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

Return flights

10 Dec - 20 Dec	Frontier Airlines
15 Dec - 22 Dec	American Airlines	direct
07 Dec - 10 Dec	American Airlines	direct
17 Dec - 24 Dec	American Airlines	direct
28 Dec - 16 Jan	Frontier Airlines
11 Dec - 18 Dec	American Airlines	direct
12 Dec - 19 Dec	American Airlines	direct
14 Dec - 21 Dec	American Airlines	direct
08 Dec - 20 Dec	Delta
09 Dec - 20 Dec	Delta
08 Dec - 22 Dec	Delta
19 Dec - 05 Jan	Spirit Airlines
17 Dec - 06 Jan	Frontier Airlines
26 Dec - 18 Jan	Spirit Airlines

Also check the deals for one-way flights from Miami to Belize City 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 Belize City in December from 322€

Return flights