Carry-On Only for Hong Kong: Cathay, HK Express, and HKIA Tips

Hong Kong is one of the world's great travel hubs — and one of the most rewarding cities to navigate with only a carry-on. The MTR metro is fast and cheap, the streets are dense with places to eat and explore, and moving between Central, Kowloon, and the outlying islands is genuinely easy when you're not hauling checked luggage. Know your airline's limits before you fly.

Airline Carry-On Policies for Hong Kong Routes

Cathay normally allows one 56×36×23 cm main bag plus one 40×30×15 cm small item, sharing 7 kg in Economy/Premium Economy or 10 kg in Business. Qualifying Hong Kong/New Zealand journeys have a separate rule. Check the actual e-ticket and operating airline; inspection frequency is not established here.

HK Express Ultra Lite/Essential include one40×25×20 cm personal item. Lite/Max or a purchased main bag permit56×36×23 cm plus the personal item,7 kg combined. Essential includes checked baggage but no main cabin bag. Check the current fare and channel conditions before purchase.

Greater Bay Airlines has a separate cabin policy. Read its current official allowance and confirm the operating flight; do not infer HK Express fare inclusions.

Hong Kong International Airport (HKIA): What to Know

HKIA (HKG) on Lantau Island is a model of efficient airport design. Security processing is generally fast, and the airport is large but well-signposted. Allow 2 hours for international departures. Transit passengers connecting through HKIA benefit from one of Asia's best-designed connection flows — airside transit time can be under 45 minutes on some connections.

The Airport Express train to Hong Kong Station (Central/Kowloon) runs every 10 minutes and takes 24 minutes to reach Hong Kong Station. It's the fastest and most reliable way to reach the city. In-town check-in at Hong Kong Station is available from 1 hour before departure and lets you check in and drop bags hours before your flight — useful for a last half-day in the city.

What to Pack for Hong Kong

For summer (May–September):

• Light, breathable clothing — cotton or moisture-wicking synthetic
• A thin cardigan or long-sleeved layer for indoor air conditioning (malls, restaurants, and offices are very aggressively air-conditioned)
• Comfortable walking shoes with good grip for steep streets and hillside escalators

For winter (October–April):

• A mid-weight jacket or fleece — Hong Kong winters can feel cool, especially at altitude on the Peak or in Sai Kung
• Layers that work for cold indoor AC and mild outdoor temperatures

Smart outfit requirement: Hong Kong's Central district, Lan Kwai Fong, and especially rooftop bars in Tsim Sha Tsui have a door policy. One smart outfit — a collared shirt or a simple dress — goes a long way. Hong Kong dresses sharp; looking polished gets you into more places.

Footwear: Hills and MTR

Hong Kong has serious hills. The walk from Central MTR to the Mid-Levels or up to Victoria Peak involves steep gradients and steps. Shoe soles matter — bring trainers or walking shoes with decent grip, not smooth-soled dress shoes for daytime exploration. Flip-flops are fine on the islands (Lantau, Cheung Chau) but impractical in the dense urban core.

Octopus Card and Cash

Your Octopus card is the key to Hong Kong transit. Pick one up at the Airport Express counter or any MTR station on arrival. Load it with HKD 200–300 to start — it covers MTR, bus, green minibus, tram, and the Star Ferry, and can be used at 7-Eleven, Circle K, McDonald's, and many restaurants.

Keep HKD cash for street markets, dai pai dong open-air restaurants, and smaller local shops. ATMs in the HKIA arrivals hall (HSBC, Hang Seng) give competitive exchange rates. Avoid the currency exchange counters in arrivals — rates are notably worse.