Cheapest return flights from Denver to San Jose in May from 303€

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

Return flights

09 May - 16 May Frontier Airlines
16 May - 24 May United
16 May - 23 May Southwest Airlines
03 May - 12 May Frontier Airlines
29 May - 10 Jun United
03 May - 13 May Southwest Airlines
29 May - 09 Jun United
30 May - 10 Jun Copa
18 May - 26 May Frontier Airlines
16 May - 26 May Southwest Airlines
29 May - 06 Jun United
30 May - 06 Jun Frontier Airlines
22 May - 27 May Southwest Airlines
24 May - 03 Jun Frontier Airlines
31 May - 07 Jun Southwest Airlines

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

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