Award space from SFO to NRT on August 4, 2026 is currently pricing at 110,000 United MileagePlus miles in business class, with just $21 in taxes and fees. This is a meaningful discount from the ~140,000 miles United typically charges for transpacific business class on this route.
Availability appears strong for this date, which is notable for peak summer travel to Japan. Families planning ahead for a 2026 trip may want to lock this in early, as award space to Tokyo during summer months tends to disappear quickly once school schedules are finalized.
The pricing here reflects United's dynamic award chart, where rates fluctuate based on demand. At 110,000 miles, you're getting solid value—especially compared to what you might see closer to departure or during high-demand booking windows.
One practical tip: if your plans are flexible, search a few days in either direction. Dynamic pricing means nearby dates could be higher or lower, and it's worth a quick check before committing.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search