This fare prices out at 110,000 United MileagePlus miles for a one-way business class ticket from SFO to NRT on April 13, 2026. The taxes and fees are minimal at just $6, making this a clean redemption without the hefty surcharges you sometimes see on partner awards.
For context, business class awards on this transpacific route typically run around 140,000 miles through United's dynamic pricing. That puts this availability about 30,000 miles below the going rate—a meaningful savings if you've been eyeing a lie-flat seat to Japan.
One important caveat: there's only one seat showing as available. This won't work for a family trip, but it could be a solid option for a solo traveler or one parent heading out ahead of the group. Award space to Tokyo remains competitive, so if your dates are flexible, this is worth grabbing quickly.
A practical tip: if you're short on miles, United allows you to combine miles with cash or transfer points from Chase Ultimate Rewards at a 1:1 ratio. Just make sure the transfer posts before you try to book, as this seat likely won't last long.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search