The free network is #WiFi@Changi. Select it, open a browser, go to any website to reach the login page and tap the WiFi logo. There is no registration: no account, email or phone number. It covers public and transit areas in all terminals, including the arrival halls.
Getting online at Singapore Changi Airport
Singapore Changi Airport (SIN) serves Singapore. Here is how to get online from the moment you land: the free Wi-Fi, where SIM cards are sold, and the eSIM you can install before you fly.
- Serves
- Singapore
- Country
- Singapore
- Time zone
- Asia/Singapore
- Terminals
- Terminals 1, 2, 3 and 4
Free Wi-Fi at SIN
Buying a SIM card after arrivals
SIM cards from Singtel, StarHub and M1 are sold in every terminal. In Terminals 1 and 2, Changi Recommends has a counter in the Level 1 Arrival Hall; Cheers, 7-Eleven, money changers and StarHub also sell them, and Terminals 3 and 4 follow the same pattern. Prices run from S$12 to S$50: Singtel's S$12 card gives 100 GB of local data and 3 GB of roaming for 14 days (checked October 2026). Bring your passport to register the SIM. International cards are accepted; cash must be Singapore dollars.
eSIM plans for Singapore
Install one at home before you fly and you are online when the wheels touch down, with no queue at a SIM counter.
Mobile networks in Singapore
Singapore has four mobile networks: Singtel, StarHub, M1 and SIMBA. Singtel, StarHub and M1 switched off their 3G networks in 2024, so service runs on 4G and 5G. A travel eSIM connects to one of them as a roaming partner, which is why data roaming must be on for the eSIM line. The partner network can differ from plan to plan, so check the plan details, or ask us at support@esimlounge.com before you buy.
Fixed data
One allowance for the whole trip, used at your own pace.
Daily data
A fresh allowance every day, slower above it until the next day.
Unlimited data
No cap on data, with a fair-use speed limit after heavy daily use.
Also covered by Asia Pacific
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Asia Pacific
Also covered by Global (170 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (170 countries)
Also covered by Global (75 countries)
One eSIM that also works in the other countries of the bundle, for a trip that crosses borders.
See every country in Global (75 countries)
Compare every Singapore eSIM plan Check your phone supports eSIM
Getting into Singapore
The taxis, trains and private transfers from SIN into Singapore are compared on our sister site: Singapore Changi Airport on airporttransportation.com
Singapore Changi Airport questions
Do I need to register for Wi-Fi at Changi?
No. Connect to #WiFi@Changi, open any website and tap the WiFi logo. No email or phone number is asked.
Where can I buy a SIM card at Changi Airport?
At Changi Recommends in the Level 1 Arrival Hall, and at Cheers, 7-Eleven, money changers and StarHub in each terminal. Bring your passport.
How much is a tourist SIM in Singapore?
From S$12: Singtel's card gives 100 GB of local data and 3 GB of roaming for 14 days (checked October 2026).