Airdatalink offers a total of 24 data‑only plans for travelers heading to Japan, divided evenly between single‑country and multi‑country options. Eleven single‑country plans provide data solely for use within Japan, while eleven multi‑country plans can be used across a range of destinations that include Japan.
The single‑country plans typically feature a fixed data cap that remains constant regardless of how many days you stay, whereas the multi‑country plans often come with daily data caps that reset each day, offering more flexibility for frequent travelers.
Across all plans the price range is approximately $4.86 to $50.27 and the data cap ranges from 3 GB to 50 GB with validity periods between 15 and 30 days. Many of the plans include options for tethering and allow reduced speed at 128 kbps or 200 kbps.