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

Return flights

03 Dec - 11 Dec	KLM
04 Dec - 11 Dec	KLM
03 Dec - 07 Dec	KLM
03 Dec - 07 Dec	TAP	direct
03 Dec - 11 Dec	TAP	direct
04 Dec - 07 Dec	TAP	direct
03 Dec - 06 Dec	Air Europa
08 Dec - 15 Dec	United
29 Dec - 06 Jan	Air Canada
30 Dec - 08 Jan	Air France
08 Dec - 15 Dec	TAP	direct
25 Dec - 01 Jan	KLM
29 Dec - 06 Jan	TAP	direct
25 Dec - 01 Jan	TAP	direct
22 Dec - 01 Jan	KLM
27 Dec - 04 Jan	Scandinavian Airlines
22 Dec - 01 Jan	TAP	direct
22 Dec - 04 Jan	KLM
19 Dec - 28 Dec	Air France
28 Dec - 04 Jan	TAP	direct

Also check the deals for one-way flights from Miami to Lisbon 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 Lisbon in December from 325€

Return flights