Why United Airlines Would Be Interested In The Boeing NMA

United Airlines, with its fleet of aging 757s and 767s, is a top contender to place a big order for Boeing’s NMA, also known as the 797. Why would this aircraft be such a good fit for the US airline, and will Boeing be in time to snag the order? Let’s take a look.

United 767
Why would United Airlines want the 797? Photo: Curimedia | P H O T O G R A P H Y via Wikimedia

Yesterday we talked about how good the 797 could be if and when it eventually gets built. Clearly, if Boeing fulfill all the promises and goals of this new midsize airplane (NMA), it could revolutionize air travel around the world.

Of course, in order for an aircraft to be a success, Boeing needs a buyer, or ideally many buyers. Are they out there? We think they are, and we reckon one of the first airlines queuing up to sign up for the 797 will be United Airlines themselves.


Here’s why United would love to order the Boeing 797.


An aging fleet

United Airlines has a bit of a fleet problem. At the small end of its operations, it’s got an order in for a number of the Boeing 737 MAX family to give its fleet some young, fresh metal. At the larger end, a growing fleet of young Dreamliners is satisfying its long haul capabilities. But what’s in the middle?

Stuck in the mid-size, mid-range bracket of United’s fleet is an aging population of Boeing 757s and 767s. Of the 757s, the airline flies 76, with an average age of 21.7 years between them. However, some of the oldest in the flotilla are approaching 30 years of age, with one, N502UA, already over 30.

United 767
United’s oldest 767, N502UA, has just celebrated its 30th birthday. Photo: InSapphoWeTrust via Flickr

In terms of 767s, United has 54 in operation, mostly of the -300 variant with 16 or so of the -400. Altogether, the 767s average 22.1 years old, with the -300s markedly older than the -400s. Although none are over the age of 30 yet, but several are well over 27.

United are not against older aircraft; not at all. In fact, the carrier has recently been noted as working towards purchasing more used A319s for short-haul ops, as they see an opportunity to get a good plane for less money. However, there’s an old plane, and then there’s an old plane.

Looking at the list of incoming used A319s, most date from around 2005 and 2006, clearly back on the market after coming to the end of their initial leasing period. At 14 or so years old, these are no factory-fresh aircraft, but next to the 757s and 767s, they look like spring chickens.

United 757
Despite being good old workhorses, aircraft of this age require quite some maintenance. Photo: Emirates EK27 via Wikimedia

Aircraft approaching 30 years old will require more maintenance, will be more susceptible to problems and will inevitably lead to more downtime, an issue which airlines are keen to avoid. To cut a long story short, these planes are old, and United are keen to put in place a strategy for replacing them.

What will replace the 757s and 767s at United?

Some might say that the larger variants of the 737 MAX go some way to replacing the aging Boeing jets. However, while the MAX 10 can push 230 passengers in a single class configuration, its range becomes too short to be a true 757 replacement. The 767, of course, is even bigger again, and still trumps the largest of the MAX in terms of range.

United 767
Bigger range, bigger capacity, the 737 can’t match it. Photo: Aero Icarus via Flickr

What United needs is a middle-sized plane, seating around 250 or so passengers, which has enough range to deal with both transcontinental and transatlantic trips in an economical way. What would be even better would be if that were a twin aisle plane, to allow for faster boarding and disembarkation. And imagine if it had all the cool tech that the Dreamliner employs; low altitude pressurization, big windows, better bins… all that jazz.

We are, of course, effectively describing the proposed 797. Boeings promised forthcoming aircraft would successfully fill the boots of United’s 757s and 767s, allowing the airline to retire these aging birds and to avail of all the efficiency savings that come with a new aircraft.

Boeing 797
The 797 has the potential to tick all United’s boxes. Photo: Dj’s Aviation via Youtube

As and when the NMA is announced, I’d fully expect an order in the magnitude of 100 aircraft off the bat by United, probably with options for 100 more. And that’s before you get started with American or Delta. But will Boeing be ready in time?

How long can United wait for the 797?

The short answer is, not long. If the airline does not see sufficient movement in the 797 program in the near future, it is likely they’ll have to look elsewhere. While Airbus has not gone so far as to design an NMA of its own, it has purported to be able to fill this gap via a combination of the A321XLR and the baby A330, the -800.

Concept A321XLR in flight
The A321XLR isn’t quite the NMA solution, but it’s ready now. Photo: Airbus

With the waiting list for the Airbus planes growing longer by the day, United are understandably getting a bit twitchy. Back in July, Bloomberg reported that United had given Boeing a ‘prod’ for clarity on the NMA timeline. Boeing responded by saying that it had 1,000 people working on the design.

However, a launch date is still not forthcoming, although Boeing has said it will make a decision next year (2020) about whether to go ahead with the concept or not. But, as we all know, Boeing has a pretty full to-do list right now. Whether that has a bearing on the decision remains to be seen.

United previously said that it “has a little more time” to play with before a decision on their mid-size fleet has to be made. Hopefully Boeing jumps in the right direction to give their loyal US operators the plane they really need.


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the n502ua is a 757, not a 767!

Dominic Yeo

Actually… No. The simple reason is range.
The XLR lacks range to do SFO- Japan, Hawaii, IAD- Europe, aka the farthest routes that the 757s were originally on.
I read that United IS interested in the A338R proposed but want to wait until Boeing gives them something more concrete. The NMA is more paper than Boeing is letting on.

David C

Agreed. But Boeing is not in great financial shape right now due to the repercussions of the MAX tragedy. I would bet United is trying to hold out long enough to be the launch customer and thus secure the crazy price the airframers tend to give to the first North American carrier willing to take on the new aircraft. Still, Boeing needs to push technology pretty far forward if they want to secure lots of long term business for the new NMA. Can’t be a rehash of existing assembly methods in a new tube.


Anything hindering airbus from re-engineering of 757 and 767?

David C

The main thing hindering Airbus from re-engineering the 757 and 767 is that those airframes are a Boeing product.

Timothy Gaede



boing are not able to fulfil any promises or goals, that is pretty clear. What is also pretty clear is that United’s fleet is old now, how can they wait another 10 or 15 years for a new aircraft to be developed and produced? Simple answer is they can’t.

Paul Proctor

Boeing is a huge company with about 150,000 employees and thousands of engineers. Yes, it rightly is focusing on MAX problems, but that doesn’t mean work has stopped on 777X or ‘797’. I submit that Boeing is keeping progress on the 797 on the down-low, as announcing a new airplane now would seem insensitive to the MAX crash victims, and that the general press will characterize it as a 737 replacement. I predict that once MAX starts flying again, Boeing will provide a major update on 797, and its engineering and development will be quite advanced.

Erik K. Weseman

Given that United Airlines can’t wait forever for Boeing to decide whether to build the 797, Airbus should make United a deal on A321XLRs to start replacing its oldest 757s and maybe even design its own NMA to meet the airlines’ needs if Boeing won’t go ahead with its new aircraft.


Boeing should just build a 767 passenger variant put new leap engines on it, new fuel efficient and Call it a day no need to dump millions in the new design the 767 is a great plan.

john r Bamforth

A 767x would be an easier solution and they r still making it in freighter version. Also it was mentioned that airbus is proosing the a330-800 as an nma. Well thats exactly thecsame size as the787-8 which uniter already has decked out at around 230 seats. Really the 787-8 does fit the size for the nma. Perhaps boeing needs to simply discount it and perhaps strip it down a little and market it as a 787-7 and sell it forcthe price airlines are expecting to pay for the nma.