This award availability on August 12, 2026 prices out at 50,000 United MileagePlus miles per person, with minimal taxes and fees of just $6. Premium Economy offers a meaningful upgrade over standard economy, with wider seats, extra legroom, and improved meal service—all helpful perks for a transatlantic flight with kids.
The pricing here is notably better than usual. This route typically runs around 80,000 miles for Premium Economy awards through United, making this a 38% discount from standard rates. That's a savings of 30,000 miles per ticket, which adds up quickly for a family of four.
Availability appears strong at this price point, so you have some flexibility if you're still finalizing travel plans. That said, summer dates to London are always popular, and award space at this level tends to disappear as departure dates approach.
One practical tip: if you're booking for a family, search for all passengers at once to confirm enough seats are available at this price before you get too far into the booking process. United's award calendar can show different availability for different party sizes.
How to book
Search and book directly through United at united.com/en/us/book-flight/united-awards/search.