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Cheap flights from San Antonio to San Diego from $47

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 12/30. 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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Cheap round-trip flights

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Frontier Logo
3:12 pm - 10:25 pmSAT-SAN
9h 13m1 stop
Frontier Logo
6:41 am - 6:45 pmSAN-SAT
10h 04m1 stop
$110Frontier
Find Deal
Sat, Nov 15 - Wed, Nov 19
Frontier Logo
9:25 pm - 8:07 pmSAT-SAN
24h 42m1 stop
Frontier Logo
4:47 pm - 12:17 amSAN-SAT
29h 30m1 stop
$149Frontier
Find Deal
Fri, Dec 12 - Fri, Dec 19
Frontier Logo
1:51 pm - 12:38 pmSAT-SAN
24h 47m1 stop
Frontier Logo
6:25 am - 6:59 pmSAN-SAT
10h 34m1 stop
$152Frontier
Find Deal
Fri, Jan 9 - Thu, Jan 15
Frontier Logo
9:25 pm - 8:07 pmSAT-SAN
24h 42m1 stop
Frontier Logo
4:47 pm - 12:17 amSAN-SAT
29h 30m1 stop
$155Frontier
Find Deal
Fri, Dec 12 - Fri, Dec 19
Frontier Logo
1:51 pm - 12:23 pmSAT-SAN
24h 32m2 stops
Frontier Logo
6:25 am - 6:59 pmSAN-SAT
10h 34m1 stop
$158Frontier
Find Deal
Fri, Jan 9 - Thu, Jan 15
Frontier Logo
10:46 pm - 12:35 pmSAT-SAN
15h 49m1 stop
Frontier Logo
10:57 am - 9:14 amSAN-SAT
20h 17m2 stops
$167Frontier
Find Deal
Thu, Nov 13 - Sat, Nov 15
American Airlines Logo
5:00 am - 8:34 amSAT-SAN
5h 34m1 stop
American Airlines Logo
7:21 am - 5:00 pmSAN-SAT
7h 39m1 stop
$187American Airlines
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Tue, Nov 11 - Fri, Nov 14
Multiple Airlines Logo
6:07 pm - 3:27 pmSAT-SAN
23h 20m2 stops
Multiple Airlines Logo
8:39 am - 5:27 pmSAN-SAT
6h 48m1 stop
$194Multiple Airlines
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Fri, Nov 21 - Mon, Nov 24
American Airlines Logo
6:00 am - 8:47 amSAT-SAN
4h 47m1 stop
American Airlines Logo
4:25 pm - 10:59 pmSAN-SAT
4h 34m1 stop
$253American Airlines
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Mon, Nov 10 - Mon, Nov 10
American Airlines Logo
6:02 am - 8:48 amSAT-SAN
4h 46m1 stop
American Airlines Logo
3:38 pm - 10:59 pmSAN-SAT
5h 21m1 stop
$281American Airlines
Find Deal
Thu, Dec 25 - Thu, Dec 25

Frontier flights from San Antonio to San Diego

Our best Frontier deals on San Antonio to San Diego flight tickets
Frontier
Nov 15
SAT3:12 pmSan Antonio
9h 13m
1 stop
SAN10:25 pmSan Diego
Nov 19
SAN6:41 amSan Diego
10h 04m
1 stop
SAT6:45 pmSan Antonio
$110
Find similar
Frontier
Nov 7
SAT2:09 pmSan Antonio
11h 39m
1 stop
SAN11:48 pmSan Diego
Nov 15
SAN6:41 amSan Diego
5h 36m
1 stop
SAT2:17 pmSan Antonio
$143
Find similar
Frontier
Dec 12
SAT9:25 pmSan Antonio
24h 42m
1 stop
SAN8:07 pmSan Diego
Dec 19
SAN4:47 pmSan Diego
29h 30m
1 stop
SAT12:17 amSan Antonio
$149
Find similar

