$25 Cheap Flights from Las Vegas (LAS) to San Diego (SAN)

View $25 flight on Wed, Jul 23, 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)

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

Prices were available within the past 7 days and start at $25 for one-way flights and $49 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Jul 22 - Wed, Jul 23
LAS
Las Vegas
SAN
San Diego
$49 Roundtrip, just found
$49
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Jul 22 from Las Vegas to San Diego, returning Wed, Jul 23, priced at $49 just found
Spirit Airlines
Tue, Jul 22 - Wed, Jul 23
LAS
Las Vegas
SAN
San Diego
$55 Roundtrip, just found
$55
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Jul 22 from Las Vegas to San Diego, returning Wed, Jul 23, priced at $55 just found
Spirit Airlines
Wed, Jul 9 - Thu, Jul 17
LAS
Las Vegas
SAN
San Diego
$56 Roundtrip, just found
$56
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Jul 9 from Las Vegas to San Diego, returning Thu, Jul 17, priced at $56 just found
Frontier Airlines
Sat, Jul 26 - Tue, Jul 29
LAS
Las Vegas
SAN
San Diego
$59 Roundtrip, just found
$59
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jul 26 from Las Vegas to San Diego, returning Tue, Jul 29, priced at $59 just found
Frontier Airlines
Sat, Jul 26 - Tue, Jul 29
LAS
Las Vegas
SAN
San Diego
$59 Roundtrip, just found
$59
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Jul 26 from Las Vegas to San Diego, returning Tue, Jul 29, priced at $59 just found
Frontier Airlines
Mon, Jul 21 - Wed, Jul 23
LAS
Las Vegas
SAN
San Diego
$60 Roundtrip, found 4 hours ago
$60
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Mon, Jul 21 from Las Vegas to San Diego, returning Wed, Jul 23, priced at $60 found 4 hours ago
Frontier Airlines
Wed, Jul 9 - Thu, Jul 17
LAS
Las Vegas
SAN
San Diego
$61 Roundtrip, just found
$61
Roundtrip
just found
Select Frontier Airlines flight, departing Wed, Jul 9 from Las Vegas to San Diego, returning Thu, Jul 17, priced at $61 just found
Southwest Airlines
Thu, Oct 16 - Tue, Oct 21
LAS
Las Vegas
SAN
San Diego
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Southwest Airlines flight, departing Thu, Oct 16 from Las Vegas to San Diego, returning Tue, Oct 21, priced at $97 just found
Delta
Fri, Oct 17 - Tue, Oct 21
LAS
Las Vegas
SAN
San Diego
$97 Roundtrip, just found
$97
Roundtrip
just found
Select Delta flight, departing Fri, Oct 17 from Las Vegas to San Diego, returning Tue, Oct 21, priced at $97 just found
Hawaiian Airlines
Fri, Jul 18 - Fri, Jul 25
LAS
Las Vegas
SAN
San Diego
$117 Roundtrip, found 2 hours ago
$117
Roundtrip
found 2 hours ago
Select Hawaiian Airlines flight, departing Fri, Jul 18 from Las Vegas to San Diego, returning Fri, Jul 25, priced at $117 found 2 hours ago

Find the cheapest month to fly from Las Vegas (LAS) to San Diego (SAN)

August is typically the cheapest month to fly

From $39 - $73 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Diego

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to General Abelardo L. Rodriguez Intl. TIJ. Average driving time to city center is 26 minutes. Flights from $349
TIJ
General Abelardo L. Rodriguez Intl.
Average driving time to city center26 min
Flights from $349
Select flight to McClellan-Palomar CLD. Average driving time to city center is 38 minutes. Flights from $244
CLD
McClellan-Palomar
Average driving time to city center38 min
Flights from $244
Flights from Las Vegas (LAS) to San Diego (SAN)
Origin airport
Harry Reid Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$49
Distance
259 mi
Average flight time
1 hour 12 mins

Las Vegas to San Diego Flights

The cheapest times to fly from Las Vegas to San Diego

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 Las Vegas to San Diego are during the month of July. You can find some of the cheapest flights from Las Vegas to San Diego with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Las Vegas to San Diego: 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 Las Vegas to San Diego

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 Las Vegas to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $25 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 Las Vegas to San Diego 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 Las Vegas to San Diego 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.

 

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN) cost?
You can land cheap return fares from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN) starting at $49. Reserve your seat and start your adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Spirit Airlines flight leaving LAS on July 17 2025 and touching down at SAN. The price was last updated on July 1 2025 and has not changed since.
What is the cheapest month to fly from LAS to SAN?
Fly straight from LAS to SAN in July to take advantage of cheaper tickets. You can find a one-way Spirit Airlines flight for $25 leaving on July 19 2025. This price is based on the cheapest direct flight found on Expedia for this route in the next 330 days. The price was last updated on July 1 2025 and remains unchanged.
Which airlines fly direct from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
Pick from 5 carriers that operate direct flights from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN). They are:

  • Southwest Airlines
  • Spirit Airlines
  • Delta Air Lines
  • Alaska Airlines
  • Frontier Airlines

What is the cheapest airline that flies from LAS to SAN?
At the moment, the cheapest carrier operating one-way flights from LAS to SAN is Spirit Airlines. You can take off on this route from $25. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LAS on July 19 2025. Prices were last updated on July 1 2025 and have not changed since.
How many flights per day from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
Every day on average, 20 nonstop flights take off from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN). Choose the departure that best suits your travel plans.
What are the most popular departure times for flights from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
The 7 AM departures from LAS to SAN are the busiest. These flights can come with a higher price due to their popularity. If you're hoping to save money, pick a less crowded time to fly.
What day of the week has the most flights from LAS to SAN?
Depart on a Friday if you're looking for the best selection of flights from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN).
What is the earliest flight from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
Harry Reid Intl. Airport (LAS)'s earliest flight to San Diego Intl. Airport (SAN) leaves at approximately 6:30AM UTC-8. With a total travel time of 1h 10m, you'll arrive at around 7:40AM UTC-8.
How long does it take to fly from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
The average flight duration from LAS to SAN is 1 hour and 14 minutes, covering a distance of 260 mi.
What airline has the least delays from LAS to SAN?
With 80% of journeys typically landing on time, Alaska Airlines has the best on-time performance for nonstop flights from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN). To keep track of your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
To touch down at San Diego Intl. Airport (SAN) on schedule, select a flight that leaves Harry Reid Intl. Airport (LAS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for San Diego from Harry Reid Intl. Airport (LAS)?
If you're boarding a direct flight from Harry Reid Intl. Airport (LAS) to San Diego, San Diego Intl. Airport (SAN) is the only airport you can land at.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN) last-minute?
Booking your flight from LAS to SAN right before your trip is typically more expensive. However, if there's some wiggle room with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a LAS to SAN flight and hotel package?
You can save money by securing a LAS to SAN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, you can add extras such as activities, tours and car rentals.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to San Diego Intl. Airport (SAN)?
You can usually cancel or reschedule your LAS to SAN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.