Cheap flights from San Diego to San Antonio from $43
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 9/7. 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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Frontier flights from San Diego to San Antonio
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Spirit Airlines flights from San Diego to San Antonio
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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 September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $332.
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 $466.
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 at noon. momondo users have found flights departing from San Diego to San Antonio at noon for as low as $370. 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 $379 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 $253 on momondo.
What cabin class options are available on San Diego to San Antonio flights?
There are 1 cabin classes 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.
What is the cheapest airline that flies from San Diego to San Antonio?
Frontier, Spirit Airlines, and Southwest are the most popular carriers operating from San Diego to San Antonio
What airlines fly to San Antonio?
Southwest, American Airlines and Alaska Airlines are the top three most popular airlines that fly to San Antonio from San Diego according to our data. Southwest is the first choice among our users, with 43% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 9 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
How many flights depart from San Diego to San Antonio on average per day?
The number of flights available between San Diego and San Antonio is 1 per day as of July 2025. The most frequent departure time is 7:00AM, with 61% of daily flights leaving at noon.
How many flights depart from San Diego to San Antonio on average per week?
10 flights are operational weekly from San Diego to San Antonio as of July 2025. The most popular departure day for this route is Mon, with 30% of flights per week taking off on this day.
When to book flights from San Diego to San Antonio
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
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 2h 50m.
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?
There are 6 operators available for flights from San Diego Airport to San Antonio Airport as of July 2025.
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?
Based on momondo bookings for flights between San Diego and San Antonio, the leading plane model is Boeing 737-700 Passenger/BBJ1 (winglets), making up 56.69% of the total bookings. Other popular models include Boeing 737 MAX 8 with 9.45%, Embraer 175 with 7.87%, and Boeing 737-800 Passenger/BBJ2 (winglets) with 6.30%.
What is the most popular airline from San Diego to San Antonio?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Diego to San Antonio is Southwest (43% of total bookings). The next most popular airlines are American Airlines (24%), Spirit Airlines (17%), and Frontier (9%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $105 | Free Cancellation | Rating 6.3 8,086 reviews | |||
| PriceFrom $118 | Free Cancellation | Rating 5.9 3,286 reviews | |||
| PriceFrom $227 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $256 | Free Cancellation | Rating 8.0 7,982 reviews | |||
| PriceFrom $324 | Free Cancellation | Rating 8.0 4,266 reviews | |||
| PriceFrom $338 | Free Cancellation | Rating 7.4 8,861 reviews |
Southwest Flights From San Diego to San Antonio
Southwest flight deals from San Diego to San Antonio start from $324 round-trip. Over the 10 Southwest flights for this route in a normal week, average airfare is usually $443 round-trip - but some users have found much cheaper deals with momondo.
Traveling to a place near San Antonio?
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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.