Compare every airline flying MIA → LHR in one search and book the lowest fare. Typically $400–$850 one-way.
Search MIA → LHR fares →The Miami–London route is served by British Airways, Virgin Atlantic, American. Voyago searches all of them at once — plus online travel agencies — and shows you the cheapest fare across every provider, so you never overpay by only checking one airline's site.
About 9h nonstop.
British Airways, Virgin Atlantic, American.
Fares are usually lowest in January–March and late spring.
One-way fares commonly run $400–$850 depending on season and how far ahead you book. Search above for today's live prices.