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Cheap flights from San Antonio to San Diego from $94

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 10/27. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:39 pm - 8:17 pm
SAT
-
SAN
9h 38m
1 stop
Frontier Logo
4:54 pm - 7:25 pm
SAN
-
SAT
24h 31m
1 stop
$260Frontier
Thu, Oct 1 - Sun, Oct 4
Frontier Logo
12:39 pm - 8:17 pm
SAT
-
SAN
9h 38m
1 stop
Frontier Logo
4:54 pm - 7:25 pm
SAN
-
SAT
24h 31m
1 stop
$260Frontier
Thu, Oct 1 - Sun, Oct 4
Southwest Logo
7:40 pm - 10:05 pm
SAT
-
SAN
4h 25m
1 stop
Southwest Logo
5:40 pm - 10:20 pm
SAN
-
SAT
2h 40mnonstop
$267Southwest
Tue, Oct 20 - Wed, Oct 28
Southwest Logo
6:50 am - 7:40 am
SAT
-
SAN
2h 50mnonstop
Southwest Logo
6:05 pm - 10:50 pm
SAN
-
SAT
2h 45mnonstop
$267Southwest
Thu, Aug 20 - Sat, Aug 22
American Airlines Logo
7:00 am - 1:07 pm
SAT
-
SAN
8h 07m
1 stop
American Airlines Logo
1:38 pm - 10:50 pm
SAN
-
SAT
7h 12m
1 stop
$277American Airlines
Tue, Aug 25 - Tue, Sep 1
Delta Logo
7:20 am - 10:10 am
SAT
-
SAN
4h 50m
1 stop
Delta Logo
6:15 am - 1:40 pm
SAN
-
SAT
5h 25m
1 stop
$277Delta
Tue, Sep 8 - Wed, Sep 16
Delta Logo
6:45 am - 12:30 pm
SAT
-
SAN
7h 45m
1 stop
Delta Logo
5:01 pm - 12:31 am
SAN
-
SAT
5h 30m
1 stop
$277Delta
Tue, Sep 8 - Tue, Sep 15
American Airlines Logo
6:00 am - 11:57 am
SAT
-
SAN
7h 57m
1 stop
American Airlines Logo
1:41 pm - 8:57 pm
SAN
-
SAT
5h 16m
1 stop
$287American Airlines
Tue, Aug 18 - Thu, Aug 27
United Airlines Logo
5:30 am - 10:55 am
SAT
-
SAN
7h 25m
1 stop
United Airlines Logo
4:07 pm - 11:57 pm
SAN
-
SAT
5h 50m
1 stop
$327United Airlines
Thu, Aug 27 - Thu, Aug 27
United Airlines Logo
1:17 pm - 5:05 pm
SAT
-
SAN
5h 48m
1 stop
United Airlines Logo
8:45 am - 4:52 pm
SAN
-
SAT
6h 07m
1 stop
$327United Airlines
Wed, Oct 7 - Sat, Oct 10

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Frontier flights from San Antonio to San Diego

Our best Frontier deals on San Antonio to San Diego flight tickets
Frontier
Oct 1
SAT12:39 pmSan Antonio
9h 38m
1 stop
SAN8:17 pmSan Diego
Oct 4
SAN4:54 pmSan Diego
24h 31m
1 stop
SAT7:25 pmSan Antonio
$260
Frontier
Aug 27
SAT8:26 pmSan Antonio
14h 39m
1 stop
SAN9:05 amSan Diego
Aug 31
SAN8:59 pmSan Diego
22h 30m
1 stop
SAT9:29 pmSan Antonio
$261
Frontier
Aug 20
SAT10:24 pmSan Antonio
23h 50m
1 stop
SAN8:14 pmSan Diego
Aug 22
SAN6:25 amSan Diego
11h 06m
1 stop
SAT7:31 pmSan Antonio
$262

Southwest flights from San Antonio to San Diego

Our best Southwest deals on San Antonio to San Diego flight tickets
Southwest
Aug 26
SAT6:00 amSan Antonio
2h 50m
SAN6:50 amSan Diego
Sep 2
SAN1:45 pmSan Diego
6h 10m
1 stop
SAT9:55 pmSan Antonio
$267
Southwest
Aug 27
SAT7:05 pmSan Antonio
2h 50m
SAN7:55 pmSan Diego
Sep 3
SAN7:10 pmSan Diego
2h 45m
SAT11:55 pmSan Antonio
$277
Southwest
Aug 27
SAT5:50 pmSan Antonio
4h 05m
1 stop
SAN7:55 pmSan Diego
Sep 3
SAN7:10 pmSan Diego
2h 45m
SAT11:55 pmSan Antonio
$287

