$49 Cheap Southwest Airlines flights Sacramento (SMF) to Las Vegas (LAS)

Apply the "Price (lowest to highest)" filter on Expedia to look for cheap Southwest Airlines return flights from $87 from SMF to LAS. Affordable one-way tickets from $49 are available too.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

To find cheap Southwest Airlines fares from Sacramento Intl. Airport (SMF) to Harry Reid Intl. Airport (LAS), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also influence the overall cost. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.

The first Southwest Airlines flight from SMF to LAS departs at 6:00AM UTC-8, touching down at 7:30AM UTC-8. If you prefer to jet off later, the last Southwest Airlines flight leaves SMF at 8:30PM UTC-8 and lands at LAS at 9:55PM UTC-8. Flying before midday is often a good option as morning and mid-morning flights are less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.