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

United is showing solid award space from Chicago to London next summer at 40,000 miles in economy, about a third less than you'd typically pay for this route.

Chicago-based families planning a London trip for summer 2026 have a decent booking window right now. United MileagePlus is pricing economy awards from ORD to LHR at 40,000 miles plus just $6 in taxes for July 11, 2026, with plenty of seats currently showing as available.

This rate comes in about 33% below the typical 60,000-mile price point you'll often see for transatlantic economy awards on this route. That 20,000-mile savings per person adds up quickly when booking for a family of four.

The low tax figure is worth highlighting here. Unlike many European carriers that tack on significant surcharges, this routing keeps out-of-pocket costs minimal at $6 per ticket.

One practical note: July is peak summer travel season, so if this timing works for your family, consider booking soon. Award availability at saver rates tends to tighten as popular travel dates approach.

How to book

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