Cheap Flights from San Antonio (SAT) to San Diego (SAN)

You can find one-way and return flights from SAT to SAN with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SAT to SAN ticket fares go up or down.

September is typically the cheapest month to fly from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.), with average return fares around AU$489. September often sees lower prices as the summer travel rush winds down and before the holiday season picks up, leading to reduced demand. Other cheap months to fly from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.) include August and October.

Only one airline offers direct flights from San Antonio Intl. (SAT) to San Diego Intl. (SAN). Southwest Airlines operates 14 direct flights from San Antonio Intl. to San Diego Intl. every week.

For connecting flights, Frontier Airlines is one of the cheapest, with return tickets starting from around AU$192. Southwest Airlines is one of the cheapest airlines offering nonstop return flights from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.), with tickets starting from around AU$383 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.

To find a cheap flight from San Antonio, TX (SAT) to San Diego, CA (SAN), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.) will differ from traveler to traveler. If you like to fly early, Southwest Airlines offers early morning flights. If price is the most important factor, Southwest Airlines typically offers the lowest fares. Southwest Airlines offers the most daily flights from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find approximately 2 nonstop flights per day from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.). For even more choices, look at flights that include layovers, as there are around 82 connecting flights per day. Some common connection points include Dallas-Fort Worth Intl. (DFW), Seattle - Tacoma Intl. (SEA), and Denver Intl. (DEN).

The earliest flight from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.) typically departs around 5:00 AM. This flight is operated by American Airlines. This is a seasonal service active in August and September. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll typically find the most flights from San Antonio International Airport (SAT) to San Diego International Airport (SAN) on a Friday, with around 84 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Southwest Airlines, American Airlines, and United. Friday offers notably more flight options compared to other days of the week, making it a great day to consider for your trip.

The most popular departure times for flights from San Antonio Intl. (SAT) to San Diego Intl. (SAN) are in the early morning, from 6am to 9am. Many major carriers, including Southwest Airlines, American Airlines and United, offer flights during this window. Many travellers prefer these early flights as they allow you to arrive at your destination with plenty of time to start your day.

When flying from San Antonio, TX (SAT-San Antonio Intl.) to San Diego, CA (SAN-San Diego Intl.), you have a few options. A non-stop flight typically takes around 2 hours 48 minutes, covering a distance of approximately 1,815 kilometers. If you opt for a one-stop flight, the travel time is usually longer, averaging around 5 hours 30 minutes. Flights with two or more stops will take even longer, typically around 11 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like routing, weather, and wind patterns.

Yes, you can fly business class or first class between SAT and SAN.

Airlines that offer business class service on this route include:

* Frontier Airlines
* Delta

First class cabins are available on:

* Alaska Airlines
* United
* Delta
* American Airlines

It's easy to earn miles on a San Antonio, TX (SAT) to San Diego, CA (SAN) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you're planning to travel to San Diego from San Antonio Intl. (SAT), you can fly directly into San Diego Intl. (SAN). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), George Bush Intercontinental (IAH), or Love Field (DAL) before reaching San Diego. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from San Antonio, TX (SAT) to San Diego, CA (SAN) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Antonio, TX (SAT) to San Diego, CA (SAN) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Antonio, TX (SAT) to San Diego, CA (SAN) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.