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	Delta
06 May - 13 May	TAP
06 May - 13 May	British Airways	direct
03 May - 12 May	British Airways	direct
13 May - 03 Jun	United
13 May - 03 Jun	Finnair	direct
14 May - 21 May	TAP
04 May - 31 May	TAP
15 May - 18 May	TAP
03 May - 08 May	TAP
04 May - 31 May	British Airways	direct
14 May - 18 May	TAP
24 May - 02 Jun	TAP
24 May - 02 Jun	American Airlines	direct
27 May - 24 Jun	Spirit Airlines
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 $631

Return flights