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$31+ Cheap flights from Las Vegas to San Diego (LAS - SAN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — SAN
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to San Diego are usually found in February or April, booked 84 days in advance, depart on a Friday or Saturday and return on a Sunday

Cheap flight deals from Las Vegas to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 15, 2025.

Round-trip from

$48
(Frontier)

One-way from

$31
(Frontier)

Popular in

July

Cheapest in

February

Average price

$96

Good round-trip deal

$60 or less

Good one-way deal

$48 or less
From Las Vegas Harry Reid Intl to San Diego
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One-way flight from Las Vegas Harry Reid Intl to San Diego
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Highest demand for flights based on searches. 6% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Las Vegas Harry Reid Intl to San Diego.
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Price to beat on a one-way flight from Las Vegas Harry Reid Intl to San Diego.
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Find flight deals from Las Vegas to San Diego

Cheapest flights from Las Vegas to San Diego
Explore the most affordable flight options available from Las Vegas to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:01 pmLAS - SAN
Nonstop1h 16mFrontier
Sun 9/286:25 amSAN - LAS
Nonstop1h 29mFrontier
Deal found 9/15$48
This Frontier deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:20 amLAS - SAN
Nonstop1h 28mFrontier
Sun 9/286:25 amSAN - LAS
Nonstop1h 29mFrontier
Deal found 9/15$49
This Frontier deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/179:46 pmLAS - SAN
Nonstop1h 18mFrontier
Sun 10/196:25 amSAN - LAS
Nonstop1h 27mFrontier
Deal found 9/13$53
This Flightnetwork deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2510:20 amLAS - SAN
Nonstop1h 28mMultiple Airlines
Sun 9/286:15 amSAN - LAS
Nonstop1h 25mMultiple Airlines
Deal found 9/14$54
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:00 pmLAS - SAN
Nonstop1h 24mFrontier
Wed 10/18:00 amSAN - LAS
Nonstop1h 31mFrontier
Deal found 9/14$58
This Priceline deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2610:01 pmLAS - SAN
Nonstop1h 16mMultiple Airlines
Sat 9/276:15 amSAN - LAS
Nonstop1h 25mMultiple Airlines
Deal found 9/13$59
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/275:05 pmLAS - SAN
Nonstop1h 25mFrontier
Sun 10/196:25 amSAN - LAS
Nonstop1h 27mFrontier
Deal found 9/14$60
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1810:14 pmLAS - SAN
Nonstop1h 20mMultiple Airlines
Tue 9/238:00 amSAN - LAS
Nonstop1h 31mMultiple Airlines
Deal found 9/13$61
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:25 pmLAS - SAN
Nonstop1h 26mFrontier
Sun 10/126:25 amSAN - LAS
Nonstop1h 27mFrontier
Deal found 9/13$63
This Flightnetwork deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3011:11 amLAS - SAN
Nonstop1h 24mFrontier
Thu 11/63:59 pmSAN - LAS
Nonstop1h 29mFrontier
Deal found 9/15$65
This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1710:14 pmLAS - SAN
Nonstop1h 20mSpirit Airlines
Mon 9/226:15 amSAN - LAS
Nonstop1h 25mSpirit Airlines
Deal found 9/13$66

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Las Vegas to San Diego that are best for you.

Fly from

Las Vegas

Fly to

San Diego

Route

Depart

Return

Price

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Fri 10/3

10:01 pm-11:17 pm

Nonstop1h 16m

San Diego

Sun 10/5

12:33 pm-2:02 pm

Nonstop1h 29m

$48

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Wed 10/22

8:00 pm-9:20 pm

Nonstop1h 20m

San Diego

Mon 10/27

6:25 am-7:52 am

Nonstop1h 27m

$53

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Sat 11/8

6:25 am-7:35 am

Nonstop1h 10m

San Diego

Sat 11/15

5:25 pm-6:50 pm

Nonstop1h 25m

$83

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Thu 10/2

8:25 am-9:43 am

Nonstop1h 18m

San Diego

Sun 10/5

7:46 pm-11:14 pm

1 stop3h 28m

$91

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Mon 12/8

7:40 pm-8:50 pm

Nonstop1h 10m

San Diego

Wed 12/17

9:55 am-11:20 am

Nonstop1h 25m

$97

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Wed 11/19

8:50 am-10:11 am

Nonstop1h 21m

San Diego

Thu 12/18

6:33 pm-8:02 pm

Nonstop1h 29m

$97

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Tue 12/2

8:50 am-10:09 am

Nonstop1h 19m

San Diego

Tue 12/2

6:33 pm-8:02 pm

Nonstop1h 29m

$97

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Wed 10/15

8:50 am-10:16 am

Nonstop1h 26m

San Diego

Wed 10/15

6:29 pm-7:58 pm

Nonstop1h 29m

$97

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Thu 10/2

5:37 pm-10:59 pm

1 stop5h 22m

San Diego

Wed 10/8

3:59 pm-8:13 pm

1 stop4h 14m

$99

Las VegasSan Diego

LAS - SAN

LASSAN

Las Vegas Harry Reid Intl

Wed 10/15

2:05 pm-6:40 pm

1 stop4h 35m

$42

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/12

Showing 1-10 of 20 results
1
2

The best insider tips for Las Vegas to San Diego flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Las Vegas to San Diego trip
Airlines
Spirit Airlines

Spirit’s Big Front Seats offer 11 inches more legroom, ideal for short flights.


