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$91+ Cheap flights from Austin (AUS) to Carlsbad, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LAX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to Carlsbad are usually found in September or June, booked 67 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Austin to Carlsbad

Keep the following information in mind while searching for Austin to Carlsbad flight deals. Data was last updated September 11, 2025.

Round-trip from

$167
(Delta)

One-way from

$91
(Southwest)

Popular in

December

Cheapest in

September

Average price

$257
From Austin Bergstrom to Carlsbad
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One-way flight from Austin Bergstrom to Carlsbad
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Highest demand for flights based on searches. 9% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Austin to Carlsbad

Cheapest flights from Austin to Carlsbad
Explore the most affordable flight options available from Austin to Carlsbad. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/174:15 pmAUS - LAX
Nonstop3h 16mDelta
Sat 10/254:25 pmLAX - AUS
Nonstop2h 56mDelta
Deal found 9/11$169
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/47:20 amAUS - LAX
Nonstop3h 14mDelta
Sat 10/119:55 amLAX - AUS
1 stop5h 11mDelta
Deal found 9/10$170
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/14:44 pmAUS - LAX
Nonstop3h 15mUnited Airlines
Mon 10/69:30 pmLAX - AUS
1 stop6h 01mUnited Airlines
Deal found 9/11$171
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/204:27 pmAUS - LAX
1 stop5h 25mFrontier
Sat 9/272:31 pmLAX - AUS
1 stop5h 29mFrontier
Deal found 9/11$172
This Frontier deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:00 amAUS - LAX
1 stop6h 52mFrontier
Mon 9/296:35 amLAX - AUS
1 stop11h 53mFrontier
Deal found 9/11$173
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/114:15 pmAUS - LAX
Nonstop3h 16mDelta
Mon 10/136:30 amLAX - AUS
Nonstop3h 00mDelta
Deal found 9/9$174
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/212:00 pmAUS - LAX
1 stop7h 53mFrontier
Wed 10/226:45 amLAX - AUS
1 stop15h 48mFrontier
Deal found 9/10$175
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/291:00 pmAUS - LAX
1 stop8h 52mFrontier
Sun 10/54:21 pmLAX - AUS
1 stop16h 16mFrontier
Deal found 9/10$176
This Booking.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/910:35 amAUS - LAX
1 stop12h 01mFrontier
Sun 10/1210:39 pmLAX - AUS
1 stop15h 23mFrontier
Deal found 9/11$178
This Delta deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:20 amAUS - LAX
Nonstop3h 14mDelta
Mon 10/64:25 pmLAX - AUS
Nonstop2h 56mDelta
Deal found 9/11$179
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:25 pmAUS - LAX
1 stop5h 35mDelta
Sat 10/1111:11 amLAX - AUS
1 stop7h 45mDelta
Deal found 9/9$180

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Carlsbad 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, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Austin to Carlsbad that are best for you.

