If you've been waiting for a good time to use United miles for a family trip to London, this is a reasonable opportunity. Economy awards from Los Angeles (LAX) to London Heathrow (LHR) are pricing at 40,000 miles one-way, with minimal taxes and fees of just $6. That's a notable discount from the ~60,000 miles United typically charges for this transatlantic route in economy.
Availability appears wide open around April 15, 2026, which lands during spring break season for many school districts. For families looking to book multiple seats, the current inventory should make it easier to get everyone on the same flight without piecing together separate itineraries.
The low tax amount is worth highlighting here. Unlike some European award tickets that come with hefty carrier surcharges, this routing keeps out-of-pocket costs minimal—helpful when you're booking for a household of three or four.
One practical tip: if you're flexible by a few days in either direction, search nearby dates to confirm the 40,000-mile rate holds. Award pricing on United can shift based on demand, so locking in sooner rather than later is wise if your travel dates are set.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search