United Airlines Built Its Airbus A321XLR With 20 Polaris Suites & Now It Can't Reach Italy

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United Airlines is gearing up to receive the first of its 50-strong order for Airbus A321XLRs that it ordered in 2019. These are being assigned to thinner transatlantic routes and are heavily premium-configured. However, while United has announced flights to Ireland, France, the Netherlands, and Spain, it seems it assesses Italy is a bit too far for the aircraft, despite Airbus' advertising material suggesting it should be within reach.

Paradoxically, by cutting out passengers and making the aircraft premium-heavy, United may have decreased the aircraft's range, but this is unclear without available data. It is also possible United is pinning the blame on Airbus when its own eight-hour requirements for crew rest could be a factor. At the same time, Airbus does not appear to have adjusted its range estimate after a reported redesign weight penalty may have reduced its range by around 4%.

United About To Launch A321XLR Flights

In August, Reuters reported that United Airlines said it expects to receive enough Airbus A321XLR deliveries to support its European expansion next summer. United is planning to use the narrowbody, extended-range A321XLR to push into smaller markets. Its 2027 plans include five new European routes, including Luxembourg, Ibiza, ​and Toulouse.

These new routes are part of United's biggest international expansion in its history, with service to ten new European and Asian cities. United's Patrick Quayle has acknowledged it has experienced a "few teething issues" with the A321XLR program, but says that it will have enough of the aircraft in service to fly the planned routes.

He told reporters that "we feel confident that we will have the number of aircraft needed in order to operate the schedule." Airbus has had some production and supply-chain issues in delivering the jets. United ordered the A321XLRs in 2019 and plans for them to enter international service in December 2026.

The first international route will be from Washington Dulles to Amsterdam and Dublin. As they enter service, United will be able to retire more of its aging Boeing 757 fleet. Compared with previous-generation aircraft, Airbus claims the A321XLR offers a 30% lower fuel burn per seat and a 50% lower noise footprint.

The Longest-Range Narrowbody Aircraft

The Airbus A321XLR is the longer-range subvariant of the popular Airbus A321neo and is allowing Airbus to fill much of the gap left by the cancelation of the Boeing 757 and the lack of a mid-sized airplane replacement. It is able to serve many thin and medium-haul routes, including many trans-Atlantic routes. Airbus advertises the A321XLR has a range of up to 4,700 nautical miles.

Importantly, this is considerably further than the longest-range Boeing 737 MAX variant, which is the 737 MAX 7, which Boeing markets with a range of up to 3,800 nautical miles. The MAX 7 finally received its type certificate this year, and Boeing is now gearing up for deliveries. However, the MAX 7 is not a direct competitor to the A321XLR, even if it did have the same range.

The MAX 7 is the shortest member of its family with a maximum capacity of 172 seats, while the A321XLR is the stretched member of its family with a maximum capacity of 244 seats. Meanwhile, the retiring Boeing 757 has a range of up to 3,150 to 4,100 nautical miles, depending on the variant and mission.

However, advertised ranges are not the same as real-life ranges. For instance, Qantas flies its Boeing 787-9s from Perth to London at distances exceeding the previously advertized range, while United seems to have the opposite issue with the XLR.

United May Not Be Telling The Full Story

Patrick Quayle told Aviation Week that even though the A321XLR had been advertized to United as having the range to fly from New York to Italy, "it obviously cannot do that." He explained that Spain and France are "well within" the XLR's capabilities and are conservative choices.

However, the distance to Italy is somewhat further, pushing the aircraft closer to its operating margin. Airbus' advertised range is influenced by configuration. One interesting insight from Business Traveler is that United’s opening route plan favors Atlantic sectors of roughly eight hours or less, but the aircraft can support longer duty.

It quotes United’s Airbus A321XLR Captain Manno as saying that the two seats in the final Polaris row can be reserved for flight crew rest. He said that "in case our route exceeds eight hours, we have that capability for a three-crew operation." Airlines configure the aircraft differently, and it is unclear exactly what the calculations of United's premium-heavy 150-seat configuration are.

