List of current discounts on the Airport Express

Free travel for children (aged 3-11) and half-price travel for seniors (aged 65+)

From 16 December 2022 to 29 January 2023, Child Octopus card holders enjoy free journeys, while Elder Octopus / JoyYou Card holders enjoy a 50% discount on the Octopus fare. Details available on the MTR website.

Up to 40% off single and return tickets

When purchased in advance online at kkday (https://www.kkday.com/en/product/2425) and you will get a e-redemption voucher QR Code 1-2 hours later, or...
When purchased online from Klook (https://www.klook.com/activity/71-ai...ess-hong-kong/). After payment, you will immediately receive a confirmation email and e-redemption voucher (which is valid for 1 month from the order date), and can use it immediately (as of May 2019)
Hong Kong, Kowloon and Tsing Yi station tickets are available at a discount of around 40% off.

Alternatively, if you pay with an HSBC credit card and the total order amount is at least USD50, you will receive an additional USD5 discount by entering the promo code HSBC18US5 (first order only). For details, see https://www.homeandaway.hsbc.com/1/2...looktravel/all

Note: if you purchase multiple one-way tickets in a single transaction on Klook, you will only be issued a single voucher. If you exchange that voucher, you will receive multiple tickets, valid on the day of exchange only.

If you want to purchase multiple tickets for use on different days (say several different trips) you have to buy single one-way tickets in separate Klook transactions, receive several separate vouchers, and exchange those vouchers on your respective travel dates.

30% off single and return tickets

Use promotion code mtronline when buying a single or return ticket on the MTR website or MTR mobile app between 16 December 2019 and 5 January 2020. Tickets are valid for 92 days from the date of purchase. For details, see http://www.mtr.com.hk/en/customer/main/ael_winter.html

Group discount (2, 3 or 4 people travelling together)

Discount available on a single journey fare to/from the airport: http://www.mtr.com.hk/en/customer/ti..._4persons.html

50% off an Airport Express single journey to the airport

If using an Octopus card, a 50% discount is available on a single journey fare to the airport if taking the taxi (taxi fare of HKD60 or more) to Kowloon or Tsing Yi station (but not Hong Kong station): http://www.mtr.com.hk/en/customer/tickets/ael_taxi.html

Free connection on the MTR

http://www.mtr.com.hk/en/customer/se...nnections.html

30% off single and return tickets

When purchased from Hong Thai travel agency either online (http://www.hongthai.com/tc/Promotion...Promotion.html) or in person at a branch office (list of addresses: http://www.hongthai.com/tc/templates/BranchListAll.html).

If purchasing online, the "confirmation note" (which you must print out and show at the Airport Express station ticket counter to get your ticket) will be e-mailed to you 12-24 hours after you make your purchase on the Hong Thai website. The "confirmation note" is valid for 60 days from the order date. Visa, MasterCard, UnionPay and American Express are accepted payment methods for online orders.

If purchasing in person at a branch office, only cash/EPS is accepted. You will receive a paper voucher valid until 31 December 2018 which must be exchanged for a ticket at the Airport Express station ticket counter.

Confirmation Note is redeemed at Airport Express Customer Service Centre at Tsing Yi/Kowloon/Hong Kong stations; not HKIA station. When flying into HKIA, head directly to Airport Express train. Do not stop at HKIA Airport Express Customer Service Centre. Once you arrive at Tsing Yi/Kowloon/Hong Kong, redeem at Customer Service Centre for ticket to exit the turnstile.

(Old info that has not been updated/verified since Jul 2018 below)