Round trip flights between LA and SF for $38

Frontier Airlines has round trip nonstop fares between Los Angeles (LAX) and San Francisco (SFO) for $38. This fare covers only a personal item that fits under the seat, with no seat selection, carry-on bag, or changes allowed. Travel is available on select dates from October through December 2026. To get this deal, book through Expedia or directly with Frontier Airlines by selecting the listed travel dates. This is a very low price for nonstop flights between these two popular cities, making it a good opportunity for flexible travelers seeking budget options.