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Cheap flights from San Antonio to San Diego from $56

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to San Diego departing on 9/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Spirit Airlines Logo
7:52 pm - 11:06 pmSAT-SAN
5h 14m1 stop
Spirit Airlines Logo
6:15 am - 6:36 pmSAN-SAT
10h 21m1 stop
$147Spirit Airlines
Find Deal
Mon, Aug 4 - Thu, Aug 7
American Airlines Logo
3:10 pm - 7:38 pmSAT-SAN
6h 28m1 stop
American Airlines Logo
1:52 pm - 10:59 pmSAN-SAT
7h 07m1 stop
$159American Airlines
Find Deal
Wed, Aug 6 - Tue, Aug 12
Spirit Airlines Logo
12:36 pm - 11:45 pmSAT-SAN
13h 09m1 stop
Spirit Airlines Logo
1:32 pm - 8:37 pmSAN-SAT
5h 05m1 stop
$167Spirit Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
Spirit Airlines Logo
7:52 pm - 11:06 pmSAT-SAN
5h 14m1 stop
Spirit Airlines Logo
6:15 am - 6:36 pmSAN-SAT
10h 21m1 stop
$169Spirit Airlines
Find Deal
Tue, Jul 22 - Thu, Jul 24
Spirit Airlines Logo
9:32 pm - 7:21 amSAT-SAN
11h 49m1 stop
Spirit Airlines Logo
6:15 am - 8:37 pmSAN-SAT
12h 22m1 stop
$171Spirit Airlines
Find Deal
Fri, Oct 3 - Sun, Oct 5
 Logo
12:36 pm - 6:10 pmSAT-SAN
7h 34m1 stop
 Logo
8:00 am - 3:50 pmSAN-SAT
5h 50m1 stop
Thu, Sep 4 - Sat, Sep 6
Frontier Logo
6:59 pm - 11:02 pmSAT-SAN
6h 03m1 stop
Frontier Logo
6:25 am - 6:02 pmSAN-SAT
9h 37m1 stop
$184Frontier
Find Deal
Sat, Jul 26 - Sat, Aug 2
Southwest Logo
8:30 am - 9:20 amSAT-SAN
2h 50mnonstop
Southwest Logo
10:00 am - 3:00 pmSAN-SAT
3h 00mnonstop
$197Southwest
Find Deal
Tue, Aug 5 - Tue, Aug 12
Frontier Logo
8:14 pm - 11:52 pmSAT-SAN
5h 38m1 stop
Frontier Logo
6:25 am - 6:02 pmSAN-SAT
9h 37m1 stop
$199Frontier
Find Deal
Thu, Jul 24 - Tue, Jul 29
Southwest Logo
1:00 pm - 5:25 pmSAT-SAN
6h 25m1 stop
Southwest Logo
10:00 am - 3:00 pmSAN-SAT
3h 00mnonstop
$207Southwest
Find Deal
Tue, Aug 5 - Tue, Aug 12

Spirit Airlines flights from San Antonio to San Diego

Our best Spirit Airlines deals on San Antonio to San Diego flight tickets
Spirit Airlines
Aug 4
SAT7:52 pmSan Antonio
5h 14m
1 stop
SAN11:06 pmSan Diego
Aug 7
SAN6:15 amSan Diego
10h 21m
1 stop
SAT6:36 pmSan Antonio
Spirit Airlines
Sep 25
SAT12:36 pmSan Antonio
13h 09m
1 stop
SAN11:45 pmSan Diego
Sep 29
SAN1:32 pmSan Diego
5h 05m
1 stop
SAT8:37 pmSan Antonio
Spirit Airlines
Jul 22
SAT7:52 pmSan Antonio
5h 14m
1 stop
SAN11:06 pmSan Diego
Jul 24
SAN6:15 amSan Diego
10h 21m
1 stop
SAT6:36 pmSan Antonio

Southwest flights from San Antonio to San Diego

Our best Southwest deals on San Antonio to San Diego flight tickets
Southwest
Aug 5
SAT8:30 amSan Antonio
2h 50m
SAN9:20 amSan Diego
Aug 12
SAN10:00 amSan Diego
3h 00m
SAT3:00 pmSan Antonio
Southwest
Aug 5
SAT1:00 pmSan Antonio
6h 25m
1 stop
SAN5:25 pmSan Diego
Aug 12
SAN10:00 amSan Diego
3h 00m
SAT3:00 pmSan Antonio
Southwest
Aug 27
SAT7:00 pmSan Antonio
5h 05m
1 stop
SAN10:05 pmSan Diego
Aug 30
SAN1:55 pmSan Diego
2h 50m
SAT6:45 pmSan Antonio

See travel insights to San Diego from

How to get the cheapest flight ticket from San Antonio 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 August, then departing from San Antonio during the month September is also very affordable. Most momondo users find prices during this month for around $304.

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

The cheapest day to depart from San Antonio 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 $397. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $487. 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 $430. Flights in the morning are often more expensive with an average ticket price of $447.

What is the cheapest San Antonio to San Diego flight route?

Fly from San Antonio to San Diego for the best San Antonio - 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 San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $371 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from San Antonio for as low as $286 on momondo.

What cabin class options are available on San Antonio to San Diego flights?

There are 1 cabin classes available to choose from on San Antonio 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 San Antonio to San Diego flight prices changed over time?

As of July 2025, prices for San Antonio to San Diego flights are approximately 16% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to San Diego

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

Cheap San Antonio to San Diego (SAT to SAN) flight deals and tips

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

Best Price Found

$56

Fastest flight time

2h 50m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from San Antonio in the past 72 hours is $56. The best round-trip flight deal from San Antonio to San Diego found on momondo in the last 72 hours is $147.
The fastest flight from San Antonio to San Diego takes 2h 50m
Direct flights go from San Antonio to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • How far is San Antonio to San Diego by plane?

    The straight-line distance from San Antonio to San Diego is 1125.3 mi. By plane, this route typically takes 2h 50m.

  • When did momondo last update prices for flights from San Antonio Airport to San Diego Airport?

    Prices for flights from San Antonio Airport to San Diego Airport were last updated today.

  • How many operators does momondo search for flights from San Antonio Airport to San Diego Airport?

  • How old do you have to be to fly from San Antonio Airport to San Diego Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Antonio Airport to San Diego Airport.

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

    The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

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


Best airlines flying from San Antonio to San Diego

Compare and see reviews for airlines that fly from San Antonio to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $108Free CancellationRating
6.3
8,063 reviews
Search Spirit Airlines flights
FrontierPriceFrom $112Free CancellationRating
5.9
3,273 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $166Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $236Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,958 reviews
Search Delta flights
United AirlinesPriceFrom $294Free CancellationRating
7.4
8,844 reviews
Search United Airlines flights
SouthwestPriceFrom $315Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
  • Southwest Flights From San Antonio to San Diego

    Southwest flies from San Antonio to San Diego around 13 times per week, with 4,256 momondo users rating the airline 8.0/10. The cheapest Southwest deal from San Antonio to San Diego in the last 72 hours was $315 (round-trip), much lower than the average airfare cost of $447 for Southwest flights on this route.


Traveling to a place near San Diego?

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

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from San Antonio.

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

All flight searches from San Antonio to San Diego on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to San Diego.

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

Price alerts on flights to San Diego from San Antonio are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Sun 7/13
Sun 7/20

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