Award space from SFO to NRT in business class is available for April 25, 2026, at 110,000 United MileagePlus miles. The route typically prices at around 140,000 miles for business class, so this represents a solid 30,000-mile savings per ticket. Availability appears strong, making this a good option for families who need to book multiple seats together.
The $6 tax and fee total is remarkably low for an international business class ticket, which is one of the advantages of booking through United's program for transpacific flights. You won't encounter the fuel surcharges that plague some other programs on premium cabin awards.
April is a particularly appealing time to visit Japan, as it falls during cherry blossom season. If you're planning a spring break trip or an extended family vacation, this timing works well and the business class seats make the 11-hour flight considerably more comfortable for both adults and kids.
One practical note: award pricing on United can fluctuate based on demand, so if you have the miles available and your dates are flexible enough to work with April 25, it's worth locking this in sooner rather than later.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search