Lufthansa just got its first Airbus A350 fit with its upgraded Allegris cabin — which will soon include first class with a double bed. See inside.

Boeing's yet-to-be-certified 777-9 was expected to fly commercially by 2020, but yearslong production problems have delayed that at least five years to 2025.

Lufthansa has shifted Allegris to the rival A350 amid the delays, the first spending weeks at the Airbus factory in Toulouse, France before being delivered to Lufthansa on Saturday, Ritter said on LinkedIn.

Lufthansa plans to eventually fit the cabin onto more than 80 future aircraft, including Boeing 787-9s, the 777X, and more A350s.

The Boeing 747-8 double-decker fleet, which has notoriously dated premium cabins, also will see a retrofit, the airline has said.

Lufthansa has postponed the deployment of Allegris first class to the fourth quarter of 2024.

According to the German media outlet Travel-Dealz, Lufthansa told reporters in December that it would install extra economy seats in lieu of first class on the initial A350s jets flying with Allegris while it waits on the cabin supplier.

Lufthansa said in a March 2023 press release that the ceiling-high walls, 40 square feet of space, and the fully closable door in first class convey the "feeling of privacy and individuality similar to a hotel room."

The cabin includes single suites and double suites, the latter is dubbed "Suite Plus" and is set to feature a wide couch that converts into a double bed big enough for two people.

Each suite is temperature controlled, with passengers having the option to choose to cool or heat their individual cabins.

Moreover, a side table, storage, lighting, a minibar, and a control panel will be available to enhance traveler comfort inside the suite, the airline said.

Lufthansa has a notoriously mediocre business class, with many of its widebody planes — like the Boeing 747, the Airbus A330, and the Airbus A380 — sporting cabins in 2×2×2 layouts lacking direct-aisle access and privacy.

Following the trend of improving privacy in business class, Allegris will be on par with the likes of Qatar Airways, All Nippon Airways, and Delta Air Lines, which offer sliding doors in their premium cabins. Air India and British Airways have made similar upgrades.

The basic option is called "Classic" and has the expected bells and whistles of business class, like a lie-flat bed and direct aisle access.

Each also offers "generous" shoulder space to optimize sleep comfort, as well as the same heating and cooling system offered in first class, according to Lufthansa.

These include single and double suites in the first row, seats with extra work surfaces, high-privacy window seats with or without a baby bassinet, seats with extra-long beds, and a double berth in the last row.

The first-row suites are the only business class options with a door.

According to RTN, the Classic option will represent the base price of Allegris business class, with extra-amenity options costing more.

This unbundling approach means travelers who don't want a seat with more work space or a longer bed, for example, don't have to pay for things they don't need.

Premium economy is not completely new to the Lufthansa Group, with Switzerland-based SWISS, one of its brands, getting a similar cabin in the spring of 2022.

According to Lufthansa, its Allegris premium economy features more legroom and a legrest and can be "adjusted even further back than the current model."

The seat offers about 39 inches of pitch.

A large 15.6-inch television with Bluetooth connectivity, a USB port and universal power outlet, an adjustable headrest, leather armrests, and a cocktail table between the seats also will await flyers, the airline said.

Each regular economy seat has an adjustable headrest, a tablet holder, charging ports, and a Bluetooth-enabled television that measures 13.3 inches.

The 31-inch seat pitch is on par with competitors like British Airways and Finnair.

Like business class, the Allegris economy cabin has several variations that build upon a classic option.

As the name suggests, the legroom seats, reserved at the front of the cabin, offer passengers more leg space. The "free neighbor seat" option means a passenger's adjacent seat will be empty for the flight — essentially a 2-in-1 booking.

Lufthansa has taken on Boeing 787 and A350 airplanes from other airlines that have comparatively better business-class cabins than what is seen on its traditional widebody fleet.

These are interim cabins the company got from Hainan Airlines and Philippine Airlines, respectively, and are not the same as the Allegris seats coming in May, The Points Guy reported.

Still, similar to Allegris, they offer comforts like direct-aisle access and ample privacy.