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio 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, momondo users made 832,500 searches. Data last updated July 31, 2026.
Use the filters below to find and compare flights from San Antonio to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 10/1

12:39 pm-8:17 pm

1 stop9h 38m

San Diego

Sun 10/4

4:54 pm-7:25 pm

1 stop24h 31m

$260

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 10/1

12:39 pm-8:17 pm

1 stop9h 38m

San Diego

Sun 10/4

4:54 pm-7:25 pm

1 stop24h 31m

$260

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 10/20

7:40 pm-10:05 pm

1 stop4h 25m

San Diego

Wed 10/28

5:40 pm-10:20 pm

Nonstop2h 40m

$267
Quickest round-trip

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/20

6:50 am-7:40 am

Nonstop2h 50m

San Diego

Sat 8/22

6:05 pm-10:50 pm

Nonstop2h 45m

$267

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 8/25

7:00 am-1:07 pm

1 stop8h 07m

San Diego

Tue 9/1

1:38 pm-10:50 pm

1 stop7h 12m

$277

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 9/8

7:20 am-10:10 am

1 stop4h 50m

San Diego

Wed 9/16

6:15 am-1:40 pm

1 stop5h 25m

$277

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 9/8

6:45 am-12:30 pm

1 stop7h 45m

San Diego

Tue 9/15

5:01 pm-12:31 am

1 stop5h 30m

$277

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 8/18

6:00 am-11:57 am

1 stop7h 57m

San Diego

Thu 8/27

1:41 pm-8:57 pm

1 stop5h 16m

$287

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 8/27

5:30 am-10:55 am

1 stop7h 25m

San Diego

Thu 8/27

4:07 pm-11:57 pm

1 stop5h 50m

$327

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Wed 10/7

1:17 pm-5:05 pm

1 stop5h 48m

San Diego

Sat 10/10

8:45 am-4:52 pm

1 stop6h 07m

$327

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 typical price of a round-trip flight between San Antonio and San Diego?

Prices are currently typical for flights on this route.

Typical prices usually range from $240 to $509.
The lowest price recently found on this route was $260.

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of October, then departing from San Antonio during the month September is also very affordable. Most momondo users find prices during this month for around $365.

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 $428. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $555. 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 $406. Flights in the morning are often more expensive with an average ticket price of $477.

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 from San Antonio 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 $399 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 $306 on momondo.

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

There is only 1 cabin class 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 2026, prices for San Antonio to San Diego flights are approximately 6% cheaper 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

$158

Fastest flight time

2h 45m

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 $158. The best round-trip flight deal from San Antonio to San Diego found on momondo in the last 72 hours is $358.
The fastest flight from San Antonio to San Diego takes 2h 45m
Direct flights go from San Antonio to San Diego every day.
There is 1 airport in San Diego. From San Antonio there are direct flights to San Diego (SAN).
Search flight deals

Frequently asked questions about flying from San Antonio to San Diego

  • 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 45m.

  • 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
FrontierPriceFrom $143Free CancellationRating
5.6
2,746 reviews
Search Frontier flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
10,053 reviews
Search United Airlines flights
DeltaPriceFrom $225Free CancellationRating
7.8
8,494 reviews
Search Delta flights
American AirlinesPriceFrom $231Free CancellationRating
7.1
11,846 reviews
Search American Airlines flights
SouthwestPriceFrom $314Free CancellationRating
8.0
4,226 reviews
Search Southwest flights

  • Southwest Flights From San Antonio to San Diego

    Southwest flies from San Antonio to San Diego around 6 times per week, with 4,226 momondo users rating the airline 8.0/10. The cheapest Southwest deal from San Antonio to San Diego in the last 72 hours was $314 (round-trip), much lower than the average airfare cost of $452 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
Chula Vista
Coronado
El Cajon
Julian
National City
La Mesa
Poway
San Ysidro
Imperial Beach
Santee
Borrego Springs
Lemon Grove
Alpine

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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