Cheapest one-way flights from San Francisco to San Diego in April from 18€

Best time to book flights for San Francisco (SFO) to San Diego (SAN) flights at AirHint

AirHint found the following cheapest one-way flights from San Francisco (SFO) to San Diego (SAN) in April 2025 (see full year).

One-Way flights

05 Apr Frontier Airlines direct
20 Apr Frontier Airlines direct
28 Apr Frontier Airlines direct
22 Apr Alaska Airlines direct
07 Apr United direct
26 Apr United direct
17 Apr United direct
25 Apr United direct
23 Apr United direct
02 Apr United direct

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

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.

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