This award availability on the Boston to London route prices at 88,000 MileagePlus miles per person, with just $33 in taxes and fees. The travel date is April 23, 2026, which lands nicely in spring shoulder season before the summer rush to Europe.
For context, business class awards on this route typically run around 140,000 miles through United. At 88,000 miles, you're looking at roughly 37% savings—a meaningful difference if you're working toward a family trip or trying to stretch a points balance.
Availability is limited to just 3 seats, so this works best for solo travelers or couples rather than larger groups. If you need more seats, it's worth checking adjacent dates to see if similar pricing opens up.
Practical tip: April weather in London can be unpredictable, so pack layers. This timing also puts you ahead of peak summer pricing for hotels and attractions.
How to book
Search for award availability and book directly through United at: https://www.united.com/en/us/book-flight/united-awards/search