Cheapest one-way flights from Las Vegas to San Diego in January from $21

AirHint found the following cheapest one-way flights from Las Vegas (LAS) to San Diego (SAN) in January 2026 (see full year).

One-Way flights

29 Jan Frontier Airlines direct
30 Jan Frontier Airlines direct
22 Jan Frontier Airlines direct
23 Jan Frontier Airlines direct
26 Jan Frontier Airlines direct
06 Jan Frontier Airlines direct
08 Jan Frontier Airlines direct
21 Jan Alaska Airlines direct
27 Jan Alaska Airlines direct
28 Jan Alaska Airlines direct

Also check the deals for return flights from Las Vegas to San Diego in January.

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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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