United takes delivery of first premium Airbus A321neo Coastliner for luxury transcontinental flights

United Airlines has taken delivery of its first Airbus A321neo in the new Coastliner configuration, taking a step closer to launching its premium-focused aircraft on transcontinental routes.

With 20 lie-flat Polaris business class seats, a separate Premium Plus cabin and business class lounge access, the Coastliner is designed to bring a widebody experience to narrowbody flights between Newark and United’s West Coast hubs in Los Angeles and San Francisco.

The aircraft forms part of United’s wider strategy to attract customers with more premium seating and upgraded onboard amenities, extending features associated with international travel to its coast-to-coast services.

First United Coastliner A321neo expected to enter service in 2027

United announced the arrival in a post on X on November 5, drawing attention to the aircraft’s custom striped livery.

“Planespotters, we made our newest addition to the fleet that much easier for you,” the carrier said.

“Look up at our very first Coastliner A321neo, and look inside for: Lie-flat United Polaris business class seats with all-aisle access [and] United Premium Plus with a retractable divider.”

Airbus also confirmed the delivery on November 6. The aircraft is expected to enter commercial service in early 2027, after delivery delays pushed back an introduction originally scheduled for summer 2026.

United first unveiled the Coastliner at an event in March 2026, saying it would provide a widebody experience onboard a narrowbody aircraft deployed on transcontinental services connecting the East and West coasts of the US.

The Coastliners will have a specially designed livery and fly exclusively between Newark and the airline’s hubs in San Francisco and Los Angeles.

The livery pays “homage to the coastal destinations it serves” and features bands of blue painted around the back third of the fuselage, while United’s name is painted on the aircraft belly.

Lie-flat Polaris seats bring long-haul comforts to transcontinental flights

United says the Coastliner has been custom-designed to give transcontinental customers a better onboard experience.

The interior is “all-new from nose-to-tail”, with 20 direct-aisle-access lie-flat seats in Polaris, 12 Premium Plus seats and 129 economy seats, giving the aircraft a total capacity of 161 passengers.

The configuration introduces United Premium Plus to the airline’s domestic narrowbody service, giving customers an option between business class and economy.

A new era of premium travel is taking shape! We’re proud to deliver the Coastliner #A321neo to @United Airlines, which brings together next-generation aircraft technology, enhanced passenger comfort, and an elevated onboard experience. We look forward to seeing this aircraft take to the skies!

— Airbus (@Airbus) November 6, 2026

Passengers flying in business class will have access to similar amenities to those offered on United’s long-haul flights, including Saks Fifth Avenue bedding, amenity kits and premium headphones.

They will also get access to United Polaris lounges, extending another part of the airline’s international premium experience to these domestic flights.

Economy passengers will have access to a self-service snack bar at the rear of the aircraft, where they can collect snacks and non-alcoholic drinks during the flight.

Coastliner supports United’s wider premium fleet strategy

The Coastliner is one of two new Airbus narrowbody configurations central to United’s premium expansion, alongside the longer-range A321XLR.

While the Coastliner will focus on transcontinental services, United plans to use the A321XLR to replace Boeing 757s on routes to smaller cities in Europe and South America.

In March, United said it expected to receive 40 A321neo Coastliners and 28 A321XLRs by April 2028, from planned fleets of 50 aircraft each. Those projections preceded the Coastliner’s delayed introduction.

The combined 100-aircraft programme is intended to replace 40 older Boeing 757s while expanding the airline’s fleet and premium seating capacity.

For transcontinental passengers, the Coastliner’s arrival brings United closer to offering a more consistent long-haul-style experience on flights between its East and West Coast hubs — from the lounge before departure to a lie-flat seat onboard.