We're seeing solid economy award availability on the Chicago to London route through United MileagePlus. The pricing sits at 40,000 miles one-way, with taxes and fees coming in at just $6. August 3, 2026 shows plenty of open seats.
This represents a meaningful discount from the typical 60,000-mile price tag United usually charges for transatlantic economy awards. That 33% savings could make a real difference for families booking multiple seats or travelers looking to stretch their miles further.
Availability appears strong right now, but summer dates to London tend to get snapped up as we get closer to travel season. If your dates are flexible, it's worth checking nearby dates as well to see if similar pricing extends across the calendar.
One practical tip: if you're booking for a family, search for the full number of passengers you need at once. United's award search will only show availability when enough seats exist for your entire party at that price.
How to book
Search and book directly through United's award search: https://www.united.com/en/us/book-flight/united-awards/search