AirHint found the following cheapest return flights from Denver (DEN) to San Jose (SJO) in February 2026 (see full year).

Return flights

23 Feb - 02 Mar	United
27 Feb - 09 Mar	United
23 Feb - 03 Mar	United
26 Feb - 11 Mar	Copa
26 Feb - 03 Mar	Copa
08 Feb - 16 Feb	Copa
26 Feb - 09 Mar	Frontier Airlines
14 Feb - 21 Feb	Frontier Airlines
14 Feb - 22 Feb	Frontier Airlines
12 Feb - 22 Feb	Frontier Airlines
25 Feb - 25 Feb	Delta
28 Feb - 28 Feb	United

Also check the deals for one-way flights from Denver to San Jose in February.

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 San Jose in February from 247€

Return flights