Award availability has opened up on the Boston to London Heathrow route in business class for travel on April 21, 2026. At 88,000 United MileagePlus miles plus $31 in taxes and fees, this represents a meaningful discount from what you'd typically pay for this route.

For context, business class awards between Boston and London usually price around 140,000 miles through United's dynamic pricing. This availability comes in at roughly 37% below that standard rate, making it a worthwhile use of your miles if the dates work for your schedule.

Availability appears to be solid right now, with plenty of seats showing. That said, award space at these rates doesn't always last, so if you've been planning a spring trip to London, it's worth taking a look sooner rather than later.

One practical note: April is a pleasant time to visit London, with milder weather and fewer crowds than summer. It also falls during spring break for many school districts, which may work well for family travel planning.

How to book

Search and book directly through United at united.com/en/us/book-flight/united-awards/search. Log into your MileagePlus account, select "Book with miles," and enter Boston (BOS) to London (LHR) with your April 2026 travel dates.