Cheapest return flights from Denver to San Jose in March from $306

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

Return flights

03 Mar - 08 Mar United
04 Mar - 09 Mar Frontier Airlines
26 Mar - 30 Apr United
21 Mar - 24 Mar Frontier Airlines
31 Mar - 12 Apr Copa
23 Mar - 31 Mar Frontier Airlines
29 Mar - 05 Apr Frontier Airlines
28 Mar - 11 Apr Frontier Airlines
19 Mar - 24 Mar Frontier Airlines
31 Mar - 06 Apr Frontier Airlines
29 Mar - 04 Apr Copa
18 Mar - 23 Mar Volaris
27 Mar - 06 Apr Frontier Airlines
19 Mar - 23 Mar Volaris
10 Mar - 22 Mar Frontier Airlines
07 Mar - 21 Mar Frontier Airlines
20 Mar - 23 Mar Volaris

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

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