AirHint found the following cheapest return flights from Miami (MIA) to London (LHR) in August 2026 (see full year).

Return flights

25 Aug - 01 Sep	Air Canada
19 Aug - 04 Sep	United
17 Aug - 24 Aug	Iberia
27 Aug - 03 Sep	Air Canada
13 Aug - 19 Aug	Finnair
24 Aug - 31 Aug	United
18 Aug - 21 Aug	Scandinavian Airlines
13 Aug - 19 Aug	American Airlines	direct
09 Aug - 16 Aug	Finnair
24 Aug - 28 Aug	TAP
20 Aug - 06 Sep	British Airways	direct
05 Aug - 15 Aug	British Airways	direct
09 Aug - 16 Aug	American Airlines	direct
24 Aug - 31 Aug	Air France	direct
27 Aug - 03 Sep	British Airways	direct

Also check the deals for one-way flights from Miami to London in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Miami to London in August from $667

Return flights