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Key Largo

$96+ Cheap flights from Austin (AUS) to Key Largo, FL

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — MIA
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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Cheapflights Tip: The best prices from Austin Bergstrom to Key Largo are usually found in September or August, booked 88 days in advance, depart on a Friday or Monday and return on a Saturday

Cheap flight deals from Austin to Key Largo

Keep the following information in mind while searching for Austin to Key Largo flight deals. Data was last updated April 15, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$185
(American Airlines)

One-way from

$96
(Southwest)

Popular in

March

Cheapest in

September

Average price

$366
Provider with most accurate pricing for Austin Bergstrom-Miami flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Miami flights.
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From Austin Bergstrom to Key Largo
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One-way flight from Austin Bergstrom to Key Largo
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Highest demand for flights based on searches. 12% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Austin to Key Largo

Cheapest flights from Austin to Key Largo
Explore the most affordable flight options available from Austin to Key Largo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 15, 2025.

This American Airlines deal was found by Cheapflights users on 4/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2511:28 amAUS - MIA
Nonstop2h 51mAmerican Airlines
Wed 6/257:06 pmMIA - AUS
Nonstop2h 58mAmerican Airlines
Deal found 4/15$185
This Priceline deal was found by Cheapflights users on 4/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/238:11 pmAUS - MIA
1 stop8h 32mMultiple Airlines
Sun 5/253:30 pmMIA - AUS
Nonstop3h 10mMultiple Airlines
Deal found 4/14$200
This CheapOair deal was found by Cheapflights users on 4/14. 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.
Sat 5/245:08 pmAUS - MIA
1 stop11h 32mFrontier
Tue 5/273:35 pmMIA - AUS
Nonstop3h 10mFrontier
Deal found 4/14$207
This Delta deal was found by Cheapflights users on 4/14. 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 5/144:59 pmAUS - MIA
1 stop6h 38mDelta
Wed 5/215:35 amMIA - AUS
1 stop6h 23mDelta
Deal found 4/14$217
This Southwest deal was found by Cheapflights users on 4/13. 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 5/211:40 pmAUS - MIA
Nonstop2h 45mSouthwest
Wed 5/282:40 pmMIA - AUS
Nonstop3h 15mSouthwest
Deal found 4/13$220
This Booking.com deal was found by Cheapflights users on 4/13. 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.
Sat 5/311:12 amAUS - MIA
1 stop9h 04mSpirit Airlines
Fri 5/97:00 amMIA - AUS
1 stop31h 10mSpirit Airlines
Deal found 4/13$229
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Thu 6/127:10 amAUS - MIA
1 stop7h 34mUnited Airlines
Mon 6/234:50 pmMIA - AUS
1 stop7h 14mUnited Airlines
Deal found 4/14$330

Cheapflights Fare Finder

Customize your flight search to find flights from Austin to Key Largo 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 April 15, 2025.
Use the filters below to find and compare flights from Austin to Key Largo that are best for you.

