Hi Alin, I used Google Flights to comparece prices and the values are basically the same from May to August.
If we have some bigger embedded/computer conference happening in Japan around that time, we could put NuttX Workshop just after that, this way people could participate in both events. Let us define the date soon to give people enough time to submit proposals and organize the flight. For the Internet, while visiting my company in Canada I discovered something very useful: install Airalo app and buy an eSIM with a low cost Internet plan. For Japan they have the lowest plan of 1GB data valid for 7 days for just U$ 4.50 or 10GB valid for 30 days for U$ 9.00. Best Regards, Alan