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Cheap flights from San Diego to San Antonio 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 Diego to San Antonio departing on 12/31. 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
6:41 am - 2:17 pmSAN-SAT
5h 36m1 stop
Frontier Logo
8:25 pm - 8:24 pmSAT-SAN
25h 59m2 stops
$155Frontier
Find Deal
Sat, Nov 15 - Mon, Nov 17
Frontier Logo
8:00 am - 1:19 pmSAN-SAT
27h 19m2 stops
Frontier Logo
8:25 pm - 11:50 pmSAT-SAN
5h 25m1 stop
$157Frontier
Find Deal
Wed, Nov 12 - Mon, Nov 17
Frontier Logo
4:47 pm - 1:14 pmSAN-SAT
18h 27m1 stop
Frontier Logo
6:45 am - 7:15 pmSAT-SAN
14h 30m1 stop
$158Frontier
Find Deal
Tue, Dec 23 - Mon, Jan 5
Frontier Logo
3:47 pm - 12:56 pmSAN-SAT
19h 09m1 stop
Frontier Logo
12:03 pm - 11:59 pmSAT-SAN
13h 56m2 stops
$161Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8
Frontier Logo
9:52 pm - 2:17 pmSAN-SAT
14h 25m1 stop
Frontier Logo
8:25 pm - 12:07 pmSAT-SAN
17h 42m1 stop
$162Frontier
Find Deal
Fri, Nov 7 - Mon, Nov 10
Multiple Airlines Logo
3:59 pm - 11:45 pmSAN-SAT
29h 46m2 stops
Multiple Airlines Logo
10:46 pm - 12:35 pmSAT-SAN
15h 49m1 stop
$178Multiple Airlines
Find Deal
Mon, Nov 10 - Thu, Nov 13
American Airlines Logo
7:21 am - 5:00 pmSAN-SAT
7h 39m1 stop
American Airlines Logo
6:00 am - 8:47 amSAT-SAN
4h 47m1 stop
$187American Airlines
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Fri, Nov 14 - Sun, Nov 16
American Airlines Logo
6:30 am - 1:34 pmSAN-SAT
5h 04m1 stop
American Airlines Logo
6:00 am - 9:56 amSAT-SAN
5h 56m1 stop
$207American Airlines
Find Deal
Fri, Nov 14 - Wed, Nov 19
American Airlines Logo
6:15 am - 2:07 pmSAN-SAT
5h 52m1 stop
American Airlines Logo
5:00 am - 8:34 amSAT-SAN
5h 34m1 stop
$210American Airlines
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Tue, Nov 4 - Thu, Nov 13
American Airlines Logo
10:09 am - 4:42 pmSAN-SAT
4h 33m1 stop
American Airlines Logo
5:00 am - 8:34 amSAT-SAN
5h 34m1 stop
$230American Airlines
Find Deal
Sat, Nov 8 - Tue, Nov 11

Frontier flights from San Diego to San Antonio

Our best Frontier deals on San Diego to San Antonio flight tickets
Frontier
Nov 15
SAN6:41 amSan Diego
5h 36m
1 stop
SAT2:17 pmSan Antonio
Nov 17
SAT8:25 pmSan Antonio
25h 59m
2 stops
SAN8:24 pmSan Diego
$155
Find similar
Frontier
Nov 12
SAN8:00 amSan Diego
27h 19m
2 stops
SAT1:19 pmSan Antonio
Nov 17
SAT8:25 pmSan Antonio
5h 25m
1 stop
SAN11:50 pmSan Diego
$157
Find similar
Frontier
Dec 23
SAN4:47 pmSan Diego
18h 27m
1 stop
SAT1:14 pmSan Antonio
Jan 5
SAT6:45 amSan Antonio
14h 30m
1 stop
SAN7:15 pmSan Diego
$158
Find similar

American Airlines flights from San Diego to San Antonio

Our best American Airlines deals on San Diego to San Antonio flight tickets
American Airlines
Nov 14
SAN7:21 amSan Diego
7h 39m
1 stop
SAT5:00 pmSan Antonio
Nov 16
SAT6:00 amSan Antonio
4h 47m
1 stop
SAN8:47 amSan Diego
$187
Find similar
American Airlines
Nov 14
SAN6:30 amSan Diego
5h 04m
1 stop
SAT1:34 pmSan Antonio
Nov 19
SAT6:00 amSan Antonio
5h 56m
1 stop
SAN9:56 amSan Diego
$207
Find similar
American Airlines
Nov 4
SAN6:15 amSan Diego
5h 52m
1 stop
SAT2:07 pmSan Antonio
Nov 13
SAT5:00 amSan Antonio
5h 34m
1 stop
SAN8:34 amSan Diego
$210
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Diego to San Antonio 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 29, 2025.
Use the filters below to find and compare flights from San Diego to San Antonio that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 11/15

