European travel is more convenient than ever with new Transatlantic Summer Routes- flights from Seattle to London, Rome, and Reykjavík by Alaska Airlines. For the first time, Alaska Airlines has expanded its market by adding the transatlantic route to its flight network. These new routes provide travelers not only frequent connectivity but also reliable service and affordable options at competitive prices.
If you have not yet booked your European vacation, this guide will help you book and save on flights to the most enthralling destinations: London, Rome, and Reykjavík.
Flights From Seattle-Tacoma International Airport (SEA)! Why Alaska Airlines Expanded Its Seattle Hub?
Alaska Airlines, which served major US domestic routes, expanded to a full-service carrier after its merger with Hawaiian Airlines. The expansion came after a high demand for European routes, particularly from Seattle. Serving as the hub for Alaska Airlines strengthens its role as a global gateway. With new international demand, infrastructure upgrades, and strategic partnerships, Alaska Transatlantic's expansion plays a key role.
So, why Alaska Airlines expanded into Europe- the possible reasons are
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International Growth Strategy by adding nonstop flights from Seattle to London Heathrow (LHR) and Reykjavik (KEF).
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The Hawaiian merger and leveraging Alaska’s partnerships with oneworld and Icelandair were added benefits that helped Alaska build its network.
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Seattle Airport underwent a $546 million modernization, which rebuilt the North Main Terminal. While this created more efficient passenger flow, it also supports Alaska’s international expansion.
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Hawaiian Airlines merged with Alaska, influencing its fleet and service. The Boeing 787-9 Dreamliner is an ideal fit for long-haul flights and is well-suited to transatlantic operations.
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The SEA-TAC transatlantic expansion was not just for budget travelers but also for premium travelers with business-class cabins.
The Three New Seattle to Europe Nonstop Flight Routes via Alaska Airlines
Planning your European getaway? Travelers from Seattle can now have direct connectivity to three major cities: London, Rome, and Reykjavik. While other airlines operate on the same route, Alaska Airlines offers added benefits and an experience you do not want to miss.
Alaska Airlines Seattle to Rome Flights
You can book nonstop from Seattle-Tacoma International Airport (SEA) to Rome Fiumicino Airport (FCO) with Alaska Airlines this summer for transatlantic travel. This is one of the most convenient nonstop options for travelers flying from Seattle to Italy in the Pacific Northwest. Alaska Airlines launched the SEA-FCO flight route on April 28, 2026, as its official seasonal expansion into Europe. The daily nonstop service covers over 5,600 miles, making it one of the absolute longest nonstop routes in Alaska Airlines' history. Alaska selected Seattle-to-Rome as it is one of its largest unserved international markets in the Pacific Northwest.
Operated by the modern Boeing 787-9 Dreamliner, the flight features spacious cabins, premium seating options, in-flight entertainment, Wi-Fi, and enhanced comfort for long-haul journeys. Passengers can choose Business Class, International Premium Class, or Main Cabin for their Seattle-to-Rome flights.
Alaska Airlines Seattle (SEA) to Rome (FCO) Flights Schedule
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Seattle to Rome Approximate Flight Time: Around 11 hours 45 minutes
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Eastbound (SEA–FCO flights): Departs Seattle at 5:30 p.m. and arrives at Rome Fiumicino (FCO) at 1:15 p.m. the following day (approx. 10 hrs 45 mins).
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Westbound (FCO–SEA flights): Departs Rome at 3:25 p.m. and arrives back in Seattle at 5:45 p.m. the same day (approx. 11 hrs 15 mins).
Other Details on SEA TO FCO flight
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Seattle to Rome Flight Frequency - Daily 1nonstop flight (season)
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Seattle to Rome Round Trip Flight Fare- starts at $599
Alaska Airlines Seattle to London Flights
You can travel nonstop on the busiest international route from Seattle-Tacoma International Airport (SEA) to London Heathrow Airport (LHR). Alaska Airlines offers a year-round, comfortable, and efficient way to reach Europe's leading business and leisure destinations. The route has benefited not just leisure seekers but also business travelers.
