Cheapest one-way flights from San Francisco to San Diego in April from 24€

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

One-Way flights

20 Apr Frontier Airlines direct
16 Apr Frontier Airlines direct
22 Apr Southwest Airlines direct
28 Apr Alaska Airlines direct
08 Apr United direct
14 Apr Southwest Airlines direct
18 Apr Southwest Airlines direct
11 Apr Southwest Airlines direct
15 Apr Southwest Airlines direct
07 Apr United direct

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

Powered by

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 Diego

Cheap car rent in San Diego

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