Fly from

Austin

Fly to

Key Largo

Route

Depart

Return

Price

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Wed 6/25

11:28 am-3:19 pm

Nonstop2h 51m

Miami

Wed 6/25

7:06 pm-9:04 pm

Nonstop2h 58m

$185

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Fri 5/23

8:11 pm-5:43 am

1 stop8h 32m

Miami

Sun 5/25

3:30 pm-5:40 pm

Nonstop3h 10m

$200

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Sat 5/24

5:08 pm-5:40 am

1 stop11h 32m

Miami

Tue 5/27

3:35 pm-5:45 pm

Nonstop3h 10m

$207

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Wed 5/14

4:59 pm-12:37 am

1 stop6h 38m

Miami

Wed 5/21

5:35 am-10:58 am

1 stop6h 23m

$217

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Wed 5/21

1:40 pm-5:25 pm

Nonstop2h 45m

Miami

Wed 5/28

2:40 pm-4:55 pm

Nonstop3h 15m

$220

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Sat 5/3

11:12 am-9:16 pm

1 stop9h 04m

Miami

Fri 5/9

7:00 am-1:10 pm

1 stop31h 10m

$229

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Thu 6/12

7:10 am-3:44 pm

1 stop7h 34m

Miami

Mon 6/23

4:50 pm-11:04 pm

1 stop7h 14m

$330

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Tue 7/15

3:36 pm-7:36 pm

Nonstop3h 00m

$96

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Sun 7/13

10:38 am-2:29 pm

Nonstop2h 51m

$104

AustinMiami

AUS - MIA

AUSMIA

Austin Bergstrom

Tue 6/17

8:35 am-5:10 pm

1 stop7h 35m

$109

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/15

Showing 1-10 of 16 results
1
2

Best time to book a flight from Austin to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo 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 Key Largo

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

Use this chart to determine the optimal time to book a round-trip flight from Austin to Key Largo. Price data was last updated on April 11, 2025.

The best time to book flights from Austin to Key Largo is 88 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 Key Largo?

Currently, September is the cheapest month in which you can book a flight from Austin to Key Largo (average of $229). Flying from Austin to Key Largo in March is currently the most expensive (average of $289). 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 KE9?

Find hourly flight availability from Austin to Key Largo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 15, 2025.

When flying from Austin to Key Largo, 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 Key Largo?

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

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

Weekly flight availability from Austin to Key Largo

Explore weekly flight availability from Austin to Key Largo. 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 April 15, 2025.

The most flights from AUS to KE9 are scheduled on a Tuesday (13 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Key Largo by month

Plan your trip to Key Largo by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key Largo ranges from 1.6 - 9.9 inches per month. September is typically the wettest month, when rainfall can reach 9.9 in. January is typically the driest time to visit Key Largo when rainfall is around 1.6 in.

Temperature in Key Largo by month

Plan your trip to Key Largo by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key Largo, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated April 15, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Austin to Key Largo. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,871 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,279 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,918 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,658 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,871 reviews

Comfort

7.9

Entertainment

7.1

Food

7.1

Overall

8.0

Boarding

8.2

Crew

8.5

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Austin to Key Largo. 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 Key Largo?

    If you book a flight to Key Largo from Austin, you will be flying from Austin Bergstrom, which is the city’s only airport. Austin Bergstrom (AUS) is located 7.5 mi from the center of Austin. There are 11 flights from Austin Bergstrom to Key Largo per day from 6 different airlines.

  • How popular is this Austin to Key Largo flight route?

    Within the past month, 9 users have taken a look at flights from Austin Bergstrom to Key Largo.

  • What are the cheapest airlines to fly from Austin to Key Largo one-way?

    The cheapest airlines for a one-way flight from Austin to Key Largo are Southwest ($96), Frontier ($97), and Spirit Airlines ($99).

  • What are the most reliable airlines from Austin to Key Largo?

    Consider Iberia (84%), Southwest (80%) or Finnair (75%) when booking your flight. These represent the most reliable airlines when flying from Austin to Key Largo.

  • What are the cheapest flights from Austin to Key Largo?

    While on average a flight from Austin to Key Largo is generally $751, our data shows the cheapest flight currently is $89. When looking at the most popular route, (Austin Bergstrom - Miami), you can expect to pay $200 for that flight.

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

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

  • How can I find direct flights from Austin to Key Largo?

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

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

    Yes. Cheapflights offers flight deals from Austin to Key Largo 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 Key Largo?

    Currently, September is the cheapest month in which you can book a flight from Austin to Key Largo (average of $229). Flying from Austin to Key Largo in March is currently the most expensive (average of $289). 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.

See more FAQs

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Top 6 airlines flying from Austin to Key Largo

Discover the top 6 airlines that operate flights from Austin to Key Largo. 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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$95Average$200FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$95Average$199FlexibilityNo cancel feeOn-time65%
DeltaCheapest$162Average$335FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$179Average$376FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$491FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$209Average$449FlexibilityNo cancel feeOn-time63%

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