Alaska Airlines Expands Internationally to Strengthen Its Position in Seattle Against Delta’s Growing Global Operations, Launching Key Transatlantic Routes: You Need to Know

Written By: Sujal Dhar

Sujal Dhar

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August 10, 2025 9:07 PM

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In response to Delta Air Lines’ growing global operations, Alaska Airlines is expanding its international network to solidify its position at Seattle-Tacoma International Airport (SEA). The new transatlantic routes, including flights to London Heathrow and Reykjavik, are part of Alaska’s strategy to capture more of Seattle’s long-haul traffic. This expansion aims to not only increase Alaska’s presence on key international routes but also strengthen its competitive standing against Delta’s continued growth in the region.

Alaska Airlines’ Expanding Reach Across the Globe

Alaska Airlines has significantly expanded its reach, especially after acquiring Hawaiian Airlines, which positioned it as the fifth-largest airline in the United States. This merger enabled Alaska to diversify its fleet and launch new international routes. Recent additions to Alaska’s network include popular destinations such as Seoul, Tokyo, and Rome, signaling the airline’s growing presence in the international market.

Alaska Airlines is now focusing on further strengthening its long-haul network by introducing nonstop flights to London Heathrow and Reykjavik, Iceland, beginning in 2026. These routes are central to Alaska’s efforts to challenge Delta’s dominant position in Seattle. With this expansion, Alaska aims to become the leading international airline at SEA, going head-to-head with Delta for the top spot.

Delta Air Lines’ Expanding International Routes

Since 2014, Delta has firmly established itself as a dominant carrier in Seattle. As Alaska Airlines rolls out its new global routes, Delta has responded by introducing its own international offerings. In May 2026, Delta will begin nonstop flights from Seattle to both Rome and Barcelona, directly competing with Alaska’s own expansion plans. This move marks the latest chapter in the longstanding rivalry between the two carriers.

Both airlines have competed fiercely for Seattle’s international market, and the addition of new routes signals that the competition will only intensify. Delta’s expanded routes are a clear indication of the airline’s commitment to maintaining its leadership in Seattle, ensuring that travelers have a wide array of choices when flying internationally.

New Transatlantic Flights to London and Reykjavik

Alaska Airlines’ new services to London and Reykjavik are major milestones in its effort to grow its international network. Starting in 2026, Alaska will operate daily year-round flights from Seattle to London Heathrow with its Boeing 787-9 aircraft. London is one of the most sought-after long-haul destinations from Seattle, and this new nonstop service is expected to generate significant demand.

However, Alaska will face strong competition on this route, as Delta and Virgin Atlantic already offer daily flights between Seattle and London. Additionally, Alaska’s partner British Airways operates multiple daily services on the same route. Despite the competition, Alaska is poised to leverage its strategic partnerships and growing global network to offer travelers a competitive and appealing service.

In addition to the London route, Alaska will introduce service to Reykjavik, Iceland. Iceland’s popularity as a travel destination has soared in recent years, and the new route will provide a direct connection to Reykjavik for passengers heading to Europe. This route further strengthens Alaska’s position in the transatlantic market.

The Strategic Merger with Hawaiian Airlines

The merger with Hawaiian Airlines has been a game-changer for Alaska Airlines, providing the carrier with a solid foothold in the Pacific region. Alaska now controls Hawaiian’s inter-island operations, which strengthens its presence in Hawaii and the Pacific. The merger also granted Alaska access to Hawaiian’s expanding international network, which stretches across Asia and Oceania.

For Hawaiian Airlines, the merger brought much-needed financial stability, turning around its performance and positioning the airline to better compete with Southwest Airlines, which has been expanding its own footprint in Hawaii. The combined strength of Alaska and Hawaiian Airlines allows the two carriers to present a united front in the Pacific and beyond.

Alaska Airlines’ Growth Strategy Moving Forward

Alaska Airlines has ambitious plans for the future. The airline intends to add at least 12 new international destinations by 2030, signaling its commitment to becoming a global leader in aviation. As part of this strategy, Alaska will continue expanding its long-haul routes and enhancing its international network, aiming to capture a larger share of the international traffic out of Seattle.

Alaska’s goal is clear: to become Seattle-Tacoma International Airport’s number-one international carrier. The airline is focused on growing its footprint in the trans-Pacific and transatlantic markets, offering more choices for travelers and increasing its reach across the globe.

Alaska Airlines is expanding its international network with new transatlantic routes to London and Reykjavik, aiming to strengthen its position at Seattle-Tacoma Airport and compete with Delta’s growing global operations.

A Fierce Rivalry Ahead

The battle between Alaska Airlines and Delta Air Lines is far from over. As both carriers expand their global networks, travelers in Seattle will benefit from more flight options, better service, and increased competition. With both airlines working to capture Seattle’s international market, passengers can look forward to greater flexibility, competitive pricing, and a broader range of destinations.

As the competition for international dominance in Seattle heats up, the region is set to become a key battleground for air travel, with Alaska and Delta each vying to offer the most attractive routes and services to global travelers. This rivalry promises to elevate the air travel experience for passengers, providing more options and enhancing the overall appeal of Seattle-Tacoma International Airport as a global gateway.