AirHint found the following cheapest return flights from Denver (DEN) to Buenos Aires (EZE) in January 2026 (see full year).

Return flights

22 Jan - 27 Jan	Frontier Airlines
30 Jan - 08 Feb	Frontier Airlines
23 Jan - 31 Jan	Frontier Airlines
18 Jan - 25 Jan	Air Canada
15 Jan - 18 Jan	American Airlines
15 Jan - 19 Jan	United
16 Jan - 26 Jan	United
15 Jan - 26 Jan	United

Also check the deals for one-way flights from Denver to Buenos Aires in January.

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 Denver to Buenos Aires in January from $934

Return flights