This award availability on the LAX to London Heathrow route clocks in at 40,000 MileagePlus miles each way, with minimal taxes of just $6. For a transatlantic flight in peak summer season, that's a reasonable ask.
The typical rate for this route in economy usually runs around 60,000 miles, so you're looking at roughly 33% savings here. That adds up quickly if you're booking for a family of four.
Availability is wide open for July 13, 2026, which is notable given that mid-July tends to be one of the busiest periods for transatlantic travel. If your dates are flexible, it's worth checking nearby dates as well to see if similar pricing holds.
One practical tip: if you're booking multiple seats for a family, search for the full number of passengers at once. Award availability can be limited to a certain number of seats per flight, and searching individually might give you a false sense of what's actually bookable together.
How to book
Search and book directly through United at united.com/en/us/book-flight/united-awards/search.