Spirit’s Saver$ Club offers rotating deals and discounts on luggage and seats.

Read more about Spirit Airlinesby Daniel Scheffler
Frontier

Frontier’s UpFront Plus seats offer extra comfort with a guaranteed empty middle seat.


Early check-in helps secure your place as Frontier overbooks flights frequently.

Read more about Frontierby Marisa Garcia
Southwest

Southwest offers free snacks and non-alcoholic beverages, enhancing your short flight experience.


Enjoy free messaging and high-speed Wi-Fi for a fee on Southwest flights.

Read more about Southwestby Marisa Garcia
Alaska Airlines

Alaska’s Premium Class offers extra legroom and free cocktails, ideal for comfort.


Alaska’s Wi-Fi is a flat fee, allowing work during flights.

Read more about Alaska Airlinesby Robert Schrader
Airports
LAS

LAS offers a self-service TSA screening trial, simplifying security with video instructions for travelers to follow before x-ray scanning.

Read more about LASby Ramsey Qubein
SAN

For a quick ride to downtown, use the free San Diego Flyer shuttle connecting SAN to the Old Town Transit Center every 20-30 minutes.

Read more about SANby Blane Bachelor
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Marisa Garcia

Marisa Garcia

Expert on Frontier and Southwest

Marisa Garcia

Marisa Garcia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Read more
Robert Schrader

Robert Schrader

Expert on Alaska Airlines

Robert Schrader

Robert Schrader

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Read more
Blane Bachelor

Blane Bachelor

Expert on SAN

Blane Bachelor

Blane Bachelor

Blane Bachelor is a journalist and editor specializing in travel and aviation who writes regularly for top global outlets. Born and raised in Florida, Blane has worked and lived in four countries, including the Netherlands, where she’s currently based with her family. Her favorite way to get to know a new destination is by running or riding a bike around town – or hearing a spooky ghost story about local history. She will always choose the window seat.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Las Vegas to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from Las Vegas with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Las Vegas to San Diego

How far ahead should I book a flight from Las Vegas to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from Las Vegas to San Diego. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Las Vegas to San Diego, you should look to book at least 83 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Las Vegas to San Diego?

Currently, August is the cheapest month in which you can book a flight from Las Vegas to San Diego (average of $286). Flying from Las Vegas to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LAS to SAN?

Find hourly flight availability from Las Vegas to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

It’s typically best to fly out from Las Vegas to San Diego in the afternoon. Doing so could potentially save you 36% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Las Vegas to San Diego?

Use this chart to determine the cheapest time to fly round-trip from Las Vegas to San Diego. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Las Vegas to San Diego flight should consider departing on Saturday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated September 15, 2025.
Read through reviews of airlines operating flights from Las Vegas to San Diego, such as Alaska Airlines, Southwest, and Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,242 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,954 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,015 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,172 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Food

7.1

Boarding

8.1

Overall

8.0

Comfort

7.8

Crew

8.5

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Las Vegas to San Diego?

    Booking a flight from Las Vegas Harry Reid Intl (LAS) to San Diego (SAN) is your only option if you wish to fly from Las Vegas to San Diego. On a typical day, there are 19 flights from Harry Reid Intl to San Diego, all of which are around 1h 05m for a nonstop flight. You can also purchase a plane ticket from 6 airlines when you book a flight from Harry Reid Intl to San Diego.

  • How popular is this Las Vegas to San Diego flight route?

    Within the past month, 128 users have taken a look at flights from Las Vegas Harry Reid Intl to San Diego.

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

    A quick flight from Las Vegas to San Diego can take about 1h 10m. Frontier provides one of the quickest options available for as low as $83. Airlines will cover a distance of 259 mi. Generally, flights for this route are nonstop.

  • What are the cheapest airlines flying from Las Vegas to San Diego round-trip?

    Cheapflights users have booked flights from Las Vegas to San Diego round-trip from $38. Other airlines that can offer you cheap pricing are Spirit Airlines, from $39, and Hawaiian Airlines, from $48. You may be able to fly from Las Vegas to San Diego for 54% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Las Vegas to San Diego?

    The top 3 most reliable airlines when flying from Las Vegas to San Diego are Korean Air (90%), Delta (84%) and KLM (81%).

  • What are the cheapest flights from Las Vegas to San Diego?

    The cheapest flight price from Las Vegas to San Diego is $30. On average you can expect to pay $162. The most popular route, (Las Vegas Harry Reid Intl - San Diego), can usually be booked for $49.

  • Can I find deals for flights from Las Vegas to San Diego that include hotel bookings?

    Yes. In addition to deals on Las Vegas to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Las Vegas to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to San Diego.

  • Can I find deals for business class flights from Las Vegas to San Diego?

    Yes. Cheapflights offers flight deals from Las Vegas to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Las Vegas to San Diego?

    Currently, August is the cheapest month in which you can book a flight from Las Vegas to San Diego (average of $286). Flying from Las Vegas to San Diego in March is currently the most expensive (average of $366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
El Cajon
Chula Vista
La Mesa
Poway
Lemon Grove
Coronado
Imperial Beach
National City
Alpine

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Alternative routes for Las Vegas to San Diego

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Top 6 airlines flying from Las Vegas to San Diego

Discover the top 6 airlines that operate flights from Las Vegas to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$38Average$77FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$39Average$67FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$48Average$117FlexibilityNo cancel feeOn-time85%
DeltaCheapest$68Average$129FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$82Average$119FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$82Average$157FlexibilityNo cancel feeOn-time75%

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