This transatlantic award availability is worth a look for families planning a spring break trip to the UK. At 44,000 miles per person in economy, you're saving roughly 16,000 miles compared to the typical 60,000-mile redemption for this route. Taxes and fees come in at just $30, which is refreshingly low for flights into London.

Availability appears solid for April 25, 2026, with plenty of seats showing in the search results. That's good news if you're booking for a family and need multiple seats on the same flight.

One practical tip: if you're flexible by a few days in either direction, it's worth searching nearby dates as well. Award pricing on United can fluctuate, and you may find similar availability at the same rate on adjacent travel days.

How to book

Search and book directly through United's award search tool at https://www.united.com/en/us/book-flight/united-awards/search. Log into your MileagePlus account, enter JFK to LHR, select your travel date, and filter for award flights.