Award space has opened up for Boston (BOS) to London Heathrow (LHR) in economy on April 4, 2026. At 36,800 miles each way, this is a solid option for families looking to stretch their miles on a transatlantic trip. The $6 tax figure is notably low for flights to the UK, which often carry fuel surcharges in the hundreds.
For context, United typically prices economy awards on this route around 60,000 miles each way. This availability represents a 39% discount, which can add up quickly when booking for multiple family members. Availability appears strong for this date, so you have some flexibility if you need to coordinate schedules.
April is a pleasant time to visit London—crowds are lighter than summer, and spring weather is settling in. It's also conveniently timed for families with spring break travel in mind.
One practical note: award pricing on United can fluctuate based on demand, so if this rate works for your plans, it's worth locking in sooner rather than later. You can cancel United awards for free up to 30 days before departure if your plans change.
How to book
Search for award availability and book directly at united.com.