Singapore Airlines says these unique 6 seats always sell out on the world's longest flight - here's why

Onboard a Singapore Airlines Airbus A350-900ULR.Thomas Pallini/Insider

• Singapore Airlines currently operates the world's longest flight between New York and Singapore.
• The exclusive aircraft only features two cabins: premium economy class and business class.
• Only six seats in premium economy class have no seat neighbor, making them the most sought after.

Singapore Airlines is the world's undisputed ultra-long-haul leader with three of the top 10 longest flights in the world before the pandemic under its belt.

In the top spot is the newly-launched Singapore-New York City route launched by the airline amid the pandemic in November 2020. It's currently the only non-stop link between the East Coast of the US and Singapore and benefits passengers and cargo alike.

The route was recently given an upgrade to Singapore's flagship premium aircraft, the Airbus A350-900ULR, or Ultra Long Range. Inside, the 161-seat jet only features business class and premium economy class, giving all onboard a premium experience.

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But although every seat is a premium seat, there are some seats that are better than others and sought after by the airline's most knowledgeable flyers. It is a near-19-hour journey, after all, and seat selection shouldn't be taken lightly.

Here's where you should sit when taking a flight on the Singapore Airlines Airbus A350-900ULR.