Fly from

Austin

Fly to

Carlsbad

Route

Depart

Return

Price

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Tue 10/14

7:20 am-8:38 am

Nonstop3h 18m

Los Angeles

Mon 10/27

6:30 am-11:30 am

Nonstop3h 00m

$169

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Mon 11/3

7:25 am-8:45 am

Nonstop3h 20m

Los Angeles

Wed 11/5

10:04 am-3:10 pm

Nonstop3h 06m

$169

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Thu 10/23

7:20 am-8:38 am

Nonstop3h 18m

Los Angeles

Wed 11/12

4:25 pm-9:23 pm

Nonstop2h 58m

$169

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Thu 10/2

1:59 pm-3:14 pm

Nonstop3h 15m

Los Angeles

Sat 10/11

6:30 am-11:30 am

Nonstop3h 00m

$169

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Fri 12/5

7:27 pm-8:55 pm

Nonstop3h 28m

Los Angeles

Sat 12/13

6:40 am-11:33 am

Nonstop2h 53m

$169

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Sat 10/4

7:20 am-8:34 am

Nonstop3h 14m

Los Angeles

Sat 10/11

9:55 am-5:06 pm

1 stop5h 11m

$170

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Tue 10/7

4:44 pm-5:59 pm

Nonstop3h 15m

Los Angeles

Thu 10/9

9:30 pm-5:32 am

1 stop6h 02m

$171

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Wed 10/1

7:20 am-8:34 am

Nonstop3h 14m

Los Angeles

Mon 10/6

4:25 pm-9:21 pm

Nonstop2h 56m

$179

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Thu 10/2

4:00 pm-5:15 pm

Nonstop3h 15m

Los Angeles

Mon 10/6

6:30 am-11:30 am

Nonstop3h 00m

$181

AustinLos Angeles

AUS - LAX

AUSLAX

Austin Bergstrom

Tue 10/21

4:44 pm-5:59 pm

Nonstop3h 15m

Los Angeles

Fri 10/24

11:59 pm-8:30 am

1 stop6h 31m

$188

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Austin to Carlsbad

Have a flexible travel schedule? Discover the best time to fly to Carlsbad from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Carlsbad

How far ahead should I book a flight from Austin to Carlsbad?

Use this chart to determine the optimal time to book a round-trip flight from Austin to Carlsbad. Price data was last updated on August 29, 2025.

The best time to book flights from Austin to Carlsbad is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Austin to Carlsbad?

Currently, January is the cheapest month in which you can book a flight from Austin to Carlsbad (average of $246). Flying from Austin to Carlsbad in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from AUS to C4D?

Find hourly flight availability from Austin to Carlsbad. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

When flying from Austin to Carlsbad, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Austin to Carlsbad?

Use this chart to determine the cheapest time to fly round-trip from Austin to Carlsbad. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Austin to Carlsbad flight should consider departing on Thursday at noon when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Austin to Carlsbad

Explore weekly flight availability from Austin to Carlsbad. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 11, 2025.

The most flights from AUS to C4D are scheduled on a Thursday (47 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

Reviews of airlines servicing Carlsbad

Get insights into the airlines that provide service to Carlsbad. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Carlsbad. Reviews last updated September 11, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Austin to Carlsbad to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Crew

8.6

Overall

8.0

Entertainment

7.5

Comfort

8.0

Food

7.0

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

Find useful and relevant information for your journey from Austin to Carlsbad. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Austin to Carlsbad?

    Austin Bergstrom (AUS) is the airport you will fly out of if you book a flight from Austin to Carlsbad. You should not have trouble finding flights to Carlsbad from Austin Bergstrom; the airport handles an average of 35 outbound flights to Carlsbad per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Austin airport to Carlsbad. It is only a 7.5 mi journey to Austin Bergstrom (AUS) from Austin’s city center.

  • How popular is this Austin to Carlsbad flight route?

    Within the past month, 123 users have taken a look at flights from Austin Bergstrom to Carlsbad.

  • How long is the flight from Austin to Carlsbad?

    Departing from Austin to Carlsbad will take you 3h 18m. Airlines will cover a distance of 1238 mi. Most flights are nonstop.

  • What are the most reliable airlines from Austin to Carlsbad?

    Consider Sun Country Air (100%), SkyWest Airlines (98%) or United Airlines (96%) when booking your flight. These represent the most reliable airlines when flying from Austin to Carlsbad.

  • What are the cheapest flights from Austin to Carlsbad?

    Looking at all options, your cheapest flight can be booked for $95. While the most popular route (Austin Bergstrom - Los Angeles) can be booked for $148 on average, our data indicates $807 when flying from Austin to Carlsbad.

  • Can I find deals for flights from Austin to Carlsbad that include hotel bookings?

    Yes. In addition to deals on Austin to Carlsbad flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Carlsbad?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Carlsbad.

  • Can I find deals for business class flights from Austin to Carlsbad?

    Yes. Cheapflights offers flight deals from Austin to Carlsbad by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Carlsbad?

    Currently, January is the cheapest month in which you can book a flight from Austin to Carlsbad (average of $246). Flying from Austin to Carlsbad in March is currently the most expensive (average of $325). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Austin to Carlsbad

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Top 8 airlines flying from Austin to Carlsbad

Discover the top 8 airlines that operate flights from Austin to Carlsbad. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$71Average$185FlexibilityNo cancel feeOn-time65%
FrontierCheapest$88Average$204FlexibilityNo cancel feeOn-time62%
DeltaCheapest$119Average$323FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$128Average$307FlexibilityNo cancel feeOn-time85%
Alaska AirlinesCheapest$154Average$408FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$178Average$352FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$180Average$377FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$190Average$386FlexibilityNo cancel feeOn-time71%

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