Cheap flights from San Diego to Austin from $55

The cheapest month to fly to Austin from San Diego is in January. Flight prices, which tend to average around $197, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in January, then July is your next best option. Flight prices from San Diego to Austin during July average around $225.

The cheapest day to depart on your flight to Austin is on a Friday when prices can be found for as low as $249. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Austin for around $318.

At noon is the cheapest time of day to fly from San Diego to Austin when you can find flight prices for as low as $235. Flying to Austin at noon is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly in the evening, with an average ticket price of $310. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from San Diego to Austin Bergstrom for the best San Diego - Austin Bergstrom flight prices

You are more likely to see cheaper flights to Austin from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $256 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from San Diego for as low as $224 on momondo.

There are 4 cabin classes available to choose from on San Diego to Austin Bergstrom flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

No. A direct flight is the cheapest option for a flight between San Diego to Austin.

As of February 2026, prices for San Diego to Austin flights are approximately 52% cheaper when compared to flights at the same time last year.

Alaska Airlines, United Airlines, and Southwest are the most popular carriers operating from San Diego to Austin Bergstrom

Southwest, American Airlines and Frontier are the top three most popular airlines that fly to Austin from San Diego according to our data. Southwest is the first choice among our users, with 46% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 8 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

Phoenix (PHX) was the most common stop: 44% of momondo users choosing 1-stop flights on this route connected there.

Flights via Phoenix (PHX) offer the lowest average round-trip price of $317.

Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 5h 11m.

Salt Lake City (SLC) has the shortest average layover time for this route: 0h 47m.

As of February 2026, there are 15 flights per day flying from San Diego to Austin. The most common time of day flights depart is 10:00AM, with 54% of flights taking off at noon.

111 flights are operational weekly from San Diego to Austin as of February 2026. The most popular departure day for this route is Thu, with 16% of flights per week taking off on this day.