HK Express

If you are spotting in Hong Kong for the first time, you expect green Cathay Pacific widebodies. In between, though, smaller Airbus jets in bold purple constantly taxi to the runway: HK Express, the low-cost subsidiary of the Cathay Group. Behind the uniform look are four variants of the A320 family, an eventful history with Embraer jets and HNA livery and a network focused entirely on Asia. This page shows you how to classify HK Express cleanly and tell the variants apart.

HK Express at a glance

HK Express is the Cathay Group’s low-cost airline and is headquartered in Cathay House right at Hong Kong Airport. Officially it trades as Hong Kong Express Airways Limited. Since July 2019 it has belonged entirely to Cathay Pacific but remains a brand of its own, with its own code, its own livery and its own business model: direct flights at low base fares, extras for an additional charge, a uniform short-haul fleet.

The network is clearly regional. HK Express flies to destinations that can be reached from Hong Kong in a few hours: many cities in Japan, plus South Korea, Taiwan, Thailand, Vietnam, the Philippines, Malaysia and mainland China. The airline itself counts Tokyo, Taipei, Takamatsu and Bangkok among its most popular routes. There is no long-haul – within the group, the parent handles that.

There was an important change to airport operations in Hong Kong in 2026: according to HK Express, the airline moved into the newly built Terminal 2 at Chek Lap Kok on June 10, 2026. For spotters, that changes little on the runways, but it does at the parking positions and the paths around the terminals.

Codes and callsign

• IATA code UO: appears in the flight number, so on the ticket, departure board and in schedules.
• ICAO code HKE: appears in the air traffic control flight plan and on flight trackers.
• Callsign HONGKONG SHUTTLE: how the crew identifies itself on the radio.

The code UO gives no clue to the name. If you search for HK Express on a tracker, it is therefore best to filter by HKE. Within the group, the same logic helps: CPA stands for Cathay Pacific and Cathay Cargo, AHK for the freighter Air Hong Kong, HKE for HK Express.

From Hong Kong Express to HK Express: the history

The airline has changed its face several times in roughly twenty years. For spotters with archive photos, it is worth knowing the phases.

Period	Phase	Fleet and look
2004–2007	Founded as Hong Kong Express Airways in March 2004, flight operations from September 2005	Embraer E170, white fuselage with blue accents
2006–2013	Chinese HNA group takes a stake (from 2006), from 2008 also routes to Beijing and Shanghai	Boeing 737-800 (from 2007), HNA-style livery with a golden bauhinia
2013–2019	Conversion to a low-cost carrier, renamed HK Express, first budget flights on October 27, 2013	Airbus A320 family, purple-and-red livery with skyline on the tail
since 2019	Takeover by Cathay Pacific, completed in July 2019	Still a pure A320 family, new brand with “e” from 2023

The takeover by Cathay had a clear background: the parent wanted to be represented in the growing low-cost segment in Asia itself without diluting its own brand. According to reporting on the takeover, the purchase price was around 4.93 billion Hong Kong dollars. The switch also ended the membership in the low-cost alliance U-FLY, which came from the HNA sphere.

The years after were turbulent as well. During the pandemic, HK Express suspended flight operations completely several times in 2020 and only gradually ramped them up again from August 2020. In October 2020, Cathay also closed its regional subsidiary Cathay Dragon, whose network was then redistributed within the group. As early as November 2017, after canceled flights during Golden Week around the Chinese National Day, the Hong Kong aviation authority had temporarily barred the airline from adding new routes, flights or aircraft.

The basics of the budget airline model are explained in the piece How low-cost carriers work. You will find an overview of all the group’s brands at the Cathay Group.

The fleet: pure A320 family

Since the low-cost conversion, HK Express has flown exclusively aircraft of the Airbus A320 family. That keeps maintenance, crew training and planning simple – and still makes the airline interesting for spotters because four variants operate side by side. In mid-2026, the fleet comprised about 40 aircraft according to publicly available fleet overviews, with more A320neos and A321neos on order.

