$45 Cheap Flights from Los Angeles (LAX) to San Diego (SAN)

View $45 flight on Wed, Oct 1, 2025Opens in a new window

Popular airlines from Los Angeles Intl. (LAX) to San Diego Intl. Airport (SAN)

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Today's featured flight deals from Los Angeles Intl. (LAX) to San Diego Intl. Airport (SAN)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Los Angeles to San Diego (LAX-SAN)

Prices were available within the past 7 days and start at $45 for one-way flights and $100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Tue, Sep 23 - Tue, Sep 30
LAX
Los Angeles
SAN
San Diego
$100 Roundtrip, found 1 day ago
$100
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Tue, Sep 23 from Los Angeles to San Diego, returning Tue, Sep 30, priced at $100 found 1 day ago
Spirit Airlines
Wed, Oct 1 - Sat, Oct 4
LAX
Los Angeles
SAN
San Diego
$105 Roundtrip, found 20 hours ago
$105
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Wed, Oct 1 from Los Angeles to San Diego, returning Sat, Oct 4, priced at $105 found 20 hours ago
Spirit Airlines
Wed, Oct 1 - Sat, Oct 4
LAX
Los Angeles
SAN
San Diego
$106 Roundtrip, found 20 hours ago
$106
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Wed, Oct 1 from Los Angeles to San Diego, returning Sat, Oct 4, priced at $106 found 20 hours ago
Spirit Airlines
Wed, Oct 1 - Sat, Oct 4
LAX
Los Angeles
SAN
San Diego
$112 Roundtrip, found 20 hours ago
$112
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Wed, Oct 1 from Los Angeles to San Diego, returning Sat, Oct 4, priced at $112 found 20 hours ago
Spirit Airlines
Wed, Oct 1 - Sat, Oct 4
LAX
Los Angeles
SAN
San Diego
$113 Roundtrip, found 20 hours ago
$113
Roundtrip
found 20 hours ago
Select Spirit Airlines flight, departing Wed, Oct 1 from Los Angeles to San Diego, returning Sat, Oct 4, priced at $113 found 20 hours ago
Spirit Airlines
Mon, Sep 29 - Tue, Sep 30
LAX
Los Angeles
SAN
San Diego
$115 Roundtrip, found 1 hour ago
$115
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Mon, Sep 29 from Los Angeles to San Diego, returning Tue, Sep 30, priced at $115 found 1 hour ago
Spirit Airlines
Wed, Oct 1 - Thu, Oct 2
LAX
Los Angeles
SAN
San Diego
$116 Roundtrip, found 1 day ago
$116
Roundtrip
found 1 day ago
Select Spirit Airlines flight, departing Wed, Oct 1 from Los Angeles to San Diego, returning Thu, Oct 2, priced at $116 found 1 day ago
Delta
Sat, Oct 25 - Mon, Oct 27
LAX
Los Angeles
SAN
San Diego
$179 Roundtrip, just found
$179
Roundtrip
just found
Select Delta flight, departing Sat, Oct 25 from Los Angeles to San Diego, returning Mon, Oct 27, priced at $179 just found
Southwest Airlines
Sat, Nov 8 - Tue, Nov 11
LAX
Los Angeles
SAN
San Diego
$301 Roundtrip, found 5 hours ago
$301
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Sat, Nov 8 from Los Angeles to San Diego, returning Tue, Nov 11, priced at $301 found 5 hours ago
JetBlue Airways
Mon, Oct 27 - Fri, Oct 31
LAX
Los Angeles
SAN
San Diego
$359 Roundtrip, found 1 day ago
$359
Roundtrip
found 1 day ago
Select JetBlue Airways flight, departing Mon, Oct 27 from Los Angeles to San Diego, returning Fri, Oct 31, priced at $359 found 1 day ago

Find the cheapest month to fly from Los Angeles (LAX) to San Diego (SAN)

February is typically the cheapest month to fly

From $70 - $269 per traveler.
0
Flights from Los Angeles (LAX) to San Diego (SAN)
Origin airport
Los Angeles Intl.
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$100
Distance
108 mi

Los Angeles to San Diego Flights

The cheapest times to fly from Los Angeles 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 Los Angeles to San Diego are during the month of September. You can find some of the cheapest flights from Los Angeles to San Diego with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Los Angeles to San Diego

Sunday is one of the best days to book for cheap flights from Los Angeles 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 Los Angeles 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 Los Angeles to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $45 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 Los Angeles 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 Los Angeles 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 Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) cost?
Secure a cheap one-way flight from $45 or cheap return flight from $100 from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
September is the cheapest month to fly from LAX to SAN. Timing your trip outside of the busy season is often the key to finding better fares.
Which airlines fly direct from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
When setting off from Los Angeles Intl. Airport (LAX), you can take a nonstop flight to San Diego Intl. Airport (SAN) with United Airlines.
What is the cheapest airline that flies from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
While prices can vary depending on your travel dates, United Airlines and Delta Air Lines are popular choices for flights between Los Angeles Intl. Airport (LAX) and San Diego Intl. Airport (SAN). You can also compare carriers on Expedia and use the "Sort by" filter to find the lowest-priced ticket for your LAX to SAN flight.
How many flights per day from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
With an average of 6 nonstop flights departing from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) every day, you'll be soaring through the skies in no time.
What are the most popular departure times for flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
Flights between LAX and SAN are their busiest at 8 AM. If you're after a less crowded experience and possibly cheaper tickets, choose a time when demand is lower.
What day of the week has the most flights from LAX to SAN?
Wednesday has the most flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN). Consider traveling on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
The earliest flight departing from Los Angeles Intl. Airport (LAX) is at around 8:27AM UTC-8. Board this plane and you'll land at San Diego Intl. Airport (SAN) at approximately 9:32AM UTC-8. The total flight duration is 1h 5m.
How long does it take to fly from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
Flights from LAX to SAN have an average travel time of 1 hour and 2 minutes. The distance between the two airports is 110 mi.
What airline has the least delays from LAX to SAN?
Aeromexico has the strongest track record for on-time direct flights from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN), with an on-time rating of 90%. Use the Expedia App to look up your flight status before you jet off and get immediate updates about any changes.
What is the best time to fly from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
To avoid possible delays on the Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) route, aim to travel before 3 PM. Later departures are 22% more likely to be canceled.**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 Los Angeles Intl. Airport (LAX)?
San Diego Intl. Airport (SAN) is the only airport in San Diego with direct flights from Los Angeles Intl. Airport (LAX). Browse the available options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN) last-minute?
Booking your ticket from LAX to SAN shortly before your getaway is typically more expensive. However, if you're flexible with your departure dates and times, you could score a cheap last-minute fare.
Is it cheaper to book a LAX to SAN flight and hotel package?
Securing a LAX to SAN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Choose from our extensive range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Los Angeles Intl. Airport (LAX) to San Diego Intl. Airport (SAN)?
If you booked your LAX to SAN flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal for further details.

Explore a world of travel with Expedia

*Available to One Key members.