If you've been sitting on a stash of United miles and eyeing a summer trip to London, this is a reasonable time to book. Economy award seats from Los Angeles (LAX) to London Heathrow (LHR) are available on August 4, 2026, for 40,000 MileagePlus miles plus $6 in taxes.
This rate comes in noticeably below the typical 60,000 miles United often charges for transatlantic economy awards. A 20,000-mile savings per ticket adds up quickly when you're booking for a family of four.
Availability appears strong right now, with plenty of seats showing at this price point. That said, award space to London in peak summer travel season tends to tighten as departure dates approach, so booking sooner rather than later is a reasonable move if your plans are flexible.
One practical note: United's award pricing is dynamic, meaning the same route can fluctuate day to day. If you see this rate and your dates work, it's worth locking in now. You can always cancel United awards for free if plans change.
How to book
Search and book directly through United's award search tool: https://www.united.com/en/us/book-flight/united-awards/search