Seattle Connects Hong Kong, Rome, London, Reykjavik and Barcelona as Six New Intercontinental Services Expand Global Travel: All You Need to Know

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Seattle connects Hong Kong, Rome, London, Reykjavik and Barcelona through six new intercontinental services, giving global travel a major boost. Now, travellers gain more direct choices between Seattle and Europe and Asia. Seattle connects these markets as international aviation expands. Hong Kong, Rome, London, Reykjavik and Barcelona strengthen the network, while six new intercontinental services widen access. Moreover, global travel benefits from fewer connecting journeys and greater destination choice. As Seattle connects more international gateways, travellers can reach Hong Kong, Rome, London, Reykjavik and Barcelona more easily. Here is all you need to know about the expanding global travel network.

SEA Airport Handles Record 52.7 Million Passengers

Seattle-Tacoma International Airport handled 52.7 million passengers during 2025, establishing a new annual passenger record, according to the Port of Seattle.

International passenger traffic reached 7,105,076, representing growth of 7.8%. Domestic passenger traffic accounted for 45,610,105 travellers.

The figures underline the importance of domestic travel to SEA while also showing continued growth in its international market.

SEA Airport’s Key Connectivity and Passenger Figures

Seattle-Tacoma International Airport is strengthening its position as a major U.S. aviation gateway. SEA handled a record 52.7 million passengers in 2025, including more than 7.1 million international travellers, with international traffic rising 7.8%. Domestic travel remained dominant at more than 45.6 million passengers. The airport is served by 37 airlines and connects travellers with 96 domestic and 36 international nonstop destinations. By August 2026, SEA’s international network included 63 nonstop services to 37 destinations operated by 29 airlines. Six new intercontinental services were added during 2026, further expanding Seattle’s direct links with major tourism and business markets in Europe and Asia.

Six New Intercontinental Services Transform Seattle’s 2026 Network

International expansion accelerated during 2026 with six new intercontinental services.

The additions connect Seattle with five major international destinations across Europe and Asia.

Rome receives new services from both Alaska Airlines and Delta Air Lines. This means six services were added even though they cover five destinations.

The expansion strengthens SEA’s connections with major European tourism markets while restoring an important direct Asian connection.

Hong Kong Returns to Seattle’s Nonstop Network

Cathay Pacific restored nonstop service between Seattle and Hong Kong on 30 March 2026.

The return expands SEA’s Asian connectivity and provides another direct option for travellers moving between the Pacific Northwest and Asia.

Hong Kong also functions as a major international aviation hub, meaning the route can support journeys extending beyond the immediate Seattle-Hong Kong market.

For Seattle tourism, the service increases direct access from an important Asian gateway while giving travellers from the Pacific Northwest another international nonstop option.

Alaska Airlines Expands From Seattle to Europe

Alaska Airlines made Europe a major component of its international expansion from Seattle during 2026.

The airline launched its Seattle–Rome service on 28 April.

London and Reykjavik followed during May, creating three additional European links from SEA through Alaska Airlines.

These routes connect Seattle directly with three distinctive European visitor markets.

Rome provides access to Italy and Southern Europe. London is one of Europe’s largest aviation and tourism gateways. Reykjavik adds a direct connection with Iceland.

Together, the services significantly broaden Alaska Airlines’ long-haul international presence at its Seattle hub.

Delta Adds Rome and Barcelona to Seattle’s European Network

Delta Air Lines also expanded Seattle’s European connectivity during 2026.

New services to Rome and Barcelona began in May.

The Barcelona route gives SEA another direct link with Spain, while Rome adds additional capacity between Seattle and Italy.

The combination of Alaska and Delta expansion means Seattle’s European network is becoming increasingly diversified.

Travellers now have additional nonstop opportunities for journeys involving the United Kingdom, Iceland, Italy and Spain.

SEA’s International Network Now Reaches Multiple Global Regions

Seattle’s international aviation network extends well beyond the six additions.

The Port of Seattle’s official international-route directory shows nonstop connectivity spanning Canada, Mexico, Central America, Asia, Europe and the Middle East.

This geographic reach is important for both inbound and outbound travel.

International visitors gain more opportunities to reach Seattle without domestic connections, while residents of the Pacific Northwest receive a broader selection of direct overseas services.

Seattle’s airport network also supports other parts of the regional visitor economy, including hotels, conventions, business travel and cruise tourism.

Aviation Expansion Supports Seattle’s Cruise Gateway

International air connectivity has particular importance for Seattle because the city is a major gateway for Alaska cruises.

The Port of Seattle has scheduled a record 330 cruise calls and approximately 2.1 million revenue passengers during the 2026 cruise season.

Official Port research indicates that 82% of Seattle cruise passengers arrive by air, while 53% stay overnight for an average of 1.7 nights.

This creates a direct relationship between SEA’s aviation network and Seattle’s cruise tourism economy.

More international services can provide additional options for overseas travellers beginning or ending an Alaska cruise in Seattle.

Athens Will Join Seattle’s Network in 2027

Seattle’s international expansion is already extending into the 2027 schedule.

Alaska Airlines has announced nonstop service between Seattle and Athens beginning 12 May 2027.

The route is scheduled to operate three times weekly using Boeing 787-9 aircraft.

It is expected to become Seattle’s first-ever nonstop connection with Athens, creating direct access between the Pacific Northwest and Greece.

The route will add another Southern European destination to SEA’s expanding network.

Another Seattle–Paris Service Is Coming

Alaska Airlines is also scheduled to add another Seattle–Paris service in May 2027.

The announcement demonstrates that SEA’s recent European expansion is not limited to the six services introduced during 2026.

Athens and additional Paris service will extend a period of international network growth that has already brought new links with Rome, London, Reykjavik and Barcelona.

For travellers, this creates greater choice for direct journeys between Seattle and Europe.

Seattle Strengthens Its Role as an International Gateway

SEA’s aviation growth is significant because it combines record passenger traffic with expanding international connectivity.

The airport handled 52.7 million passengers in 2025, including more than 7.1 million international travellers. International traffic increased 7.8%, while six new intercontinental services followed during 2026.

Hong Kong strengthened Seattle’s Asian network, while Rome, London, Reykjavik and Barcelona expanded European access. Athens and additional Paris service are already scheduled for 2027.

The result is a broader international gateway connecting Seattle with more global tourism markets while supporting the city’s hotels, attractions, business travel and Alaska cruise sector.

Seattle Connects Hong Kong, Rome, London, Reykjavik and Barcelona as Six New Intercontinental Services Expand Global Travel because SEA is building a wider international network after record passenger traffic. Cathay Pacific restored Hong Kong, Alaska Airlines added Rome, London and Reykjavik, while Delta introduced Rome and Barcelona services. These connections give travellers more nonstop options and strengthen access between the Pacific Northwest, Europe and Asia. They also support Seattle’s wider visitor economy, including hotels, business travel and Alaska cruises. With Athens and additional Paris service planned for 2027, SEA’s international expansion is set to continue beyond this six-service growth cycle.