Alaska Airlines’ Rome flight starts on May 23, while Delta’s Rome flight begins on May 6. Cathay Pacific returns to Hong Kong in April 2026.
Which airlines are adding new international routes from Seattle?
Alaska Airlines, Delta Air Lines, and Cathay Pacific are the main airlines expanding international services from Seattle in 2026.
What new European cities can I fly to directly from Seattle?
You can look forward to direct flights to Rome (Italy), London (UK), Reykjavik (Iceland), and Barcelona (Spain).
Are there any new direct flights to Asia from Seattle?
Yes, Cathay Pacific is reintroducing its direct service between Seattle and Hong Kong.
What new domestic routes are being added from Seattle?
New domestic routes include Arcata-Eureka (California) and Tulsa (Oklahoma) with Alaska Airlines, and Anchorage (Alaska) with Southwest Airlines.
What type of aircraft will Alaska Airlines use for its new London route?
Alaska Airlines will operate its daily flights to London Heathrow using a Boeing 787-9 Dreamliner.
How many international destinations will Seattle-Tacoma International Airport connect to by 2026?
By 2026, Seattle-Tacoma International Airport will connect to over 60 international destinations.
Why is Seattle-Tacoma International Airport expanding its international routes?
The expansion is aimed at solidifying Seattle’s position as a vital global travel hub, providing more options and greater convenience for travelers from the Pacific Northwest to reach destinations across Europe, Asia, and other parts of the world.
Ready to Explore?
With all these incredible new flight options, there’s never been a better time to start planning your next travel adventure from Seattle. Whether you’re dreaming of sipping espresso in a Roman piazza, exploring the vibrant streets of Barcelona, hiking through Iceland’s geothermal wonders, or diving into the bustling energy of Hong Kong, Seattle-Tacoma International Airport is making it easier than ever.
Don’t just dream about your next trip—start planning it today! Visit your favorite airline’s website, or head over to the Seattle-Tacoma International Airport’s official site to check out schedules, compare prices, and book your flights. The world is calling, and Seattle is your perfect departure point for unforgettable experiences in 2026 and beyond!
References
Kiplinger
Afar
Lost Coast Outpost
The Sun
Routesonline
Wikipedia
