Delta Air Lines Schedules 2nd Daily Flight Between Seattle & London

��is betting big on its transatlantic network this upcoming fall, something relatively unique given traditional market trends.��, an aviation analytics company, Delta Air Lines has elected to launch a second daily nonstop service between its hub at Seattle/Tacoma International Airport (SEA) and London Heathrow Airport (LHR). This service will nearly double the capacity Delta offers between these two high-demand destinations.

Currently, Delta Air Lines operates just one nonstop flight between Seattle and London each day, operating a nightly service with the Airbus A330-900neo, one of the newest widebody models in the airline's fleet. Now, the airline will launch a second daily flight using the Airbus A330-200, an older-generation medium-capacity widebody, allowing Delta to offer many more premium seats on this route. Given that this flight connects two business hubs, it is unsurprising the carrier might be looking to double down on this service's premium capacity.

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A deeper look at the airline's decision to add this new service

Currently, Delta Air Lines operates a single nonstop flight between Seattle and London using the A330-900neo. The flight operates as Delta Air Lines Flight 260, and departs each night from Seattle at 20:25 before touching down the following afternoon in London at 14:15 after approximately nine hours and 50 minutes in the skies. In the return direction, Delta Air Lines Flight 21 also operates using the A330-900neo, and it departs each afternoon from Heathrow at 15:50 before touching down back in Seattle at 19:30 after a longer ten hours and 40 minutes in the skies.

As one can already see, Delta flights from Seattle to London are extremely easy for the airline to schedule, as they involve relatively limited time for aircraft to wait around, meaning that they offer an ideal level of aircraft utilization. Furthermore, the Airbus A330-900neo operated on this route features a 281-seat configuration which includes 29 lie-flat seats in the Delta One cabin, making this jet one of the most capable models in the skies today.

Delta has decided that its nonstop service to London warrants additional capacity, intriguingly in the winter months. While carriers typically add capacity to key transatlantic routes during the peak summer travel months, Delta is aiming to increase capacity on this route during the winter travel period, when demand has historically been lower for premium transatlantic service. Nonetheless, the carrier plans to launch this new nonstop flight on October 25, 2025.

Starting on that date, Delta Air Lines Flight 292, an Airbus A330-200 service, will take off every night from Seattle at 18:20 and is scheduled to touch down in London the following day at 11:00, after nine hours and 40 minutes. In the return direction, Delta Air Lines Flight 293 will depart from London at 12:20 PM and will touch down in Seattle at 4:00 PM local time, after ten hours and 40 minutes in the air.

So why is Delta choosing to add capacity on this route?

This decision will undoubtedly impact the capacity Delta is offering on this route.��A city pair that currently sees just 30 monthly flights from Delta will soon see 60 daily services. This will increase the total number of seats on offer from around 16,800 per month to over 30,000 per month (, so the airline is not exactly doubling its capacity).

However, the decision is certainly fascinating, as the off-season is an unlikely period for a carrier to increase capacity on core transatlantic routes. Likely,��an anticipated increase in business travel (particularly in the technology, financial, and communications sectors) is behind this move. This is also the second time in recent weeks that Delta has shirked adding summer transatlantic capacity,��.

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A deeper look at the airline's decision to add this new service

So why is Delta choosing to add capacity on this route?

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