Cheapest one-way flights from Denver to San Diego in April from 67€

AirHint found the following cheapest one-way flights from Denver (DEN) to San Diego (SAN) in April 2026 (see full year).

One-Way flights

07 Apr Frontier Airlines direct
04 Apr Frontier Airlines direct
20 Apr Southwest Airlines direct
28 Apr Southwest Airlines direct
25 Apr Southwest Airlines direct
24 Apr United direct
26 Apr United direct

Also check the deals for return flights from Denver to San Diego in April.

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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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