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

Return flights

12 Dec - 16 Dec	United
11 Dec - 15 Dec	United
01 Dec - 11 Dec	United
01 Dec - 04 Dec	Delta
14 Dec - 18 Dec	United
18 Dec - 22 Dec	United
22 Dec - 26 Dec	United
21 Dec - 25 Dec	United
18 Dec - 23 Dec	United
19 Dec - 24 Dec	United
29 Dec - 07 Jan	American Airlines
28 Dec - 05 Jan	Frontier Airlines
28 Dec - 01 Jan	Frontier Airlines
28 Dec - 03 Jan	Frontier Airlines
30 Dec - 03 Jan	Porter Airlines (Canada) Ltd
31 Dec - 03 Jan	Frontier Airlines

Also check the deals for one-way flights from Washington 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.

Book a cheap hotel in Belize City

Cheap car rent in Belize City

Cheapest return flights from Washington to Belize City in December from $329

Return flights