This is a solid opportunity for families planning a summer 2026 trip to Japan. The route from SFO to NRT in business class typically runs around 140,000 United miles, so this availability at 110,000 miles represents meaningful savings of about 30,000 miles per ticket.
Only 5 seats are showing for the August 17, 2026 departure, which could work well for a family of four or five traveling together. The negligible $6 in taxes makes this a true sweet spot for MileagePlus redemptions to Asia.
August is peak season for Japan travel, and business class award space during summer months tends to disappear quickly. If your dates are flexible, it may be worth searching nearby dates to see if additional availability exists.
One practical tip: if you don't have enough miles in your account right now, United does allow you to combine miles with a co-branded credit card holder or transfer Chase Ultimate Rewards points at a 1:1 ratio to top up your balance.
How to book
Search for award availability and book directly through United at: https://www.united.com/en/us/book-flight/united-awards/search