Cheapest return flights from Denver to San Francisco in March from $165

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

Return flights

06 Mar - 08 Mar Frontier Airlines direct
08 Mar - 13 Mar Frontier Airlines
09 Mar - 13 Mar Frontier Airlines
08 Mar - 13 Mar Frontier Airlines direct
09 Mar - 13 Mar Frontier Airlines direct
16 Mar - 19 Mar Frontier Airlines direct
13 Mar - 17 Mar Frontier Airlines
13 Mar - 17 Mar Frontier Airlines direct
26 Mar - 29 Mar Frontier Airlines direct
08 Mar - 11 Mar Southwest Airlines direct

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

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