Type	Role in the fleet	Tracker code	Spotter note
Airbus A320	Oldest part of the fleet	A320	Smaller engines, shorter fuselage
Airbus A320neo	Modern short-haul	A20N	Large, round engines at A320 length
Airbus A321	Classic long version	A321	Long fuselage but compact engines
Airbus A321neo	Largest type in the fleet, still growing	A21N	Long fuselage with large neo engines

The A321neo is the type HK Express is betting on most for growth. The first aircraft joined the fleet in spring 2023. With over 230 seats, it is particularly suited to high-demand routes to Japan, Taiwan and Thailand, where the airline wants to offer as many seats per departure as possible at peak times. The manufacturer of all types is Airbus.

There are no widebody aircraft at HK Express. If you think you see a purple widebody in Hong Kong, it is a mix-up – widebody jets in the group fly for Cathay Pacific and the freighter Air Hong Kong.

A320, A321, ceo or neo? How to tell the variants apart

At HK Express, you have to answer two questions: is it an A320 or an A321? And does it belong to the old ceo or the new neo generation? With a bit of practice, you can see both on approach.

Important: sharklets at the wingtips are not a reliable neo feature, because many younger ceo aircraft carry them too. Rely on the engines instead. The details are explained in the pieces A320neo or ceo? and Reliably telling the A318, A319, A320 and A321 apart.

How to recognize HK Express

Since the 2023 rebrand, HK Express has gone for a pared-down, striking look: the former Hong Kong skyline on the tail is gone, replaced by a large, stylized “e.” You find the same motif on the winglets and on the underside of the fuselage – handy when an aircraft flies directly over you. At the same time, the advertising slogan changed from “Your Move” to “Gotta Go.”

Because the repaint does not happen overnight, you still see aircraft in the older livery: white fuselage with purple-and-red accents and the Hong Kong skyline on the tail. For your logbook, it is worth recording both variants separately – the older livery becomes rarer with every repaint. Also keep an eye out for possible advertising or special liveries – such one-offs are among the sought-after subjects at every airline.

For the registration, the Hong Kong system helps: aircraft from Hong Kong carry the prefix B- with a block of letters behind it, such as B-L… or B-K…. That sets them apart from the B- registrations of mainland China and Taiwan, which follow a different structure. How the system works exactly is explained in the piece on B- registrations.

Spotting HK Express

The easiest place to catch HK Express is the home airport. At Hong Kong Chek Lap Kok Airport, the fleet takes off and lands spread across the whole day, and the three-runway system with its clear east-west orientation makes planning comparatively manageable. Which places around the airport are worthwhile is described in the guide Plane spotting in Hong Kong.

Outside Hong Kong, Japan is the main hunting ground. Besides Tokyo and Osaka, HK Express flies to many smaller cities – Takamatsu, Fukuoka and Okinawa are part of the network. In Tokyo, the airline lands at Narita or Haneda depending on the schedule; at Tokyo Narita Airport, the hill Sakura no Yama is a popular place for approach photos. More chances come from Seoul Incheon and Bangkok Suvarnabhumi.

There you often meet HK Express alongside other Asian budget carriers like Peach Aviation, Tigerair Taiwan or Scoot. The comparison is worthwhile: many of these airlines also fly the A320 family, so the livery decides.

Common mix-ups

• Taking HK Express for Cathay Pacific – both belong to the same group, but HK Express flies independently with UO/HKE and purple livery.
• Confusing HK Express with Hong Kong Airlines – Hong Kong Airlines is a separate company with no connection to the Cathay Group.
• Assigning every purple A320 in Asia to HK Express – other low-cost airlines also use bold colors. The “e” on the tail and the code HKE make it clear.
• Taking sharklets as proof of a neo – only the engines reliably reveal the generation.
• Putting HK Express in oneworld – only the parent Cathay Pacific is an alliance member.
• Logging the old livery as a special livery – the purple-and-red skyline look was the standard until 2023.

Conclusion

HK Express is the Cathay Group’s purple answer to the Asian budget carriers. Behind the uniform look are four variants of the A320 family, two generations of livery and a history with Embraer jets, HNA looks and the conversion to a low-cost carrier. If you note down length, engines and registration, you turn a quick sighting at Chek Lap Kok or in Japan into a clean entry in your logbook.