If you're planning a family trip to London next summer, this is a worthwhile option to have on your radar. United MileagePlus is pricing economy awards from Boston (BOS) to London Heathrow (LHR) at 40,000 miles plus just $6 in taxes for travel on July 11, 2026. Availability appears to be wide open, which is helpful if you're booking for multiple travelers.
This rate compares favorably to the typical pricing for this route, which usually runs around 60,000 miles in economy. At 40,000 miles, you're saving roughly 20,000 miles per ticket—a meaningful difference when you're booking seats for the whole family.
One practical tip: July is peak summer travel season, so if this date works for your schedule, don't sit on it too long. Award availability to Europe in the summer months tends to tighten up as departure dates approach. The low taxes on this routing also make it a cleaner redemption than some alternatives that can carry hefty surcharges.
How to book
Search and book directly through United's award search tool at https://www.united.com/en/us/book-flight/united-awards/search. You'll need a United MileagePlus account with sufficient miles to complete the booking.