$23 Cheap Flights from San Diego (SAN) to Las Vegas (LAS)

San Diego (SAN) to Las Vegas (LAS) at a glance

Explore a range of airlines offering flights from San Diego International Airport (SAN) to Harry Reid International Airport (LAS) on this popular domestic route. Whether you're looking for cheap fares or prefer a full-service experience, compare your options to find the best fit for your travel budget and schedule. With weekly flights available, you're all set to experience the vibrant sights and neighborhoods of Las Vegas from San Diego.

• Fastest flight duration: around 1h 30m non-stop
• Route distance: roughly 250 miles (400 km)
• Flights per week: around 90+ flights with multiple daily departures on average
• Typical fares (one-way): economy tickets often range from $35–$185, depending on seasonality and how far ahead you book

Flights from San Diego International Airport (SAN) to Harry Reid International Airport (LAS)

Based on recent traveler bookings, here’s a look at the most popular airlines for flights from San Diego to Las Vegas, featuring both non-stop and one-stop options. Many travelers prefer connecting flights with layovers at Sky Harbor International Airport, PHX (approximately 1h 30m), Los Angeles International Airport, LAX (around 1 hour), and Norman Y. Mineta San Jose International Airport, SJC (about 1 hour). This variety allows you to compare prices, total travel time, and cabin class, helping you craft the perfect itinerary for your trip.

• Southwest Airlines: This budget airline provides both non-stop and one-stop options, with one-way fares generally falling between $40 and $205. It represents about 49% of the flights on this route, featuring a typical non-stop travel time of 1 hour and 30 minutes.
• Alaska Airlines: As a full-service airline, Alaska Airlines offers non-stop service with one-way ticket prices usually ranging from $50 to $205. It makes up roughly 25% of departures on this route, with a total travel duration of 1 hour and 30 minutes.
• Delta: A full-service airline that provides both non-stop and one-stop flights, Delta's one-way fares typically vary from $40 to $190. It accounts for around 16% of the departures on this route, with a standard non-stop flying time of 1 hour and 30 minutes.
• Frontier Airlines: This low-cost carrier specializes in non-stop flights, with one-way fares generally priced between $35 and $125. Frontier comprises about 8% of the departures on this route, maintaining a consistent total journey time of 1 hour and 30 minutes.
• Hawaiian Airlines: Known as a full-service airline, Hawaiian Airlines offers non-stop service with one-way fares typically ranging from $50 to $195. The total travel time on this route is 1 hour and 30 minutes.

Travelers have the option to upgrade their flights from San Diego to Las Vegas with several top airlines. Alaska Airlines offers first class and business class, Delta provides first class and premium economy, while Hawaiian Airlines features first class service on its routes.

Best time to fly from San Diego (SAN) to Las Vegas (LAS)

The most popular months for travelers flying from San Diego to Las Vegas are January, March, and April, when peak temperatures in Las Vegas reach up to 66.4°F in April. If you prefer quieter travel, consider June, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 86°F. For better deals, June and August usually offer the lowest average one-way fares around $85. Flight availability peaks in October, with approximately 114 flights per week, making it easier to find convenient departure times. January has the fewest flights, with approximately 71 flights per week.

• Cheapest time to fly: June and August usually offer good deals with average one-way fares around $85, roughly 12% cheaper than the yearly average.
• More budget-friendly months to fly: July and September typically offer average one-way fares of around $90.
• Most flight options: October has the highest number of flights from San Diego to Las Vegas, with approximately 114 flights per week, giving you more flexibility in scheduling your trip.

*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.

Alternative route from San Diego (SAN) to Las Vegas (LAS)

• San Diego to Henderson (SAN-HSH): Henderson Executive Airport (HSH) lies approximately 7 miles from Harry Reid International Airport (LAS).

How to find the best prices for flights from San Diego (SAN) to Las Vegas (LAS)

Getting some of the best deals on flights from San Diego to Las Vegas is all about timing and flexibility. Here are some key tips to help you save:

1. Best times to book and fly: cheaper fares are typically found when booking 2-8 weeks ahead, although most travelers book within 2 weeks. Afternoon departures from 12 p.m. to 6 p.m. tend to offer lower prices and are the most popular flight times. Additionally, flying on Sunday usually provides cheaper options, even though Friday remains the most popular travel day.
2. Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
3. Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
4. Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
5. Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
6. Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.

*Members only. Savings vary and are not available on all bundles. Select hotels.

Arriving at Harry Reid International Airport from San Diego International Airport

Las Vegas welcomes travelers from San Diego with a range of transport options based on price, convenience, and proximity. Here's how to reach Las Vegas efficiently:

• Hotel transfer: Transfers offer a convenient way to reach your hotel in Las Vegas, with private rides that can be arranged in advance.
• Car rental: Renting a car from Harry Reid International Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Harry Reid International Airport on Expedia.
• Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
• Public transportation: From Harry Reid International Airport, travelers can easily access several transport options. Las Vegas International Airport Station, a train station, is located about 0.1 miles away on foot, while the South Strip Transit Terminal, a bus station, lies approximately 2.5 miles from the airport by car. Additionally, MGM Grand Monorail Station, a metro station, is situated around 3.4 miles away by car.

San Diego to Las Vegas Flights

The cheapest times to fly from San Diego to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Las Vegas are during the month of February. You can find some of the cheapest flights from San Diego to Las Vegas with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Diego to Las Vegas

Sunday is one of the best days to book for cheap flights from San Diego to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from San Diego to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Las Vegas in 2026. You can also book with separate airlines for your outbound and return journeys, from $23 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.