6:41 am-2:17 pm

1 stop5h 36m

San Antonio

Mon 11/17

8:25 pm-8:24 pm

2 stops25h 59m

$155

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Wed 11/12

8:00 am-1:19 pm

2 stops27h 19m

San Antonio

Mon 11/17

8:25 pm-11:50 pm

1 stop5h 25m

$157

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 12/23

4:47 pm-1:14 pm

1 stop18h 27m

San Antonio

Mon 1/5

6:45 am-7:15 pm

1 stop14h 30m

$158

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Thu 12/4

3:47 pm-12:56 pm

1 stop19h 09m

San Antonio

Mon 12/8

12:03 pm-11:59 pm

2 stops13h 56m

$161

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Fri 11/7

9:52 pm-2:17 pm

1 stop14h 25m

San Antonio

Mon 11/10

8:25 pm-12:07 pm

1 stop17h 42m

$162

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Mon 11/10

3:59 pm-11:45 pm

2 stops29h 46m

San Antonio

Thu 11/13

10:46 pm-12:35 pm

1 stop15h 49m

$178

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Fri 11/14

7:21 am-5:00 pm

1 stop7h 39m

San Antonio

Sun 11/16

6:00 am-8:47 am

1 stop4h 47m

$187

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Fri 11/14

6:30 am-1:34 pm

1 stop5h 04m

San Antonio

Wed 11/19

6:00 am-9:56 am

1 stop5h 56m

$207

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Tue 11/4

6:15 am-2:07 pm

1 stop5h 52m

San Antonio

Thu 11/13

5:00 am-8:34 am

1 stop5h 34m

$210

San DiegoSan Antonio

SAN - SAT

SANSAT

San Diego

Sat 11/8

10:09 am-4:42 pm

1 stop4h 33m

San Antonio

Tue 11/11

5:00 am-8:34 am

1 stop5h 34m

$230

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 Antonio from

How to get the cheapest flight ticket from San Diego to San Antonio

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 Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from San Diego during January instead. Flights to San Antonio in January, while not as cheap as those in August, still average around $348.

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

The cheapest day to depart on your flight to San Antonio is on a Saturday when prices can be found for as low as $385. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Friday is $468.

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

According to our data, the cheapest time of day to fly to San Antonio is in the afternoon. momondo users have found flights departing from San Diego to San Antonio in the afternoon for as low as $397. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the morning, with an average ticket price of $445. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from San Diego to San Antonio for the best San Diego - San Antonio flight prices

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

You are more likely to see cheaper flights to San Antonio from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $389 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from San Diego for as low as $283 on momondo.

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

There is only 1 cabin class available to choose from on San Diego to San Antonio flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have San Diego to San Antonio flight prices changed over time?

As of October 2025, prices for San Diego to San Antonio flights are approximately 40% more expensive when compared to flights at the same time last year.

When to book flights from San Diego to San Antonio

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

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

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

Best Price Found

$193

Fastest flight time

2h 40m

Direct flights

Every day

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from San Diego in the past 72 hours is $193. The best round-trip flight deal from San Diego to San Antonio found on momondo in the last 72 hours is $426.
The fastest flight from San Diego to San Antonio takes 2h 40m
Direct flights go from San Diego to San Antonio every day.
There is 1 airport near San Antonio: San Antonio (SAT)
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  • How far is San Diego to San Antonio by plane?

    San Antonio is 1125.3 mi away from San Diego. In terms of flight time, this usually takes a little over 4h 33m.

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

    Prices for flights from San Diego Airport to San Antonio Airport are refreshed on a daily basis.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Diego Airport to San Antonio Airport.

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

    The required travel and health documents for your San Antonio 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 Antonio 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 Diego to San Antonio?

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

Best airlines flying from San Diego to San Antonio

Compare and see reviews for airlines that fly from San Diego to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $100Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
FrontierPriceFrom $143Free CancellationRating
5.8
3,124 reviews
Search Frontier flights
American AirlinesPriceFrom $238Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,994 reviews
Search Delta flights
SouthwestPriceFrom $292Free CancellationRating
8.0
4,240 reviews
Search Southwest flights

  • Southwest Flights From San Diego to San Antonio

    Southwest flight deals from San Diego to San Antonio start from $292 round-trip. Over the 8 Southwest flights for this route in a normal week, average airfare is usually $439 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Boerne
Kerrville
Schertz
Pleasanton

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Diego to San Antonio for you.

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

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

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

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 Diego to San Antonio.

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

If you are simply researching potential flights to San Antonio, momondo offers a useful price alert feature which will track prices for flights to San Antonio from San Diego and alert you when they change.

An easier way to manage your San Antonio trip

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