Cheap flights from San Francisco to Las Vegas from £40

In general, September is the cheapest month to fly from San Francisco to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £121. If you’re not able to fly to Las Vegas in September, then June is your next best option. Flight prices from San Francisco to Las Vegas during June average around £125.

The cheapest day to depart on your flight to Las Vegas is on a Thursday when prices can be found for as low as £102. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from San Francisco because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £179.

Our data shows that the cheapest San Francisco to Las Vegas flights are usually those with departure times in the evening. Our users have found flights to Las Vegas in the evening for as low as £110. Flights to Las Vegas are more costly at midday, with an average ticket price of £202. Departure times at midday fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Francisco to Las Vegas Harry Reid Intl for the best San Francisco - Las Vegas Harry Reid Intl flight prices

You are more likely to see cheaper flights to Las Vegas from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around £145 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from San Francisco for as low as £115 on momondo.

There are 4 cabin classes available to choose from on San Francisco to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines and Alaska Airlines are the most popular carriers operating from San Francisco to Las Vegas Harry Reid Intl

Alaska Airlines, Frontier and Hawaiian Airlines are the top three most popular airlines that fly to Las Vegas from San Francisco according to our data. Alaska Airlines is the first choice among our users, with 40% of people opting to fly with this airline when travelling to Las Vegas. Keep in mind that there are 4 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

Historically, on average around 15% of flights between San Francisco and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.

The number of flights available between San Francisco and Las Vegas is 50 per day as of March 2026. The most frequent departure time is 12:00, with 40% of daily flights leaving in the afternoon.

As of March 2026, there are 350 flights per week flying from San Francisco to Las Vegas. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.