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

Return flights

09 Dec - 23 Dec	Frontier Airlines
03 Dec - 10 Dec	Frontier Airlines
03 Dec - 10 Dec	United	direct
09 Dec - 15 Dec	Copa
10 Dec - 15 Dec	Copa
24 Dec - 16 Jan	Frontier Airlines
08 Dec - 08 Jan	Avianca
13 Dec - 29 Dec	United
25 Dec - 01 Jan	United	direct
23 Dec - 31 Jan	United
20 Dec - 31 Dec	Frontier Airlines
23 Dec - 31 Jan	Avianca	direct
19 Dec - 01 Jan	Frontier Airlines
19 Dec - 05 Jan	Frontier Airlines
20 Dec - 05 Jan	Frontier Airlines
23 Dec - 08 Jan	Avianca
19 Dec - 23 Dec	Frontier Airlines
13 Dec - 04 Jan	Avianca	direct

Also check the deals for one-way flights from Washington to Guatemala 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 Washington to Guatemala City in December from 285€

Return flights