If you've been sitting on a stash of United miles and have London on your list, this is a good time to take a look. Economy awards from Boston (BOS) to London Heathrow (LHR) are pricing at 36,800 miles plus just $6 in taxes for travel on April 2, 2026. Availability appears wide open, making this relatively easy to book for families or groups traveling together.
For context, economy awards on this route through United MileagePlus typically run around 60,000 miles each way. At 36,800 miles, you're saving roughly 23,000 miles per ticket—a meaningful difference if you're booking for a family of four.
The minimal taxes are also worth noting. Transatlantic awards can sometimes carry hefty surcharges depending on the carrier, but at $6 per person, this keeps the out-of-pocket cost negligible.
One practical tip: April in London means mild but unpredictable weather, so pack layers. It's also shoulder season, which usually means smaller crowds at major attractions and more reasonable hotel rates compared to summer months.
How to book
Search for award availability and book directly through United at: https://www.united.com/en/us/book-flight/united-awards/search