The free network is @Airport Free Wifi - Goldsun. Connect, and a login page opens in your browser: tap Connect to the Internet. The airport says it covers passenger seating areas in the domestic and international terminals, and that installation in the expanded part of Terminal 2 is still in progress.
Getting online at Noi Bai International Airport
Noi Bai International Airport (HAN) serves Hanoi. 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
- Hanoi
- Country
- Vietnam
- Time zone
- Asia/Ho_Chi_Minh
- Terminals
- Terminal 1 (domestic) and Terminal 2 (international)
Free Wi-Fi at HAN
Buying a SIM card after arrivals
Viettel, Vinaphone (VNPT) and MobiFone have official counters in the Terminal 2 (international) arrivals hall, just after customs. Viettel is at section B8 and Vinaphone at B9, on the ground floor near the arrivals exit. A tourist SIM typically costs 200,000 to 300,000 VND, about US$8 to 12 (checked October 2026). Bring your passport, which the counter uses to register the SIM.
eSIM plans for Vietnam
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 Vietnam
Vietnam's main mobile networks are Viettel, VinaPhone and MobiFone. 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.
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 Vietnam eSIM plan Check your phone supports eSIM
Tips for staying connected
- Coverage may be patchy in the newer part of Terminal 2, where the airport says Wi-Fi is still being installed.
- A 2026 travel guide says the login sometimes asks for a Vietnamese phone number. If it does, buy a SIM at the arrivals counters first.
Getting into Hanoi
The taxis, trains and private transfers from HAN into Hanoi are compared on our sister site: Noi Bai International Airport on airporttransportation.com
Noi Bai International Airport questions
What is the Wi-Fi network at Noi Bai airport?
Connect to @Airport Free Wifi - Goldsun and tap Connect to the Internet on the login page. It is free.
Where can I buy a SIM card at Hanoi airport?
In the Terminal 2 arrivals hall after customs: Viettel at section B8 and Vinaphone at B9, with MobiFone also present. Bring your passport.
How much does a SIM cost at Noi Bai?
Typically 200,000 to 300,000 VND, about US$8 to 12 (checked October 2026).