If you've been sitting on a modest United MileagePlus balance and eyeing a spring trip to the UK, this is a reasonable time to book. Economy seats from Los Angeles (LAX) to London Heathrow (LHR) are pricing at 40,000 miles one-way on April 6, 2026, with plenty of availability showing. The $6 tax figure is notably low for transatlantic travel, making this an efficient use of your miles.
For context, economy awards on this route through United typically run around 60,000 miles, so you're looking at a savings of roughly 20,000 miles per ticket. For a family of four, that adds up to 80,000 miles saved—enough for another domestic round-trip.
One practical note: April in London means mild but unpredictable weather, so pack layers. It's also shoulder season, which generally means smaller crowds at major attractions and more reasonable hotel rates compared to summer months.
Award availability can shift without notice, so if this fits your plans, it's worth locking in sooner rather than later.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search