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Cheap flights from San Antonio to San Diego from $39

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 5/29. 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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0 bags

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Find the cheapest flights from San Antonio to San Diego

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Antonio to San Diego.
Spirit Airlines Logo
7:25 pm - 12:42 amSAT-SAN
7h 17m1 stop
Spirit Airlines Logo
8:29 am - 5:26 pmSAN-SAT
6h 57m1 stop
$82Spirit Airlines
Find Deal
Tue, Apr 22 - Tue, Apr 29
Spirit Airlines Logo
7:25 pm - 12:42 amSAT-SAN
7h 17m1 stop
Spirit Airlines Logo
9:08 pm - 4:34 amSAN-SAT
5h 26m1 stop
$103Spirit Airlines
Find Deal
Tue, Apr 22 - Thu, Apr 24
Frontier Logo
5:04 pm - 8:29 pmSAT-SAN
5h 25m1 stop
Frontier Logo
6:25 am - 2:17 pmSAN-SAT
5h 52m1 stop
$208Frontier
Find Deal
Mon, Apr 21 - Mon, May 5
Frontier Logo
7:50 pm - 11:55 pmSAT-SAN
6h 05m1 stop
Frontier Logo
6:25 am - 6:50 pmSAN-SAT
10h 25m1 stop
$258Frontier
Find Deal
Thu, Jun 5 - Sun, Jun 8
Delta Logo
6:25 am - 12:56 pmSAT-SAN
8h 31m1 stop
Delta Logo
2:00 pm - 12:21 amSAN-SAT
8h 21m1 stop
$299Delta
Find Deal
Fri, May 30 - Tue, Jun 17
Southwest Logo
8:55 am - 9:55 amSAT-SAN
3h 00mnonstop
Southwest Logo
9:10 am - 1:50 pmSAN-SAT
2h 40mnonstop
$307Southwest
Find Deal
Tue, Apr 22 - Tue, Apr 29
Delta Logo
12:40 pm - 4:25 pmSAT-SAN
5h 45m1 stop
Delta Logo
12:26 pm - 11:07 pmSAN-SAT
8h 41m1 stop
$308Delta
Find Deal
Sat, May 10 - Tue, May 20
Southwest Logo
8:55 am - 9:55 amSAT-SAN
3h 00mnonstop
Southwest Logo
4:35 pm - 10:20 pmSAN-SAT
3h 45m1 stop
$313Southwest
Find Deal
Tue, Apr 22 - Tue, Apr 29
United Airlines Logo
5:39 am - 9:14 amSAT-SAN
5h 35m1 stop
United Airlines Logo
10:43 am - 10:59 pmSAN-SAT
10h 16m2 stops
$322United Airlines
Find Deal
Sun, May 25 - Tue, Jun 3
United Airlines Logo
4:31 pm - 11:44 pmSAT-SAN
9h 13m2 stops
United Airlines Logo
10:53 am - 11:59 pmSAN-SAT
11h 06m2 stops
$327United Airlines
Find Deal
Sat, Jul 5 - Sat, Jul 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
Apr 22
SAT7:25 pmSan Antonio
7h 17m
1 stop
SAN12:42 amSan Diego
Apr 29
SAN8:29 amSan Diego
6h 57m
1 stop
SAT5:26 pmSan Antonio
Spirit Airlines
Apr 22
SAT7:25 pmSan Antonio
7h 17m
1 stop
SAN12:42 amSan Diego
Apr 24
SAN9:08 pmSan Diego
5h 26m
1 stop
SAT4:34 amSan Antonio
Spirit Airlines
Apr 30
SAT6:31 pmSan Antonio
8h 11m
1 stop
SAN12:42 amSan Diego
May 7
SAN8:48 pmSan Diego
11h 59m
1 stop
SAT10:47 amSan Antonio

Frontier flights from San Antonio to San Diego

Our best Frontier deals on San Antonio to San Diego flight tickets
Frontier
Apr 21
SAT5:04 pmSan Antonio
5h 25m
1 stop
SAN8:29 pmSan Diego
May 5
SAN6:25 amSan Diego
5h 52m
1 stop
SAT2:17 pmSan Antonio
Frontier
Apr 10
SAT7:51 pmSan Antonio
6h 23m
1 stop
SAN12:14 amSan Diego
Apr 13
SAN6:25 amSan Diego
10h 36m
1 stop
SAT7:01 pmSan Antonio
Frontier
Apr 11
SAT5:47 pmSan Antonio
27h 29m
1 stop
SAN7:16 pmSan Diego
Apr 13
SAN6:25 amSan Diego
10h 36m
1 stop
SAT7:01 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 $383. 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 $429. Flights in the evening are often more expensive with an average ticket price of $467.

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 10 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $368 when searching 10 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 $276 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 April 2025, prices for San Antonio to San Diego flights are approximately 9% 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

$39

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 $39. The best round-trip flight deal from San Antonio to San Diego found on momondo in the last 72 hours is $82.
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
FrontierPriceFrom $90Free CancellationRating
5.9
3,276 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
7,888 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $166Free CancellationRating
8.0
9,825 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $228Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $304Free CancellationRating
8.0
7,897 reviews
Search Delta flights
SouthwestPriceFrom $340Free CancellationRating
8.0
4,272 reviews
Search Southwest flights
United AirlinesPriceFrom $372Free CancellationRating
7.4
8,616 reviews
Search United Airlines flights
  • Southwest Flights From San Antonio to San Diego

    Southwest flies from San Antonio to San Diego around 13 times per week, with 4,272 momondo users rating the airline 8.0/10. The cheapest Southwest deal from San Antonio to San Diego in the last 72 hours was $340 (round-trip), much lower than the average airfare cost of $454 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
Lemon Grove
Imperial Beach
San Ysidro
Borrego Springs
Poway
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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