Cheap Flights from Las Vegas NV to San Diego CA from $48

Your route at a glance

Cheapest deal$48

Cheapest monthJanuary

Average flight duration1 hour and 17 minutes

Flight deals from Las Vegas to San Diego

Looking for a cheap last-minute deal or the best round-trip flight from Las Vegas to San Diego? Find the lowest prices on one-way and round-trip tickets right here.

San Diego.$48 per passenger.Departing Thu, Jan 29, returning Mon, Feb 2.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Thu, Jan 29, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Mon, Feb 2, arriving in Harry Reid.Price includes taxes and charges.From $48, select.

San Diego.$49 per passenger.Departing Thu, Dec 18, returning Thu, Jan 8.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Thu, Dec 18, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Thu, Jan 8, arriving in Harry Reid.Price includes taxes and charges.From $49, select.

San Diego.$53 per passenger.Departing Thu, Jan 22, returning Thu, Jan 29.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Thu, Jan 22, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Thu, Jan 29, arriving in Harry Reid.Price includes taxes and charges.From $53, select.

San Diego.$56 per passenger.Departing Fri, Feb 20, returning Sun, Feb 22.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Fri, Feb 20, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Sun, Feb 22, arriving in Harry Reid.Price includes taxes and charges.From $56, select.

San Diego.$58 per passenger.Departing Fri, Apr 3, returning Sun, Apr 5.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Fri, Apr 3, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Sun, Apr 5, arriving in Harry Reid.Price includes taxes and charges.From $58, select.

San Diego.$61 per passenger.Departing Fri, Mar 13, returning Sun, Mar 15.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Fri, Mar 13, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Sun, Mar 15, arriving in Harry Reid.Price includes taxes and charges.From $61, select.

San Diego.$61 per passenger.Departing Fri, Feb 27, returning Sun, Mar 1.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Fri, Feb 27, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Sun, Mar 1, arriving in Harry Reid.Price includes taxes and charges.From $61, select.

San Diego.$94 per passenger.Departing Tue, Dec 23, returning Wed, Dec 24.Round-trip flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departing from Harry Reid on Tue, Dec 23, arriving in San Diego International.Inbound direct flight with Frontier Airlines departing from San Diego International on Wed, Dec 24, arriving in Harry Reid.Price includes taxes and charges.From $94, select.

Find the cheapest month to fly from Las Vegas to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Las Vegas to San Diego flights are currently cheapest in January.

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Direct flights from Las Vegas to San Diego

Alternative Las Vegas to San Diego routes

Looking for the cheapest, fastest or easiest route from Las Vegas to San Diego? You could fly into the following airports instead.

Finding cheap flights from Las Vegas to San Diego: Frequently asked questions

How many airports are there in San Diego?

There are 2 airports in San Diego: San Diego International and McClellan – Palomar.

How much are round-trip flights from Las Vegas to San Diego?

The best price we found for a round-trip flight from Las Vegas to San Diego is $48. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Las Vegas to San Diego?

1 hour and 17 minutes is the average flight time from Las Vegas to San Diego.

Which airlines fly direct from Las Vegas to San Diego?

Southwest Airlines, Alaska Airlines and SkyWest Airlines fly direct from Las Vegas to San Diego.

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

There are 235 flights per week flying from Las Vegas to San Diego, as of December 2025.

When is the cheapest time to fly from Las Vegas to San Diego?

The cheapest month to fly from Las Vegas to San Diego is usually January.

What's the cheapest airport to fly to in San Diego?

If you're flying from Las Vegas, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the center of San Diego. We've found flights to this airport from $48.

Which upcoming date is cheapest to fly from Las Vegas to San Diego on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Las Vegas to San Diego on Thursday, January 29, 2026.

Can I get a direct flight from Las Vegas to San Diego?

Yes – the average flight time is 1 hour and 17 minutes.

How can I get the best flight deal from Las Vegas to San Diego?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to San Diego?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in San Diego?

In December, the average temperature is usually around 13°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.

Which is the cheapest airline to fly with from Las Vegas to San Diego?

The cheapest airline that flies to San Diego is Frontier Airlines.

Traveling from Las Vegas to San Diego: what you need to know

Get your trip started at Harry Reid Airport (formerly McCarran Airport) (LAS), the main airport in Las Vegas. Search for flights from Las Vegas to San Diego that leave from this base.
The chief entry points to San Diego are San Diego International Airport (SAN) and McClellan-Palomar Airport (CLD).
The average duration of a direct Las Vegas to San Diego flight is 1 hour 15 minutes.
Las Vegas and San Diego follow the same timezone, UTC-7.
With 99 flights a week between the two airports, Harry Reid Airport (formerly McCarran Airport) (LAS) to San Diego International Airport (SAN) is the busiest route. Board the earliest flight from Las Vegas to San Diego with Southwest Airlines at 05:55. If you'd like to get more out of your day before leaving, the latest departure from LAS to SAN is with Spirit Airlines at 23:25.
Give yourself plenty of time to get on your Las Vegas to San Diego flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.
You can expect longer queues in popular months like October. Arriving up to four hours in advance for international flights and two hours for domestic departures will give you plenty of time for security and boarding.

