If you're planning a family trip to London next summer, this is a reasonable redemption worth considering. United MileagePlus is pricing economy awards from Boston (BOS) to London Heathrow (LHR) at 40,000 miles, with minimal taxes and fees of just $6. Travel date availability includes July 14, 2026, and inventory looks healthy with plenty of seats to choose from.
This rate represents solid value compared to typical pricing. Economy awards on this route through United usually run around 60,000 miles, making this deal roughly 33% cheaper than normal. For a family of four, that's a savings of 80,000 miles—enough for two additional domestic round trips.
The low taxes are worth highlighting here. Transatlantic awards can sometimes carry hefty carrier surcharges, but at just $6, you're looking at a true sweet spot redemption where your miles are doing nearly all the work.
Practical tip: July is peak summer travel season for families, so if you're flexible, search a few days in either direction to maximize your options. Award space at this price point tends to disappear as summer approaches.
How to book
Search and book directly through United at united.com/en/us/book-flight/united-awards/search. You'll need a United MileagePlus account with sufficient miles to complete the booking.