$128+ Cheap flights from Austin (AUS) to Carlsbad, CA, 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 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — LAX
Sep 7 — Sep 141
Round-trip
1 adult, Economy
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Find cheap flights from Austin to Carlsbad with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Austin Bergstrom to Carlsbad are usually found in August or October, booked 65 days in advance, depart on a Thursday or Friday and return on a Thursday
Cheap flight deals from Austin to Carlsbad
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to CarlsbadExplore 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 August 8, 2026.
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 August 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Sat 9/58:15 pm -
1 stop5h 56m
Tue 9/89:40 am -
2 stops22h 23m
Deal found 8/5![Frontier logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Fri 8/2810:55 am -
1 stop9h 17m
Mon 8/3110:22 pm -
2 stops33h 48m
Deal found 8/5![Frontier logo]()
$246
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:51 pm -
1 stop27h 48m
Thu 9/106:05 am -
1 stop28h 25m
Deal found 8/6![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 9/410:55 am -
1 stop9h 23m
Wed 9/99:40 pm -
1 stop10h 23m
Deal found 8/5![Frontier logo]()
$249
This Kissandfly.com deal was found by Cheapflights users on 8/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:20 am -
Nonstop3h 04m
Wed 9/99:40 pm -
1 stop10h 23m
Deal found 8/3![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Sat 8/228:15 pm -
1 stop5h 56m
Tue 9/19:40 am -
1 stop7h 50m
Deal found 8/3![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 10/169:27 pm -
1 stop12h 45m
Mon 10/1910:27 pm -
2 stops20h 05m
Deal found 8/7![Frontier logo]()
$252
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:15 pm -
1 stop14h 15m
Sun 8/309:09 pm -
1 stop24h 32m
Deal found 8/3![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/188:15 pm -
1 stop5h 56m
Tue 9/16:30 am -
1 stop11h 00m
Deal found 8/6![Frontier logo]()
$255
Best flights from Austin to CarlsbadDiscover carefully curated flight deals from Austin to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
Discover carefully curated flight deals from Austin to Carlsbad that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 8, 2026.
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:40 pm -
Nonstop3h 10m
Mon 9/147:30 pm -
Nonstop3h 00m
Deal found 8/7![Southwest logo]()
$277
This Delta deal was found by Cheapflights users on 8/3. 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 10/281:40 pm -
Nonstop3h 20m
Wed 11/1110:23 am -
Nonstop3h 02m
Deal found 8/3![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 8/6. 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 10/214:25 pm -
Nonstop3h 20m
Sat 10/247:40 am -
Nonstop3h 00m
Deal found 8/6![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:10 pm -
Nonstop3h 10m
Mon 9/218:35 am -
1 stop4h 10m
Deal found 8/7![Southwest logo]()
$283
This Delta deal was found by Cheapflights users on 8/5. 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.
Tue 10/277:10 am -
Nonstop3h 22m
Wed 11/116:59 pm -
Nonstop2h 56m
Deal found 8/5![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:25 pm -
1 stop5h 40m
Sat 9/266:05 am -
Nonstop3h 00m
Deal found 8/3![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 8/3. 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 10/301:40 pm -
Nonstop3h 20m
Mon 11/27:10 am -
Nonstop3h 00m
Deal found 8/3![Delta logo]()
$282
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/224:45 pm -
1 stop6h 20m
Mon 10/267:55 am -
Nonstop2h 55m
Deal found 8/3![Southwest logo]()
$287
This Southwest deal was found by Cheapflights users on 8/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:40 pm -
Nonstop3h 10m
Fri 9/118:35 am -
1 stop4h 10m
Deal found 8/3![Southwest logo]()
$288
This Delta deal was found by Cheapflights users on 8/4. 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 8/296:55 pm -
Nonstop3h 07m
Sat 9/57:40 am -
Nonstop3h 02m
Deal found 8/4![Delta logo]()
$292
This Delta deal was found by Cheapflights users on 8/5. 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 8/281:40 pm -
Nonstop3h 07m
Wed 9/97:40 am -
Nonstop2h 55m
Deal found 8/5![Delta logo]()
$295
This Southwest deal was found by Cheapflights users on 8/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/218:05 am -
2 stops6h 55m
Sat 10/2411:10 am -
2 stops8h 25m
Deal found 8/7![Southwest logo]()
$307
Last-minute flights from Austin to CarlsbadDiscover last-minute flight deals from Austin to Carlsbad. Data last updated August 8, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Carlsbad. Data last updated August 8, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 8/188:15 pm -
1 stop5h 56m
Tue 9/16:30 am -
1 stop11h 00m
Deal found 8/6![Frontier logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Thu 8/204:50 pm -
1 stop7h 49m
Fri 9/112:28 pm -
1 stop27h 01m
Deal found 8/6![Frontier logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Sat 8/228:15 pm -
1 stop5h 56m
Tue 9/19:40 am -
1 stop7h 50m
Deal found 8/3![Frontier logo]()
$251
This Expedia deal was found by Cheapflights users on 8/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/278:15 pm -
1 stop14h 15m
Sun 8/309:09 pm -
1 stop24h 32m
Deal found 8/3![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 8/7. 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.
