Hanoi eSIM

在Hanoi，你會連上 Viettel 或 Vinaphone 之中在你所在位置表現較好的那一個。全國的中位速度是 56 Mbps。你的網路在落地那一刻就開始運作，比你走到入境大廳還早。

涵蓋Hanoi的方案

越南的數據方案
流量	有效期	每 GB 價格	價格
1 GB	永不過期	$199.00	$199.00
3 GB	永不過期	$106.33	$319.00
5 GB多數旅客	永不過期	$87.80	$439.00
10 GB	永不過期	$67.90	$679.00
20 GB	永不過期	$55.95	$1,119.00

只接一家電信商的業者，做不到這個切換。

機場: HAN / VVNB
抵達時的 Wi-Fi: 航廈有免費 Wi-FiThe airport operator's own site lists "Free internet, Wifi" among passenger services; Terminal 1 handles domestic flights and Terminal 2 all international flights.
抵達時的 SIM 卡: 航廈設有 SIM 卡櫃檯或販賣機Wikivoyage states prepaid SIM cards for tourists are readily available in the arrivals hall. Under Vietnamese law (Decree 49/2017/ND-CP) a passport must be presented to register any SIM.

Hanoi Metro 共 2 條路線。 2021 年通車。營運單位未公布隧道是否有訊號，我們也不做斷言。

Hanoi Metro does not reach Noi Bai airport. The two open lines are 2A Cat Linh-Ha Dong (opened 6 November 2021) and the Nhon-Cau Giay section of Line 3 (opened 8 August 2024); the airport link is a separate Line 2 (Noi Bai - Nam Thang Long) still under construction with an expected 2029 completion.
Both open Hanoi Metro sections are elevated - Line 2A's 13.1 km and 12 stations are entirely elevated, and the 8.5 km Nhon-Cau Giay stretch of Line 3 is elevated too - so there is no underground running yet; Line 3's four-station tunnel to Hanoi railway station is not due until around late 2027.
The practical airport link is express bus 86, which runs 06:20-22:00 every 25 minutes for 45,000 dong and takes about 45 minutes via the expressway to Long Bien bus station near the Old Quarter; a metered taxi covers roughly 27-28 km for 300,000-350,000 dong.
Noi Bai splits its traffic between Terminal 1 (domestic only) and Terminal 2 (all international flights, opened 4 January 2015), so international arrivals should expect to land at T2 and change terminals for onward domestic flights.