Cheapest return flights from Las Vegas to San Diego in January from $48

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

Return flights

23 Jan - 25 Jan Frontier Airlines direct
29 Jan - 02 Feb Frontier Airlines direct
08 Jan - 11 Jan Frontier Airlines direct
15 Jan - 18 Jan Frontier Airlines direct
12 Jan - 19 Jan Frontier Airlines direct
06 Jan - 13 Jan Frontier Airlines direct
15 Jan - 15 Jan Alaska Airlines direct
14 Jan - 17 Jan Hawaiian Airlines direct
20 Jan - 20 Jan Southwest Airlines direct
18 Jan - 21 Jan Southwest Airlines direct

Also check the deals for one-way 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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