Fri 8/2810:55 am -
1 stop9h 17m
Mon 8/3110:22 pm -
2 stops23h 19m
Deal found 8/7![Frontier logo]()
$246
This Kissandfly.com deal was found by Cheapflights users on 8/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:20 am -
Nonstop3h 04m
Wed 9/99:40 pm -
1 stop10h 23m
Deal found 8/3![Frontier logo]()
$250
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/48:51 pm -
1 stop27h 48m
Thu 9/106:05 am -
1 stop28h 25m
Deal found 8/6![Frontier logo]()
$248
This Frontier deal was found by Cheapflights users on 8/5. 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.
Fri 9/410:55 am -
1 stop9h 23m
Wed 9/99:40 pm -
1 stop10h 23m
Deal found 8/5![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Sat 9/58:15 pm -
1 stop5h 56m
Tue 9/89:40 am -
2 stops22h 23m
Deal found 8/5![Frontier logo]()
$244
One-way flights from Austin to CarlsbadSearch for one-way flight options from Austin to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
Search for one-way flight options from Austin to Carlsbad. Find affordable one-way fares based on user searches. Data last updated August 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/3. 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.
Wed 10/216:15 am -
2 stops16h 46m
Deal found 8/3![Frontier logo]()
$128
This Trip.com deal was found by Cheapflights users on 8/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1110:24 pm -
1 stop19h 28m
Deal found 8/4![Frontier logo]()
$129
This CheapOair deal was found by Cheapflights users on 8/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:24 pm -
1 stop21h 45m
Deal found 8/7![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/206:15 am -
2 stops13h 54m
Deal found 8/6![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 8/246:15 am -
2 stops18h 24m
Deal found 8/3![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 8/4. 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.
Sat 10/106:15 am -
2 stops13h 54m
Deal found 8/4![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 8/5. 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.
Thu 9/37:10 pm -
1 stop25h 08m
Deal found 8/5![Frontier logo]()
$134
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 9/148:24 pm -
2 stops16h 13m
Deal found 8/6![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Thu 9/2410:58 am -
2 stops15h 12m
Deal found 8/6![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/2610:24 pm -
2 stops27h 39m
Deal found 8/6![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/3. 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 11/29:53 pm -
2 stops17h 51m
Deal found 8/3![Frontier logo]()
$138
This Delta deal was found by Cheapflights users on 8/7. 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 9/127:15 am -
Nonstop3h 13m
Deal found 8/7![Delta logo]()
$139
Find flight deals from Austin to Carlsbad
Keep the following information in mind while searching for Austin to Carlsbad flight deals. Data was last updated August 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (Kiwi.com) |
One-way from | $128 (Kiwi.com) |
Popular in | March |
Cheapest in | August |
Average price | $293 |
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 August 8, 2026.
Use the filters below to find and compare flights from Austin to Carlsbad that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Thu 9/10
4:40 pm-5:50 pm
Nonstop3h 10m
Los Angeles
Mon 9/14
7:30 pm-12:30 am
Nonstop3h 00m
$277
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Wed 10/28
1:40 pm-3:00 pm
Nonstop3h 20m
Los Angeles
Wed 11/11
10:23 am-3:25 pm
Nonstop3h 02m
$277
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Wed 10/21
4:25 pm-5:45 pm
Nonstop3h 20m
Los Angeles
Sat 10/24
7:40 am-12:40 pm
Nonstop3h 00m
$277
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Tue 10/27
7:10 am-8:32 am
Nonstop3h 22m
Los Angeles
Wed 11/11
6:59 pm-11:55 pm
Nonstop2h 56m
$277
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Fri 10/30
1:40 pm-3:00 pm
Nonstop3h 20m
Los Angeles
Mon 11/2
7:10 am-12:10 pm
Nonstop3h 00m
$282
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Sat 9/19
1:10 pm-2:20 pm
Nonstop3h 10m
Los Angeles
Mon 9/21
8:35 am-2:45 pm
1 stop4h 10m
$283
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Thu 9/17
7:25 pm-11:05 pm
1 stop5h 40m
Los Angeles
Sat 9/26
6:05 am-11:05 am
Nonstop3h 00m
$287
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Thu 10/22
4:45 pm-9:05 pm
1 stop6h 20m
Los Angeles
Mon 10/26
7:55 am-12:50 pm
Nonstop2h 55m
$287
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Wed 9/2
6:40 pm-7:50 pm
Nonstop3h 10m
Los Angeles
Fri 9/11
8:35 am-2:45 pm
1 stop4h 10m
$288
AustinLos Angeles
AUS Austin Bergstrom - LAX Los Angeles
AUSLAX
Austin Bergstrom
Sat 8/29
6:55 pm-8:02 pm
Nonstop3h 07m
Los Angeles
Sat 9/5
7:40 am-12:42 pm
Nonstop3h 02m
$292
Showing 1-10 of 23 resultsSorted by cheapest first
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.
AUS-LAX
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
AUS-C4D
AUS-LAX
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 August 8, 2026.
It’s optimal to fly from Austin to Carlsbad at noon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the evening.
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 August 8, 2026.
The most flights from AUS to C4D are scheduled on a Thursday (52 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
How much does it cost to fly round-trip from Austin to Carlsbad?
Airfare is below average for this route at the moment.
Austin to Carlsbad flights typically cost between $248 and $390 in September.The cheapest round-trip price found within the last 5 days was $244 on Frontier (Sep 5-Sep 8).
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 August 1, 2026.
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 at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 8, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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Austin and Carlsbad flights
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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 August 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$68 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$98 | Average$267 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$108 | Average$311 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$162 | Average$327 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$176 | Average$466 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$186 | Average$404 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$197 | Average$327 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$372 | FlexibilityNo cancel fee | On-time71% |