One of the most luxurious products in the sky is about to be lost to U.S. travelers.

The A380 will be pulled from the fifth-freedom flight between New York John F. Kennedy Airport and Germany.

The JFK flight will be operated by a Boeing plane. The airline added more A380 service between Singapore and Australia.

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Singapore's flagship Suites product will no longer fly on U.S. routes as a result of the equipment change.

The A380 is the only place in the world where Singapore's Suites product can be found. The suite has a sliding door, a chair, and a separate bed for each passenger. The bed can be turned into a double if the wall between the suites is lowered.

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There is a regular first class cabin on some of Singapore's aircraft. The extra wide seats have a partition that partially blocks the seat from the aisle but there is no closing door. The soft product, including Singapore's "Book the Cook" option that allows passengers in premium cabins to pre-order their meals, remains the same for non-Suites first class passengers.

The A380 is usually used on key routes from Singapore to destinations in Asia and Europe. Singapore also uses the double-decker on its JFK-Frankfurt service.

Sometimes it was possible to fly the Suites for just 86,000 Singapore Airlines KrisFlyer miles and $130 in taxes and fees on JFK-FRA.

There's still time to try Singapore's ultimate first class product out of the U.S., even though the change will take effect on May 15,23.