If you've been sitting on a United MileagePlus balance and eyeing a spring trip to London, this is a solid opportunity. Award seats from Los Angeles (LAX) to London Heathrow (LHR) are available for 40,000 miles in economy, with the bonus of remarkably low taxes at just $6.
This rate represents a meaningful discount from the typical 60,000-mile price tag you'd usually see for transatlantic economy awards on this route. With plenty of availability showing for April 2, 2026, families or groups should have a reasonable shot at booking multiple seats together.
One practical note: London-originating awards often carry significantly higher taxes and fees due to UK Air Passenger Duty. If your dates are flexible and you're planning a round trip, consider booking one-way awards in each direction and starting your journey from the US side to keep costs down.
How to book
Search for award availability and book directly through United at united.com.