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Cheap flights from Las Vegas to San Diego from $20

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to San Diego departing on 5/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Las Vegas to San Diego

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Las Vegas to San Diego.
9:06 am - 10:25 amLAS-SAN
1h 19mnonstop
9:08 pm - 10:30 pmSAN-LAS
1h 22mnonstop
$37Spirit Airlines
Find Deal
Sat, Apr 12 - Sat, Apr 12
6:15 am - 7:34 amLAS-SAN
1h 19mnonstop
9:08 pm - 10:30 pmSAN-LAS
1h 22mnonstop
$39Spirit Airlines
Find Deal
Wed, Apr 16 - Wed, Apr 16
11:25 pm - 12:42 amLAS-SAN
1h 17mnonstop
6:15 am - 7:40 amSAN-LAS
1h 25mnonstop
$41Spirit Airlines
Find Deal
Fri, Apr 11 - Sun, Apr 13
6:15 am - 7:34 amLAS-SAN
1h 19mnonstop
6:15 am - 7:40 amSAN-LAS
1h 25mnonstop
$43Spirit Airlines
Find Deal
Thu, Apr 24 - Sun, Apr 27
5:51 pm - 7:16 pmLAS-SAN
1h 25mnonstop
9:46 pm - 11:11 pmSAN-LAS
1h 25mnonstop
$73Frontier
Find Deal
Thu, Apr 3 - Thu, Apr 3
4:56 pm - 6:16 pmLAS-SAN
1h 20mnonstop
12:50 pm - 2:20 pmSAN-LAS
1h 30mnonstop
$78Frontier
Find Deal
Fri, Jun 13 - Sun, Jun 15
8:50 am - 12:55 pmLAS-SAN
4h 05m1 stop
6:30 am - 10:25 amSAN-LAS
3h 55m1 stop
$116Southwest
Find Deal
Wed, Apr 16 - Thu, Apr 17
7:25 pm - 11:00 pmLAS-SAN
3h 35m1 stop
6:00 pm - 9:55 pmSAN-LAS
3h 55m1 stop
$136Southwest
Find Deal
Fri, Apr 11 - Tue, Apr 15
4:14 pm - 5:35 pmLAS-SAN
1h 21mnonstop
9:59 am - 11:28 amSAN-LAS
1h 29mnonstop
$137Delta
Find Deal
Thu, Apr 10 - Sun, Apr 13
9:21 pm - 5:44 pmLAS-SAN
20h 23m1 stop
8:10 am - 6:27 pmSAN-LAS
10h 17m2 stops
$218Alaska Airlines
Find Deal
Mon, Apr 14 - Wed, Apr 16

Spirit Airlines flights from Las Vegas to San Diego

Our best Spirit Airlines deals on Las Vegas to San Diego flight tickets
Spirit Airlines
Apr 12
LAS9:06 amLas Vegas Harry Reid Intl
1h 19m
SAN10:25 amSan Diego
Apr 12
SAN9:08 pmSan Diego
1h 22m
LAS10:30 pmLas Vegas Harry Reid Intl
Spirit Airlines
Apr 16
LAS6:15 amLas Vegas Harry Reid Intl
1h 19m
SAN7:34 amSan Diego
Apr 16
SAN9:08 pmSan Diego
1h 22m
LAS10:30 pmLas Vegas Harry Reid Intl
Spirit Airlines
Apr 11
LAS11:25 pmLas Vegas Harry Reid Intl
1h 17m
SAN12:42 amSan Diego
Apr 13
SAN6:15 amSan Diego
1h 25m
LAS7:40 amLas Vegas Harry Reid Intl

Frontier flights from Las Vegas to San Diego

Our best Frontier deals on Las Vegas to San Diego flight tickets
Frontier
Apr 3
LAS5:51 pmLas Vegas Harry Reid Intl
1h 25m
SAN7:16 pmSan Diego
Apr 3
SAN9:46 pmSan Diego
1h 25m
LAS11:11 pmLas Vegas Harry Reid Intl
Frontier
Jun 13
LAS4:56 pmLas Vegas Harry Reid Intl
1h 20m
SAN6:16 pmSan Diego
Jun 15
SAN12:50 pmSan Diego
1h 30m
LAS2:20 pmLas Vegas Harry Reid Intl
Frontier
Apr 10
LAS5:51 pmLas Vegas Harry Reid Intl
1h 25m
SAN7:16 pmSan Diego
Apr 13
SAN9:46 pmSan Diego
1h 25m
LAS11:11 pmLas Vegas Harry Reid Intl

See travel insights to San Diego from

How to get the cheapest flight ticket from Las Vegas to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of July, then departing from Las Vegas during the month June is also very affordable. Most momondo users find prices during this month for around $68.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Las Vegas to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $78. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $122. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the afternoon when flights can be purchased for as low as $76. Flights in the evening are often more expensive with an average ticket price of $91.

What is the cheapest Las Vegas Harry Reid Intl to San Diego flight route?

Fly from Las Vegas Harry Reid Intl to San Diego for the best Las Vegas Harry Reid Intl - San Diego flight prices

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Las Vegas when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $76 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Las Vegas for as low as $49 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to San Diego flights?

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to San Diego flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Las Vegas to San Diego flight prices changed over time?

As of March 2025, prices for Las Vegas to San Diego flights are approximately 11% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to San Diego

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to San Diego according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to San Diego (LAS to SAN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to San Diego

Best Price Found

$20

Fastest flight time

1h 11m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Las Vegas in the past 72 hours is $20. The best round-trip flight deal from Las Vegas to San Diego found on momondo in the last 72 hours is $37.
The fastest flight from Las Vegas to San Diego takes 1h 11m
Direct flights go from Las Vegas to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is Las Vegas Harry Reid Intl to San Diego by plane?

    The straight-line distance from Las Vegas Harry Reid Intl to San Diego is 265.1 mi. 1h 13m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to San Diego Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to San Diego Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to San Diego Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Las Vegas Harry Reid Intl Airport to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Las Vegas to San Diego?

  • What is the most popular airline from Las Vegas to San Diego?


Best airlines flying from Las Vegas to San Diego

Compare and see reviews for airlines that fly from Las Vegas to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $37Free CancellationRating
6.0
3,273 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $38Free CancellationRating
6.3
7,878 reviews
Search Spirit Airlines flights
DeltaPriceFrom $68Free CancellationRating
8.0
7,888 reviews
Search Delta flights
Alaska AirlinesPriceFrom $82Free CancellationRating
8.0
9,782 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $85Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
  • Delta Flights From Las Vegas to San Diego

    The lowest priced Delta flight from Las Vegas to San Diego from the last 72 hours was $68. Generally, Delta has 21 flights on this route every week with an average price of $157. Delta is rated 8.0/10 by our users.

  • Alaska Airlines Flights From Las Vegas to San Diego

    $82 is the best Alaska Airlines flight deal from Las Vegas to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $177, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 9,785 user reviews) flies into San Diego from Las Vegas 23 times in an average week so prices can vary.


Traveling to a place near San Diego?

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

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to San Diego?

It is quick and easy to find Las Vegas to San Diego flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Diego that suits you.

Can I find flights from Las Vegas to San Diego with flexible booking policies on momondo?

Yes. All flights to San Diego from Las Vegas on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Las Vegas to San Diego?

momondo helps you find the best flight between Las Vegas and San Diego by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Las Vegas to San Diego right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Las Vegas to San Diego now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to San Diego and let you know when they change.


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