Cheapest return flights from Denver to Houston in January from $230

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

Return flights

31 Jan - 07 Feb Frontier Airlines
29 Jan - 02 Feb Frontier Airlines
31 Jan - 05 Feb Frontier Airlines
29 Jan - 01 Feb Frontier Airlines
30 Jan - 31 Jan Frontier Airlines
30 Jan - 02 Feb Frontier Airlines
30 Jan - 01 Feb Frontier Airlines
27 Jan - 29 Jan Frontier Airlines
30 Jan - 01 Feb Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct
29 Jan - 02 Feb Frontier Airlines direct
30 Jan - 02 Feb Frontier Airlines direct
28 Jan - 29 Jan Frontier Airlines direct
27 Jan - 29 Jan Frontier Airlines direct
30 Jan - 31 Jan United direct

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

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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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