Every San Francisco–Las Vegas fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/san-francisco-to-las-vegas/#2026-09-21-2026-09-22-F9https://flight.deals/flights/san-francisco-to-las-vegas/#2026-09-21-2026-09-22-F9SFO → LAS round-trip on Frontier Airlines, 2026-09-21 to 2026-09-22 (1 nights). Cached fare $87 vs typical $105.Sun, 30 Aug 2026 05:03:17 GMT