This award availability is for travel on August 12, 2026, departing San Francisco International Airport (SFO) and arriving at Tokyo Narita (NRT). At 110,000 miles, you're saving approximately 30,000 miles compared to the more common 140,000-mile pricing United typically charges for business class awards to Japan.
The taxes and fees are minimal at just $6, which is standard for United metal flights originating in the U.S. This makes the out-of-pocket cost essentially negligible beyond the miles themselves.
The catch here is availability: there's only one seat showing. That limits this deal to solo travelers or those willing to split up cabin assignments with a travel companion. If you're planning a family trip, this particular date likely won't work unless you're comfortable booking additional seats in economy.
A practical note: August is peak summer travel season to Japan, so finding any business class saver availability is notable. If your dates are flexible, it's worth searching surrounding days to see if additional seats open up closer to departure.
How to book
Search and book directly through United at united.com/en/us/book-flight/united-awards/search. Log into your MileagePlus account, select "Book with miles," and enter your travel details to confirm availability.