You land at Hong Kong International Airport, clear immigration, and step into the arrivals hall. The first decision most newcomers face is not where to eat or which SIM card to buy. It is how to get from Chek Lap Kok to wherever you are sleeping tonight.
Two options dominate: the Airport Express train and the Cityflyer bus network. Both run frequently, both accept Octopus cards, and both get you into the city without the stress of negotiating a taxi fare. The difference comes down to speed, price, where you are headed, and how much luggage you are dragging behind you. We have taken both dozens of times and mapped out exactly when each one wins.
Airport Express vs Bus: The Quick Answer
If you are heading to Central, Admiralty, or anywhere along the MTR Island Line and you value speed, take the Airport Express. If you are going to Mong Kok, Jordan, Tsim Sha Tsui, or anywhere along Nathan Road and you would rather save money, take the A21 bus. That single rule of thumb covers roughly 80 percent of new arrivals.
For everyone else, the choice depends on your exact destination, the time of day, and how much you want to spend. The sections below break down every detail so you can decide before you even board the plane.
The Airport Express: Speed, Cost, and What You Get
The Airport Express is the MTR’s dedicated rail link between Hong Kong International Airport and the city. It runs on its own tracks, makes only three stops, and does not share carriages with daily commuters. The result is a fast, quiet, and predictable ride.
Stations and journey times
The train departs from the airport and stops at Tsing Yi (14 minutes), Kowloon Station (22 minutes), and Hong Kong Station (24 minutes). Trains run approximately every 10 minutes from 05:54 until 00:48.
Fares
| Destination | Single Journey Ticket | Octopus Card | Online (Klook/KKday) |
|---|---|---|---|
| Tsing Yi | HK$70 | HK$65 | ~HK$59 |
| Kowloon | HK$105 | HK$100 | ~HK$90 |
| Hong Kong | HK$115 | HK$110 | ~HK$99 |
Buying tickets through Klook or KKday in advance consistently saves 10 to 15 percent compared to the counter price. If you already have an Octopus card, just tap in and go.
Free shuttle buses to hotels
This is the perk that changes the calculation for many travellers. Airport Express ticket holders can board free shuttle buses from Hong Kong Station and Kowloon Station to more than 30 hotels across the city. Two routes (H1, H2) cover Hong Kong Island from Admiralty through Wan Chai to Causeway Bay. Five routes (K1 to K5) serve Kowloon, reaching hotels along Nathan Road, Tsim Sha Tsui, and beyond. Shuttles run every 20 minutes from 06:12 to 23:12. Show your Airport Express ticket, boarding pass, or valid Octopus at the bus stop and you are on.
For anyone whose hotel sits along one of these shuttle routes, the Airport Express effectively provides door-to-door service at no extra charge.
In-town check-in
If you are flying out with Cathay Pacific, Hong Kong Airlines, Qantas, or Singapore Airlines, you can drop your bags at Hong Kong Station or Kowloon Station up to 90 minutes before departure. That frees your final hours for last-minute shopping or one more bowl of wonton noodles without hauling a suitcase.
Onboard amenities
Carriages have dedicated luggage racks, free Wi-Fi, and charging ports at every seat. The ride is smooth enough to open a laptop.
Airport Buses: Routes, Fares, and Coverage
Where the Airport Express is fast and narrow (three stops), the Cityflyer bus network is slower and wide. Dozens of A-routes fan out from the airport to nearly every district in Hong Kong, dropping passengers at street-level bus stops rather than underground stations.
