Cheap flights from San Diego to Las Vegas from £40

In general, August is the cheapest month to fly from San Diego to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £72. If you’re not able to fly to Las Vegas in August, then September is your next best option. Flight prices from San Diego to Las Vegas during September average around £79.

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

You are more likely to see cheaper flights to Las Vegas from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around £109 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 Diego for as low as £77 on momondo.

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

Historically, on average around 17% of flights between San Diego and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 114 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night 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. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Delta have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

As of June 2026, there are 18 flights per day flying from San Diego to Las Vegas. The most common time of day flights depart is 09:00, with 40% of flights taking off at midday.

As of June 2026, 130 flights take off from San Diego and land in Las Vegas each week. The most common flight departure day for this route is Thu, with 19% of weekly flights taking off on this day.