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

Return flights

03 May - 12 May	KLM
13 May - 03 Jun	Lufthansa
03 May - 12 May	British Airways	direct
06 May - 13 May	Air France	direct
13 May - 03 Jun	Finnair	direct
14 May - 21 May	TAP
04 May - 31 May	Finnair	direct
04 May - 31 May	Iberia
03 May - 08 May	TAP
18 May - 27 May	LEVEL
18 May - 26 May	Iberia
18 May - 26 May	Delta	direct
27 May - 24 Jun	Air Canada
27 May - 24 Jun	Finnair	direct

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

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 May from 522€

Return flights