AirHint found the following cheapest return flights from Miami (MIA) to London (LGW) in December 2025 (see full year).

Return flights

10 Dec - 16 Dec	TAP
11 Dec - 15 Dec	TAP
02 Dec - 09 Dec	TAP
02 Dec - 08 Dec	TAP
15 Dec - 24 Dec	American Airlines
01 Dec - 04 Dec	TAP
24 Dec - 31 Dec	TAP
24 Dec - 28 Dec	American Airlines
10 Dec - 18 Dec	Iberia For Level
26 Dec - 11 Jan	TAP
16 Dec - 30 Dec	American Airlines
23 Dec - 01 Jan	Spirit Airlines
23 Dec - 08 Jan	Spirit Airlines
25 Dec - 01 Jan	FrenchBee
17 Dec - 07 Jan	Spirit Airlines
23 Dec - 15 Jan	TAP
16 Dec - 03 Jan	American Airlines
18 Dec - 02 Jan	Scandinavian Airlines
21 Dec - 02 Jan	Scandinavian Airlines
13 Dec - 02 Jan	American Airlines

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

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 December from 370€

Return flights