Award availability has opened up for Premium Economy flights from Los Angeles (LAX) to London Heathrow (LHR) on April 5, 2026. At 50,000 United MileagePlus miles plus $6 in taxes, this represents a meaningful discount from the roughly 80,000 miles United typically charges for this cabin on transatlantic routes.
Premium Economy offers a comfortable middle ground for families crossing the Atlantic—more legroom, better meal service, and priority boarding compared to standard economy, without the steep mileage cost of business class. The low taxes on this routing make it particularly appealing, as some transatlantic awards can carry fees in the hundreds of dollars.
Availability appears to be wide open for this date, so you should have flexibility when selecting seats. That said, award space at this price point tends to disappear once it gets attention, so don't wait too long if your dates align.
One practical tip: if you're booking for a family, search for each passenger individually first to confirm there's enough award space before starting a multi-passenger booking. This helps avoid the frustration of getting partway through only to find limited seats.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search