Without Airbus or United Airlines disclosing their assumptions and calculations, it is not possible to weigh in on the conversation. United has not publicly said how its layout, passenger and cargo payload, weather, routing factors, or fuel reserves factor into the Italy limitation. United is planning to assign its widebody Boeing 767-300ERs for its new Italian Newark–Catania and Newark–Olbia routes.

A321XLRs Can Serve The Route, With Qualifications

As stated, United and Airbus are likely working with different assumptions in their range calculations, but this doesn't mean Airbus is 'wrong' or being misleading. This is apparent as other airlines are using their A321XLRs on comparable routes. Quayle told The Air Current that the range originally presented by Airbus was "a lot further than what it is right now, as constructed and as built."

This highlights the difficulty in translating the manufacturer's headline range into the real world. From Newark to Italy's Milan Malpensa, the distance is around 3,485 nautical miles, and to Rome it's around 3,720 nautical miles. To Sicily's Catania, it's almost 4,000 nautical miles. All of these are well within Airbus' advertised 'up to 4,700 nautical mile range.'

Iberia was the launch customer for the A321XLR, and it has them flying from Madrid to Santo Domingo; a distance of around 3,620 nautical miles. These are configured with 182 seats. Another airline, La Compagnie, already flies the shorter-ranged A321LR on the Milan-to-Newark route, although it is configured with just 76 business class seats. TAP Air Portugal has an A321LR route from Lisbon to Brazil spanning 3,730 nautical miles.

A Closer Look At The Range

It's also worth noting that Airbus' range may be a little overstated compared with previous estimates. In 2023, Reuters reported Airbus was "grappling with a growing shortfall in the range of its upcoming A321XLR passenger jet after reaching an agreement with European regulators on design safeguards needed to achieve certification."

However, an agreement with EASA included the certification of a new fuel tank. This was expected to add up to (700 to 800 kg) in weight and trim around 200 nautical miles from its range. Still, even then, that would imply it would have a range of 4,500 nautical miles under the same assumptions.

Reuters also reported that the practical range was closer to 4,000 nautical miles in normal operations. However, this doesn't explain United's unwillingness to fly it on the nominally 3,485 NM route to Milan. It is possible United is being cautious as it introduces a new aircraft type.

There may be other factors or safety margins it's working with. Cirium notes that "the XLR’s appeal lies in giving airlines a lower-risk way to test, sustain or increase frequency on routes where demand is too thin for larger aircraft, while preserving sufficient cabin comfort to satisfy passengers if the product is configured carefully."

United's Premium-Heavy XLRs

United has opted for a premium-heavy configuration. Its A321XLRs will come with 20 Polaris business-class suites, 12 Premium Plus seats, 34 Economy Plus seats, and 84 economy seats, for a total of 150 seats. This is considerably less than the maximum 244 seats the type can have.

This is at the lower end for A321XLR configurations, although American Airlines is close at 155 seats, including 20 business class seats. Meanwhile, Air Canada is configuring theirs with 182 seats (14 business), Aer Lingus (as seen above) has 184 seats (16 business), and Qantas has 197–200 seats (20 recliner business seats). Counter-intuitively, premium-configured aircraft can have a reduced range.

These configurations reduce passenger payload, but increase seat weight and other cabin features like bars and rest facilities. They can also potentially increase the amount of cargo carried. Fewer passengers may allow United to carry more air freight. Air freight, which often includes electronics, auto parts, mail, and machinery, is typically heavier per unit of volume than passenger baggage.

Without having the figures, it is not possible to say how a typical premium-heavy United A321XLR compares with a high-density low-cost airline configuration. Still, from available data, in the real world, it seems the A321XLR may struggle to serve routes of 4,700 nautical miles. At the same time, it can, and its shorter-range cousin does serve the Newark-Milan route.