United MileagePlus: Economy to London for 40,000 Miles (April 2026)

United is offering economy award seats from Los Angeles to London for 40,000 miles plus just $6 in taxes, which is about a third less than what you'd typically pay for this route.

This is a solid option for families planning a spring trip to the UK. At 40,000 miles per person in economy, you're looking at a 33% discount compared to the typical 60,000-mile rate United usually charges for transatlantic flights in this cabin. The low $6 tax makes this particularly appealing—London awards often come with hefty carrier surcharges, but not here.

Availability appears wide open for April 21, 2026, which gives you plenty of time to plan around school schedules or coordinate with travel companions. If you're booking for a family of four, you're saving 80,000 miles compared to standard pricing—that's essentially two free tickets worth of value.

One practical tip: United award pricing can fluctuate without notice, so if this fits your plans, book sooner rather than later. You can always cancel a United award ticket and redeposit the miles if your plans change, though a small fee may apply depending on your MileagePlus status.

How to book

Search for award availability and book directly through United at united.com/en/us/book-flight/united-awards/search.