This award availability on May 18, 2026 prices at 88,000 MileagePlus miles per person, compared to the roughly 140,000 miles United typically charges for business class between LAX and LHR. The cash portion is minimal at just $30 in taxes and fees, which is unusually low for a transatlantic flight departing from the U.S.
For families or couples planning a late-spring trip to London, this timing works well for catching the city before peak summer crowds arrive. Keep in mind that only 2 seats are currently available at this price, so this works best for solo travelers or pairs rather than larger groups.
One practical note: United award pricing is dynamic, so this rate could change at any time. If you have the miles and your travel dates are flexible enough to work with May 18, it's worth locking in sooner rather than waiting.
How to book
Search for award availability and book directly through United at united.com/en/us/book-flight/united-awards/search.