How to find the cheapest flights from Las Vegas to San Diego

$19 is the best price for a one-way ticket from Las Vegas to San Diego. Return flights start from $48. These fares can change depending on demand.
To secure cheap Las Vegas to San Diego flights, reserve your journey two months ahead of your departure date.
Plan your trip for May. That's the best month for landing cheap plane tickets from Las Vegas to San Diego. If you're open to different travel dates, use the 'Whole month' tool to see the cheapest price across each month.
Save time searching for cheap flights from Las Vegas to San Diego by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Tailor your travel plans using filters. Pick your departure and arrival times, airlines and total journey duration. You can also sort your results by 'Best,' 'Fastest' or 'Cheapest' Las Vegas to San Diego flights.

Flying from Las Vegas

Harry Reid Airport (formerly McCarran Airport) (LAS)

You can book a direct flight from Las Vegas to San Diego departing from Harry Reid Airport (formerly McCarran Airport) (LAS). Begin your journey at LAS and arrive at San Diego International Airport (SAN).
These are some of the major carriers offering direct Las Vegas to San Diego plane tickets with departures from LAS:
Located around 10 kilometers from the center of Las Vegas, LAS can be reached in about 15 minutes by car, depending on traffic. The journey by public transport takes roughly 1 hour.
Searching for a handy hotel near Harry Reid Airport (formerly McCarran Airport)? If you're boarding an early flight from Las Vegas to San Diego, these stays will put you moments from check-in:
Harry Reid Airport (formerly McCarran Airport) has an excellent on-time performance, reducing the likelihood of delays. Departures from LAS land at their destination as scheduled 82.07% of the time.
You'll find LAS at 5757 Wayne Newton Boulevard.

Arriving in San Diego

San Diego International Airport (SAN)

San Diego International Airport (SAN) to central San Diego takes about 10 minutes by car. The center is roughly 5 kilometers away.
When traveling on public transport, expect a journey time of around 20 minutes.
If you're coming in on a late flight from Las Vegas to San Diego, few things beat the convenience of staying near the terminal. Grab your suitcases from the carousel and then be showered and sleeping soon after at one of these hotels near SAN:
Fast-track your adventure by picking up a San Diego International Airport rental car. Grab your wheels from Thrifty, Dollar or Budget and experience the lesser-explored corners of San Diego and beyond.
To lock in the lowest price, reserve your vehicle from San Diego International Airport around two weeks ahead of your Las Vegas to San Diego flight.
You'll find SAN at N Harbor Dr.

McClellan-Palomar Airport (CLD)

McClellan-Palomar Airport (CLD) is about 48 kilometers from central San Diego. Once you've disembarked your flight from Las Vegas to San Diego, it takes approximately 40 minutes to reach the heart of the city in a ride-share or cab.
You can expect the journey to take approximately 2 hours 15 minutes on public transport.
Budget, Hertz and Avis make collecting a McClellan-Palomar Airport rental car quick and easy. These providers are located in or around the terminal and will have you on the road before long.
Generally speaking, the earlier you book, the bigger the savings and variety of vehicles. Secure your ride from CLD once your travel dates are set.

Best time to go to San Diego

May is the quietest month for flights from Las Vegas to San Diego, while July is the busiest. Find the best time to go to San Diego based on whether you want a lively atmosphere or a more laid-back vibe.
The warmest month in San Diego is August, with temperatures ranging between 17ºC (63ºF) and 28ºC (82ºF). Lock in your Las Vegas to San Diego ticket then if that's your idea of comfortable weather.
February sees average temperatures of between 7ºC (45ºF) and 23ºC (73ºF). Look for cheap flights from Las Vegas to San Diego around that time if you'd rather travel in cooler conditions.

More about San Diego

After booking your flight from Las Vegas to San Diego, find a hotel that keeps you close to what you want to see. Make one of these options your base for exploring San Diego:
San Diego Zoo and USS Midway Museum are just two of the top-rated attractions to add to your San Diego must-do list. Keep the adventure rolling by checking out SeaWorld San Diego.

Explore more of United States

San Diego has plenty going for it, but there are so many other corners of United States just waiting to be explored. Around 177 kilometers north-west of San Diego, a visit to Los Angeles will fill your itinerary to the brim. Start with leading attractions like Griffith Observatory, The Broad and La Brea Tar Pits & Museum.
If there's time to check out another side of United States, consider Phoenix, roughly 483 kilometers east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are among the biggest draws.