Cheapest return flights from Denver to San Jose in October from 251€

AirHint found the following cheapest return flights from Denver (DEN) to San Jose (SJO) in October 2025 (see full year).

Return flights

07 Oct - 14 Oct United
04 Oct - 08 Oct Southwest Airlines
18 Oct - 25 Oct Frontier Airlines

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

Skyscanner

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Feel free to contact us with any feedback or request another flight research.