Key routes for new arrivals
| Route | Destination | Fare | Operating Hours |
|---|---|---|---|
| A11 | North Point (via Central, Wan Chai, Causeway Bay) | HK$41.9 | 05:35 to 00:30 |
| A21 | Hung Hom (via Mong Kok, Yau Ma Tei, Jordan, TST) | HK$34.6 | 05:30 to 24:00 |
| A22 | Lam Tin (via Kwun Tong, Kowloon East) | HK$40.8 | 05:20 to 00:10 |
| A29 | Tseung Kwan O (Po Lam) | HK$44.0 | 06:10 to 00:10 |
| A10 | Ap Lei Chau (Southern District) | varies | check Citybus |
| A12 | Siu Sai Wan (Eastern District) | varies | check Citybus |
The A21 is the workhorse route for Kowloon. It rolls straight down Nathan Road, which means you can hop off right outside your hotel if you are staying anywhere between Mong Kok and Tsim Sha Tsui. No transfers, no underground navigation with bags.
Octopus same-day return discount
Pay for your airport bus trip with an Octopus card and catch a Cityflyer back to the airport on the same day, and the return journey costs half fare. For a day-tripper or someone doing an airport run to pick up a friend, the A21 works out to roughly HK$52 for both legs.
What buses do better than trains
Buses drop you at street level, which matters if your accommodation is a five-minute walk from Nathan Road rather than a 15-minute MTR connection from Kowloon Station. Buses also cover districts the Airport Express cannot reach at all, including Causeway Bay, Wan Chai, Kwun Tong, Tseung Kwan O, and the Southern District.
Getting to Hong Kong Island
If your destination is Central, the Airport Express wins on speed. Twenty-four minutes from airport to Hong Kong Station, then either walk to the IFC complex and surrounding offices or take a free H1 or H2 shuttle bus to your hotel in Admiralty, Wan Chai, or Causeway Bay.
The bus alternative is the A11, which runs from the airport through Sheung Wan, Central, Admiralty, Wan Chai, Causeway Bay, and all the way to North Point. Journey time ranges from 50 to 75 minutes depending on traffic and where you get off. The fare is HK$41.9, roughly 62 percent cheaper than the Airport Express Octopus fare to Hong Kong Station.
The trade-off: you save about HK$68 but add 30 to 50 minutes of travel time. On a weekday evening during rush hour, the bus can take even longer. We recommend the Airport Express for first-time arrivals with heavy luggage, and the A11 for return trips when you already know the city and want to save.
Getting to Kowloon
This is where the decision gets interesting. The Airport Express stops at Kowloon Station, which sits inside the Elements shopping mall at the western tip of Tsim Sha Tsui. If your hotel is near there, at the ICC, or along the Austin Road corridor, the train is perfect.
But most budget and mid-range hotels in Kowloon cluster along Nathan Road between Mong Kok and Tsim Sha Tsui. Getting from Kowloon Station to, say, your hotel in Yau Ma Tei means transferring to the MTR Tung Chung Line or East Rail Line, or catching a free K-route shuttle bus. The shuttle covers many hotels but not all, and if you arrive after 23:12 the shuttles have stopped for the night.
The A21 bus, on the other hand, runs directly down Nathan Road. You ride for 40 to 60 minutes, watch the city lights appear through the windscreen, and step off at the bus stop closest to your door. No transfer, no underground stairs. The fare is HK$34.6, roughly a third of the Airport Express Octopus price to Kowloon Station.
We find the A21 to be the better choice for most Kowloon-bound travellers. The time difference is modest, the route is more convenient, and the price difference is significant.
Late-Night and Early-Morning Arrivals
The Airport Express runs its last train from the airport at 00:48. If your flight lands after midnight and you clear immigration by 01:00, the train is no longer an option.
Cityflyer operates overnight N-routes (night buses) that fill the gap:
| Route | Destination | Fare | Operating Hours |
|---|---|---|---|
| N11 | Central (Hong Kong-Macau Ferry Terminal) | HK$32.1 | 01:50 to 04:50 |
| N21 | Tsim Sha Tsui (Star Ferry Pier) | HK$23.8 | 00:20 to 04:40 |
The N21 is the go-to for late Kowloon arrivals. It follows a similar route to the A21 along Nathan Road, and the fare is even cheaper. The N11 covers the Hong Kong Island corridor.
