AirHint found the following cheapest return flights from Trenton (TTN) to Santo Domingo (SDQ) in December 2025 (see full year).

Return flights

25 Dec - 15 Jan	Frontier Airlines
20 Dec - 21 Dec	Frontier Airlines
27 Dec - 02 Jan	Frontier Airlines
20 Dec - 17 Jan	Frontier Airlines
18 Dec - 02 Jan	Frontier Airlines
26 Dec - 28 Dec	Frontier Airlines
20 Dec - 06 Jan	Frontier Airlines
18 Dec - 04 Jan	Frontier Airlines
20 Dec - 04 Jan	Frontier Airlines
18 Dec - 06 Jan	Frontier Airlines
18 Dec - 05 Jan	Frontier Airlines
26 Dec - 03 Jan	Frontier Airlines

Also check the deals for one-way flights from Trenton to Santo Domingo 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 Trenton to Santo Domingo in December from 443€

Return flights