Cheapest return flights from Las Vegas to San Diego in September from $55

AirHint found the following cheapest return flights from Las Vegas (LAS) to San Diego (SAN) in September 2025 (see full year).

Return flights

26 Sep - 29 Sep Frontier Airlines direct
25 Sep - 30 Sep Spirit Airlines direct
26 Sep - 28 Sep Frontier Airlines direct
24 Sep - 30 Sep Spirit Airlines direct
25 Sep - 04 Oct Spirit Airlines direct
25 Sep - 01 Oct Spirit Airlines direct
30 Sep - 01 Oct Spirit Airlines direct
24 Sep - 04 Oct Spirit Airlines direct
24 Sep - 01 Oct Spirit Airlines direct
29 Sep - 01 Oct Frontier Airlines direct
27 Sep - 30 Sep Spirit Airlines direct
30 Sep - 07 Oct Frontier Airlines direct
27 Sep - 04 Oct Spirit Airlines direct
27 Sep - 01 Oct Spirit Airlines direct
25 Sep - 03 Oct Spirit Airlines direct
27 Sep - 28 Sep Spirit Airlines direct
27 Sep - 29 Sep Spirit Airlines direct
24 Sep - 29 Sep Spirit Airlines direct
24 Sep - 24 Sep Spirit Airlines direct
24 Sep - 25 Sep Spirit Airlines direct

Also check the deals for one-way flights from Las Vegas to San Diego in September.

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.

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.