For early-morning departures heading to the airport, the first Airport Express leaves Hong Kong Station at 05:54. If you need to catch a flight with check-in closing at 06:00, you will need a taxi or a pre-booked car.
Between the last Airport Express and the first N-route bus, a taxi from the airport to urban Kowloon costs roughly HK$280 to HK$350. To Central on Hong Kong Island, expect HK$350 to HK$400. Taxis are metered and do not charge a late-night surcharge.
The Budget Option: S1 Bus and MTR
Seasoned Hong Kong residents and frequent flyers know about this combination. Take the S1 bus from the airport to Tung Chung Station (roughly HK$3.3, about 10 minutes), then tap onto the MTR Tung Chung Line and ride into town. The total fare works out to approximately HK$20 to HK$25 depending on your destination, making it the cheapest way to reach the city by a wide margin.
The downsides are real: you need to haul your luggage off the bus, through Tung Chung Station, and onto a regular MTR train that may be crowded during peak hours. There are no dedicated luggage racks on the Tung Chung Line. If you are travelling with two large suitcases and a carry-on after a 12-hour flight, this route tests your patience.
We recommend the S1 combination for residents returning from short trips with a single carry-on, or for travellers heading to Tung Chung itself who do not need to go further into the city.
Which Should You Choose
The right option depends on your situation. Here is how we break it down.
Take the Airport Express if you are arriving for the first time with heavy luggage and your destination is Central, Admiralty, or along the free shuttle bus routes. Speed and convenience justify the premium, especially after a long flight. The in-town check-in on departure day is a genuine time-saver if your airline participates.
Take bus A21 if you are heading anywhere along Nathan Road in Kowloon, from Mong Kok to Tsim Sha Tsui. The route is direct, the fare is roughly a third of the Airport Express, and the journey time difference is modest. This is also our pick for travellers on a budget who do not mind a slightly longer ride.
Take bus A11 if you are heading to Wan Chai, Causeway Bay, or the eastern side of Hong Kong Island and want to save money over the Airport Express plus MTR transfer combination.
Take the N21 or N11 if you arrive after midnight. These night buses are your only public transport option until the Airport Express resumes at 05:54.
Take the S1 plus MTR if you are a light packer, a returning resident, or heading to Tung Chung.
Take a taxi if you are travelling as a group of three or four, splitting a HK$300 fare to roughly HK$75 per person, which is competitive with the Airport Express and faster than the bus.
For a broader overview of getting around once you are settled in Hong Kong, our complete guide to the MTR covers routes, fares, and Octopus card tips. And if you have just landed, our first 24 hours in Hong Kong guide walks through everything from getting an HKID to setting up your phone.
Frequently Asked Questions
How long does the Airport Express take from the airport to Central?
The Airport Express reaches Hong Kong Station in Central in 24 minutes. Trains depart every 10 minutes from 05:54 to 00:48.
Is the airport bus cheaper than the Airport Express?
Yes. The A21 to Kowloon costs HK$34.6 compared to HK$100 or more for the Airport Express to Kowloon Station. The A11 to Hong Kong Island costs HK$41.9 compared to HK$110 for the train.
Can I use an Octopus card on both the Airport Express and airport buses?
Yes. Both accept Octopus cards. Using Octopus on the Airport Express saves HK$5 compared to a single journey ticket. On Cityflyer buses, Octopus also enables the same-day return half-fare discount.
What is the cheapest way to get from Hong Kong airport to the city?
The S1 bus to Tung Chung followed by the MTR costs approximately HK$20 to HK$25 total. Among direct options, the A21 bus at HK$34.6 is the cheapest.
Are there buses from Hong Kong airport after midnight?
Yes. The N21 runs to Tsim Sha Tsui from 00:20 to 04:40, and the N11 runs to Central from 01:50 to 04:50.
Does the Airport Express have free Wi-Fi?
Yes. All Airport Express trains offer free Wi-Fi, charging ports, and dedicated luggage storage.
