Delta Air Lines is progressively modernizing its widebody fleet. Incoming deliveries will see the Airbus A350-1000 and Boeing 787-10 join its ranks over the coming years. But with these only expected to start arriving in the coming years, it will be some time before either can really begin to take on a significant role at the airline. Instead, Airbus A350-900 and Airbus A330-900neo models are picking up the slack as older aircraft are phased out in the meantime.

Namely, Delta is in the midst of the complex process of retiring its 767s. To this day a significant part of the carrier’s long-haul fleet, the 767 has historically been the backbone of its transatlantic operations. So with these aging aircraft increasingly in need of replacement, what is filling in today?

The Boeing 767 At Four Decades Old

Credit: Delta Air Lines

Having entered commercial service with United Airlines in 1982, the 767 family has been serving passengers for over four decades. Delta got its hands on the initial Boeing 767-200 variant that same year, being gifted it by current and former employees after a crowdfunding campaign. While an interesting story in itself, The Spirit of Delta — as the model was christened — joining the airline’s ranks marked the start of a lengthy period of service for the family that was to last into the 2030s, as it turned out.

Come 1986, Delta became the first US-based operator of the Boeing 767-300, a stretched version of its predecessor that could fit an additional 60 passengers. It was purchased with high-demand “intermediate and long-range runs” in mind, per the Delta Flight Museum, and was soon to be complemented by longer-range variants. These included the extended-range Boeing 767-300ER and Boeing 767-400ER, which arrived in 1990 and 2000, respectively. Delta was the launch customer for the latter, and its addition meant every 767 variant was featured within its fleet.

Delta 767 variants and specifications:

Fast forward to August of this year, Delta continued to operate 21 Boeing 767-400ERs and 36 Boeing 767-300ERs, according to its website. Over the years, these came to serve an array of routes, from high-volume domestic connections, all the way to premium-heavy transoceanic and transcontinental services. Namely, each played a key part in linking North America and Europe — a role they remain in to this day.

Delta’s 767s Showing Their Age

Credit: Delta Air Lines

Naturally, after an impressive stint, Delta’s 767s are increasingly showing their age. Its 767-200s were fully retired by 2006, with the 767-300s then falling to the same fate at the airline come 2019. Those 767-300ERs and 767-400ERs still there are by no means young.

Based on Delta’s latest quarterly results covering the three months to the end of June, these are approaching or exceeding the age at which many airlines begin considering retiring such widebodies. Specifically, Delta’s 767-300ERs averaged 29.5 years old, while its 767-400ERs were slightly younger at a mean age of 25.5.

Delta mainline fleet as of the last quarterly report covering three months to June 30:

It is no surprise, therefore, that the process of phasing these older models out in favor of newer and more fuel-efficient alternatives is actually well underway. Unfortunately for Delta, though, that has been somewhat more complex than replacing the family like-for-like. Instead, several models have been used to fill the gap so far, with more set to do so over time.

Delta’s Already-Large Airbus A330 Fleet

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Delta already operates a large Airbus A330 fleet, and it is this portfolio that has really opened the door for its oldest 767s to be decommissioned thus far. As of late July, these numbered 81 aircraft, ranging from older Airbus A330-200 variants to Airbus A330-300s and the latest Airbus A330-900neo, based on the latest figures available from Delta.

The new engine option models accounted for 39 and counting of these. Some 31 A330-300s and 11 A330-200s made up the remainder. Again, though, many of these were getting on in terms of age. Delta’s A330-200s averaged 21.2 years old come late June, for instance, with its A330-300s at 17.4. Those A330-900neos among its ranks — themselves the latest variants to come out of the family and for which Delta still has outstanding orders — averaged 3.5, making them a more viable long-term solution.

That is not the only benefit they offer, though. Hosting 281 seats across four classes and boasting a range of 6,995 miles (11,257 km), the A330-900neo is not too dissimilar to Delta’s 767-400ERs in terms of capacity, while offering more flexibility in terms of routes. Add in a roughly 25% improvement in fuel burn, and that makes existing A330-900neos ideal for absorbing medium- to long-haul demand in the years ahead, albeit as other modern models arrive.

Airbus’ Latest A350 Also Increasingly Joining Delta’s Ranks

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Indeed, Delta is currently in the process of bolstering its widebody fleet with not only the A330-900neo, but also the Airbus A350. Firm orders were in place for 16 A330-900neos, alongside 18 A350-900s as of the end of June. Such A350-900 orders would ultimately buoy a 41-aircraft-strong portfolio it had already built.

Delta operates its existing A350-900s in two four-class configurations: Either with 306 or 275 seats, leaving respective ranges of 7,275 miles (11,708 km) or 8,000 miles (12,874 km). As such, these are suitable substitutes for Delta’s longest flights, given the A350-900 is able to trump both the range and efficiency of not only the 767, but also the A330, when flying further afield.

Delta widebody commitments and options as of last quarterly report covering three months to June 30:

Delta has not stopped there, though. The airline also holds firm orders for 20 Airbus A350-1000s, as well as options for a further 10, due to start arriving in 2027. Once again, these will be fitted with four classes. They will also feature updated Delta One Suites as part of a wider move towards increasingly premium-heavy options. As Delta’s latest flagship, the A350 has already allowed Delta to move on from the Boeing 777, retired during the pandemic, and will continue to form a part of its modernization efforts going forward.

Delta Left With Ample Choice For Boeing 767 Replacements

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So in terms of the 767, multiple aircraft are there for Delta to replace the aging fleet. Where it already has numerous A330s at hand, growing numbers of A350s being delivered in the coming years will pave the way for these to slip into routes currently covered by older 767s. In fact, this system whereby factory-fresh models arrive and push slightly older jets onto routes previously covered by the oldest models is well underway.

As it stands, Delta is aiming to take its 767-300ERs off long-haul international flights by 2028, ahead of fully retiring the fleet come 2030. In their place, 767-400ERs and A330-200s will be used to pick up the slack before newer aircraft come in to take on established schedules, allowing these to be filtered down to cover connections to newer destinations, say.

Of Delta’s 767s, therefore, it will be the 767-300ERs to go first, ahead of the 767-400ERs and the fleet’s ultimate retirement in the 2030s. Delta already has its hands on aircraft capable of fitting a similar profile, and that can be used to eventually replace the oldest models. It is another new arrival, however, that will fully allow its 767s to be taken out of service once and for all.

Boeing 787-10 The Final Piece In Delta’s 767 Puzzle

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Where the A330 has offered an intermediate solution, aided by ever-increasing numbers of A350s, it is the Boeing 787‘s introduction that should see the 767 finally ditched by Delta. As it stands, Delta has firm orders for 30 787-10s, alongside options for a further 30 if need be. Expectations are for these to start arriving from 2031, paving the way for the slightly younger 767-400ERs to begin being dropped as they start to exceed 30 years old on average.

Like Delta’s 767-400ERs, these are slated to incorporate four fare classes, including the new Delta One Suites, alongside Delta Premium Select, Delta Comfort, and Delta Main. In other words, that means modern business, premium economy, extra-legroom economy, and standard economy seating, in lieu of the traditional three-class configurations that are increasingly being dropped across the industry. Importantly, as Delta flags itself, these will pick up high-demand transatlantic and South American routes upon entry into service, fitting nicely into the role that the 767-400ER plays today.