Cheapest return flights from Seattle to Belize City in December from $370

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

Return flights

05 Dec - 08 Dec United
04 Dec - 08 Dec United
03 Dec - 07 Dec Alaska Airlines
18 Dec - 21 Dec American Airlines
19 Dec - 26 Dec American Airlines
30 Dec - 06 Jan American Airlines
27 Dec - 04 Jan Alaska Airlines
24 Dec - 01 Jan Alaska Airlines
26 Dec - 02 Jan Alaska Airlines

Also check the deals for one-way flights from Seattle to Belize City in December.

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