This award opens up a transatlantic business class seat at a price you don't often see. The Miami to London Heathrow route typically runs around 115,000 AAdvantage miles in business, so 57,500 miles represents a genuine 50% discount. Note that taxes and fees come to $738, which is standard for premium cabin awards departing from or arriving in the UK.

Only three seats are showing at this price, so this one is best suited for solo travelers or couples rather than larger families. April is a pleasant time to visit London—past the winter gray but before peak summer crowds—and school spring breaks often fall around this window.

One practical consideration: if you're pooling miles from multiple family members, make sure your AAdvantage accounts are set up for household sharing or that you have enough miles in a single account. Transferring miles between unrelated accounts isn't an option with American.

How to book

Search and book directly through American Airlines at aa.com. Enter Miami (MIA) to London (LHR), select April 5, 2026, and filter by business class award availability.