American Airlines flights from San Antonio to San Diego

Our best American Airlines deals on San Antonio to San Diego flight tickets
American Airlines
Nov 11
SAT5:00 amSan Antonio
5h 34m
1 stop
SAN8:34 amSan Diego
Nov 14
SAN7:21 amSan Diego
7h 39m
1 stop
SAT5:00 pmSan Antonio
$187
Find similar
American Airlines
Nov 5
SAT6:00 amSan Antonio
4h 47m
1 stop
SAN8:47 amSan Diego
Nov 12
SAN6:15 amSan Diego
5h 52m
1 stop
SAT2:07 pmSan Antonio
$230
Find similar
American Airlines
Nov 5
SAT5:00 amSan Antonio
5h 34m
1 stop
SAN8:34 amSan Diego
Nov 9
SAN6:30 amSan Diego
5h 04m
1 stop
SAT1:34 pmSan Antonio
$233
Find similar

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 October 30, 2025.
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

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Sat 11/15

3:12 pm-10:25 pm

1 stop9h 13m

San Diego

Wed 11/19

6:41 am-6:45 pm

1 stop10h 04m

$110

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 12/12

9:25 pm-8:07 pm

1 stop24h 42m

San Diego

Fri 12/19

4:47 pm-12:17 am

1 stop29h 30m

$149

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 1/9

1:51 pm-12:38 pm

1 stop24h 47m

San Diego

Thu 1/15

6:25 am-6:59 pm

1 stop10h 34m

$152

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 12/12

9:25 pm-8:07 pm

1 stop24h 42m

San Diego

Fri 12/19

4:47 pm-12:17 am

1 stop29h 30m

$155

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 1/9

1:51 pm-12:23 pm

2 stops24h 32m

San Diego

Thu 1/15

6:25 am-6:59 pm

1 stop10h 34m

$158

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 11/13

10:46 pm-12:35 pm

1 stop15h 49m

San Diego

Sat 11/15

10:57 am-9:14 am

2 stops20h 17m

$167

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Tue 11/11

5:00 am-8:34 am

1 stop5h 34m

San Diego

Fri 11/14

7:21 am-5:00 pm

1 stop7h 39m

$187

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Fri 11/21

6:07 pm-3:27 pm

2 stops23h 20m

San Diego

Mon 11/24

8:39 am-5:27 pm

1 stop6h 48m

$194

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Mon 11/10

6:00 am-8:47 am

1 stop4h 47m

San Diego

Mon 11/10

4:25 pm-10:59 pm

1 stop4h 34m

$253

San AntonioSan Diego

SAT - SAN

SATSAN

San Antonio

Thu 12/25

6:02 am-8:48 am

1 stop4h 46m

San Diego

Thu 12/25

3:38 pm-10:59 pm

1 stop5h 21m

$281

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 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 August is also very affordable. Most momondo users find prices during this month for around $329.

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 $392. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $561. 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 $425. Flights in the evening 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 $385 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 $318 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 October 2025, prices for San Antonio to San Diego flights are approximately 27% 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

$189

Fastest flight time

3h 00m

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 $189. The best round-trip flight deal from San Antonio to San Diego found on momondo in the last 72 hours is $313.
The fastest flight from San Antonio to San Diego takes 3h 00m
Direct flights go from San Antonio to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

  • 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 4h 46m.

  • 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 $94Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
FrontierPriceFrom $112Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $227Free CancellationRating
8.0
11,214 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $236Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $236Free CancellationRating
7.9
7,993 reviews
Search Delta flights
American AirlinesPriceFrom $270Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
SouthwestPriceFrom $297Free CancellationRating
8.0
4,242 reviews
Search Southwest flights

  • Southwest Flights From San Antonio to San Diego

    Southwest flies from San Antonio to San Diego around 3 times per week, with 4,242 momondo users rating the airline 8.0/10. The cheapest Southwest deal from San Antonio to San Diego in the last 72 hours was $297 (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
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
Poway
Borrego Springs
San Ysidro
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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