This award availability puts you in first class from Boston (BOS) to London Heathrow (LHR) on April 9, 2026. At 140,000 MileagePlus miles plus $30 in taxes, it's a solid opportunity for anyone sitting on a United miles balance and looking to fly up front to Europe next spring.
For context, first class awards on this route typically price closer to 220,000 miles through United's dynamic pricing. That makes this rate roughly 80,000 miles cheaper than the norm—a meaningful difference whether you're saving miles for future trips or simply prefer not to overpay for premium cabins.
Only two seats are showing at this price, so this works best for a solo traveler or a couple. If you're traveling as a larger family, you may need to split across cabins or keep searching for dates with more availability.
One practical note: April is a pleasant time to visit London, with milder weather and fewer crowds than summer. It also falls outside most school spring breaks, which may explain the lower award pricing.
How to book
Search and book directly through United at united.com/en/us/book-flight/united-awards/search. Log into your MileagePlus account, enter your dates, and filter for first class to confirm availability.