Cheapest return MIA–LHR flights, December

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

Return flights

02 Dec - 13 Dec LEVEL
02 Dec - 08 Dec Icelandair
14 Dec - 28 Dec LEVEL
02 Dec - 08 Dec Finnair direct
02 Dec - 13 Dec British Airways direct
22 Dec - 29 Dec KLM direct
14 Dec - 28 Dec Finnair direct
22 Dec - 05 Jan SWISS
18 Dec - 27 Dec TAP
17 Dec - 24 Dec British Airways
22 Dec - 05 Jan Finnair direct
18 Dec - 27 Dec Finnair direct
19 Dec - 02 Jan Scandinavian Airlines

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

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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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