This award prices at 110,000 United miles compared to the roughly 140,000 miles you'd typically see for SFO-NRT in business class. With taxes and fees totaling just $6, this is a straightforward redemption without the carrier-imposed surcharges that can plague other programs.
The travel date is April 24, 2026, which falls during a lovely time to visit Japan—cherry blossom season will be winding down, but spring weather should still be pleasant and crowds somewhat thinner than peak sakura weeks. Only 4 seats are showing as available, so this works well for a couple or small family traveling together.
One thing to keep in mind: United's dynamic pricing means award rates fluctuate frequently. If you have the miles and your travel dates are flexible enough to work with April 24, it's worth locking this in before availability shifts. You can cancel United awards for free up to 30 days before departure if plans change.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search