Alaska Airlines launched the SEA-to-LHR route on May 21, 2026, strengthening its position as a growing global carrier while expanding its long-haul network. The Boeing 787-9 Dreamliner serves the route with spacious seating, premium cabin options, in-flight entertainment, Wi-Fi, and improved cabin comfort for passengers. This Seattle-to-London flight is one of Alaska Airlines' longest nonstop flights, covering 4,000 miles. The Boeing 787-9 Dreamliner offers spacious cabins and in-flight amenities to make this long-haul journey comfortable.
Alaska Airlines Seattle (SEA) to London (LHR) Flights Schedule
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Seattle to London Approximate Flight Time: Around 9 hours 30 minutes
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Eastbound (SEA–LHR): Departs Seattle at 9:40 p.m. and arrives at London Heathrow (LHR) at 3:05 p.m. the following day.
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Westbound (LHR–SEA): Departs London at 5:00 p.m. and arrives back in Seattle at 6:50 p.m. the same day.
Other Details on SEA TO LHR flight
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Seattle to London Flight Frequency - Daily 1nonstop flight (year-round)
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Seattle to London Round Trip Flight Fare- starts at $699
Alaska Airlines Seattle to Reykjavík Flights
The third Alaska Airlines transatlantic flight route started on May 28, 2026. The Seattle-Tacoma International Airport (SEA) to Keflavík International Airport (KEF) route represents a unique operational option and solidifies Seattle (SEA) as a thriving international gateway.
Alaska expanded the route to Reykjavík as its third nonstop transatlantic route because of its geographic location. Reykjavík is much closer to Seattle than to continental Europe. It is also the most convenient starting point to explore famous attractions in Iceland, including the Blue Lagoon, the Golden Circle, and Thingvellir National Park.
Alaska uses the Boeing 737-8 MAX to operate the route well without a large twin-aisle widebody. However, these specific planes have upgraded cabin comfort, including advanced LED mood lighting and ultra-fast, complimentary satellite Wi-Fi powered by Starlink and T-Mobile. Covering approximately 3,600 miles, the Seattle-to-Reykjavík route is one of the shortest routes between the U.S. West Coast and Europe.
Alaska Airlines Seattle (SEA) to Reykjavík (KEF) Flights Schedule
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Seattle to Reykjavík Approximate Flight Time: Around 7 hours 30 minutes
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Eastbound (SEA–KEF): Departs Seattle in the late afternoon/evening, getting passengers into Iceland just in time for a morning arrival (7 hours 30 mins).
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Westbound (KEF–SEA): Departs Keflavík in the late morning and returns to Seattle by mid-afternoon the same day (8 hours).
Other Details on SEA TO KEF flight
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Seattle to Reykjavík Flight Frequency - Daily 1nonstop flight (seasonal)
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Seattle to Reykjavík Round Trip Flight Fare- starts at $420
Why Choose Alaska Airlines for Your Trip to Europe!
With daily nonstop flights from Seattle to London, Rome, and Reykjavík, Alaska stands out as a competitive, value-driven carrier for many. The airline, with its new, improved fleet, offers a comfortable journey. Meeting the growing demand for both leisure and business travelers, Alaska Airlines has strategically used its hub as a nonstop gateway to discover the rich cultural, financial, and leisure hubs of Europe.
Frequently Asked Questions
Can you fly nonstop from Seattle to Rome?
Yes. Alaska Airlines now serves nonstop flights from Seattle to Rome with a daily 1 flight frequency.
Is there a direct flight from Seattle to Europe?
Yes. You can book non-stop flights to European cities like Reykjavík, London, or Rome from Seattle via Alaska Airlines.
How long is the flight from Seattle to London?
A nonstop flight from Seattle to London takes around 9 hours 30 minutes.
How many hours is the time difference between Seattle and Iceland?
Iceland is always 7 hours ahead of Seattle during the summer and 8 hours ahead in the winter.
What's the best airline to fly to Iceland?
Alaska Airlines, with its spacious Boeing 737-8 MAX, offers a reliable flight from Seattle to Reykjavík.
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