ANA's check-in counter opens 3 hours before depart...

ANA's check-in counter opens 3 hours before departure. The same applies to the luggage deposit counter. If you want to get in the airport earlier than this, you can do "online check-in" with "only carry-on luggage". You can use "The Club at SJC" with Priority Pass (as of May 2018). In front of Gate 15, often very close to the departure gate for ANA flights. It is about 15 minutes by car from San Jose city, so it is quite close. Baggage inspection takes a considerable amount of time. When crowded, it's better to wait for an hour just in case. By the way (although there are no ANA customers alone), it is quite vacant because the peak is exceeded early in the morning 3 hours before the departure of ANA flight.