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

Return flights

05 May - 20 May	Air Canada
06 May - 20 May	TAP
05 May - 19 May	TAP
02 May - 18 May	Air Canada
04 May - 20 May	Air Canada
12 May - 20 May	Air Canada
12 May - 19 May	TAP
06 May - 13 May	Iberia
07 May - 10 May	TAP
05 May - 20 May	Finnair	direct
26 May - 07 Jun	TAP
24 May - 03 Jun	TAP
21 May - 02 Jun	TAP
21 May - 02 Jun	Air France	direct
27 May - 18 Jun	TAP
27 May - 18 Jun	Air France	direct
24 May - 03 Jun	Air France	direct
30 May - 07 Jun	Air Canada
30 May - 14 Jun	Air Canada
26 May - 07 Jun	Air France	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 $617

Return flights