Cheap Flights San Diego to Las Vegas from £18

Flight FAQs

• Which airlines offer the cheapest flights from San Diego to Las Vegas?

  Based on Trip.com data, Frontier Airlines offers Cheapest nonstop one-way flights from £18 (for example, SAN–LAS on Thu, Nov 12). For a Cheapest nonstop return flight, Frontier Airlines offers fares from £30, departing on Tue, Oct 20 and returning on Tue, Oct 27.

• Which airlines offer direct flights from San Diego to Las Vegas?

  At the moment, you can catch a direct flight from San Diego to Las Vegas with the following airlines, including: Frontier Airlines Alaska Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long is a flight from San Diego to Las Vegas?

  A flight from San Diego (SAN) to Las Vegas (LAS) takes an average of 1 hour 31 minutes.

• When is the best time to book flights from San Diego to Las Vegas?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from San Diego to Las Vegas is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there from San Diego to Las Vegas each week?

  On average, 105 direct flights operate each week between San Diego and Las Vegas. See below the schedules of the main airlines serving this route:
  Alaska Airlines: S/M/T/W/T/F/S – AS2165 (departure at 09:16) Alaska Airlines: S/M/T/W/T/F/S – AS2068 (departure at 12:13) Alaska Airlines: S/M/T/W/T/F/S – AS2018 (departure at 18:01)

• How can I find the best deals on flights from San Diego to Las Vegas?

  Here are some tips for finding the best flight deals from San Diego to Las Vegas on Trip.com:
  · Be flexible with your travel dates. The cheapest flight is currently on Thu, Nov 12, with one-way fares from just £18.
  · Compare airlines. Frontier Airlines currently offers the lowest fares on this route.
  · Set up a price alert to track fare changes without searching every day.
  · Check Trip.com regularly for flight deals and available promo codes.
  · Avoid peak season or book early. July is generally the busiest month for travel to Las Vegas.
  · Get exclusive promo codes on the Trip.com app.

• When is the best time to book a flight from San Diego to Las Vegas to get the best price?

  The cheapest month to book a flight from San Diego to Las Vegas is usually September, when demand is lower.

• Which upcoming date is the cheapest for flights from San Diego to Las Vegas?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from San Diego to Las Vegas on October 24, 2026 with Frontier Airlines, with prices starting at £18.

• Which airports should you choose for flights from San Diego to Las Vegas?

  Flights to Las Vegas can arrive at: Boulder City Municipal Airport (BLD), Henderson Executive Airport (HSH), Harry Reid International Airport (LAS) and Nellis Air Force Base (LSV). The most common route connects San Diego International Airport and Harry Reid International Airport (SAN–LAS).

• What is the time difference between San Diego and Las Vegas?

  The time difference between Las Vegas and San Diego is 0m.

• How can I change or cancel my flight ticket from San Diego to Las Vegas?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average price of a one-way flight from San Diego to Las Vegas?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from San Diego to Las Vegas is £107. Fares vary by travel date, airline and availability.

• What is the average price of a return flight from San Diego to Las Vegas?

  Based on Trip.com data for flights departing in the next 30 days, the average return fare from San Diego to Las Vegas is £154. Fares vary by travel date, airline and availability.

• How do I book flights from San Diego to Las Vegas on Trip.com?

  Enter San Diego and Las Vegas, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the San Diego to Las Vegas route?

  Frontier Airlinesare the most popular budget airlines flying from San Diego to Las Vegas. Check baggage, seat and payment fees before comparing the final price.