$42 Find Cheap Flights from Austin to Florida Keys

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Austin to Florida Keys departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Florida Keys

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Florida Keys, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Austin to Florida Keys, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Austin to Florida Keys

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Miami
Miaminonstop$82
Key West
Key West1 stop$191
Miami
Miaminonstop$82
Key West
Key West1 stop$191

Book Cheap Austin to Florida Keys Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Austin to Florida Keys that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Austin to Florida Keys

Sun, Sep 7 - Sun, Sep 14
Frontier Logo
7:03 pm - 11:00 pmAUS-MIA
2h 57mnonstop
Frontier Logo
4:04 pm - 6:08 pmMIA-AUS
3h 04mnonstop
$82Frontier
Find Deal
Sun, Aug 31 - Thu, Sep 4
Frontier Logo
5:55 pm - 9:50 pmAUS-MIA
2h 55mnonstop
Frontier Logo
3:59 pm - 6:03 pmMIA-AUS
3h 04mnonstop
$91Frontier
Find Deal
Fri, Sep 5 - Mon, Sep 8
American Airlines Logo
6:20 pm - 10:09 pmAUS-MIA
2h 49mnonstop
American Airlines Logo
8:29 am - 10:31 amMIA-AUS
3h 02mnonstop
$145American Airlines
Find Deal
Thu, Sep 25 - Sun, Sep 28
American Airlines Logo
5:14 am - 9:07 amAUS-MIA
2h 53mnonstop
American Airlines Logo
8:29 am - 10:31 amMIA-AUS
3h 02mnonstop
$146American Airlines
Find Deal
Thu, Aug 21 - Mon, Aug 25
Southwest Logo
1:35 pm - 5:25 pmAUS-MIA
2h 50mnonstop
Southwest Logo
8:00 am - 9:55 amMIA-AUS
2h 55mnonstop
$159Southwest
Find Deal
Wed, Sep 3 - Fri, Sep 5
Southwest Logo
3:00 pm - 9:10 pmAUS-MIA
5h 10m1 stop
Southwest Logo
8:00 am - 9:55 amMIA-AUS
2h 55mnonstop
$162Southwest
Find Deal
Thu, Nov 13 - Sun, Nov 16
 Logo
6:51 pm - 10:31 pmAUS-MIA
2h 40mnonstop
 Logo
11:07 am - 7:43 pmMIA-AUS
9h 36m1 stop
Mon, Dec 15 - Wed, Dec 17
 Logo
10:48 am - 2:31 pmAUS-MIA
2h 43mnonstop
 Logo
11:07 am - 7:43 pmMIA-AUS
9h 36m1 stop
Fri, Aug 22 - Mon, Aug 25
Delta Logo
1:28 pm - 8:12 pmAUS-EYW
5h 44m1 stop
Delta Logo
6:20 pm - 12:18 amEYW-AUS
6h 58m1 stop
$259Delta
Find Deal
Sat, Aug 16 - Sat, Aug 23
Delta Logo
11:47 am - 8:12 pmAUS-EYW
7h 25m1 stop
Delta Logo
7:00 am - 1:47 pmEYW-AUS
7h 47m1 stop
$260Delta
Find Deal
Booking Insights

KAYAK's insights & trends for Austin to Florida Keys flights

Get data-powered insights and trends into flights from Austin to Florida Keys to help you find the cheapest flights, the best time to fly and much more.

Can I save money by flying with a layover from Austin to Florida Keys?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $713, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Austin to Florida Keys?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Austin to Florida Keys, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Austin to Florida Keys is September, when tickets cost $246 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $455 and $419 respectively.

What’s the cheapest day of the week to fly from Austin to Florida Keys?

The average price of all round-trip flights from Austin to Florida Keys clicked on KAYAK for each day over the last 12 months.

For Austin to Florida Keys, Friday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Florida Keys back to Austin, the best deals are generally found on Thursday, with Sunday being the most expensive.

How far in advance should I book a flight from Austin to Florida Keys?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Austin to Florida Keys, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Austin to Florida Keys, you should book around 3 weeks before departure, which saves you about 34% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonApril
Cheapest flight$42
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Austin to Miami

FAQs - booking Florida Keys flights

  • How does KAYAK find such low prices on flights from Austin to Florida Keys?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Austin to Florida Keys.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Austin to Florida Keys?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Austin to Florida Keys is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Austin to Florida Keys?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Austin to Florida Keys with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Austin to Florida Keys?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Austin to Florida Keys up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Florida Keys?

    The cheapest time of day to fly to Florida Keys is generally in the morning, when round-trip flights cost $559 on average. Morning departures are around 10% cheaper than evening flights, on average. The most expensive time of day to fly to Florida Keys is generally in the evening, which is peak travel time and where the average cost of a ticket is $619.

Top tips for finding cheap flights to Florida Keys

  • Looking for a cheap flight? 25% of our users found tickets from Austin to the following destinations at these prices or less: Miami $186 one-way - $288 round-trip

Reviews of the top 5 airlines serving from Austin to Florida Keys

 
See real verified KAYAK customer reviews for airlines flying from Austin to Florida Keys. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Austin to Florida Keys? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4241 reviews
8.1Boarding
7.0Food
7.5Entertainment
8.0Comfort
8.6Crew
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

I'm not a fan of Southwest's model. I don't like the herding style of boarding.

Flight crew and cabin crew were great. I had to rearrange flights because my original flight was 3hrs delayed for weather, the rub is the flight I moved to boarded on time then we sat at the gate for 2 hours because scheduling stole our first officer for another flight, TWICE. Then our actual FO was an hour delayed. To make it worse my original flight went from a 3 hour delay to departing 15min EARLY. Just poor scheduling operations all around.

Bring back peanuts Take our drink orders when were all seated, especially after you switch to assigned seating.

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

Plz don't take away free bags and free seating

Plane late from DC to Austin 30 minutes. Crew made up much of the time enroute to San Diego.

Excellent! Only question is how we check in at exactly 24 hours in advance and end up at the end of the B boarding group

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

this crew didn't care much. bumping carts into seats more times than i care to remember

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

I am very bothered by the events today. I can't believe the flight attendants allowed someone to take my seat and made me move. It was embarrassing. I was in the right. The lady just didn't want move. I can't believe delta would allow this to stand and disrespect my rights as a passenger. The lady complained about her leg and that she couldn't move. Firstly somehow she was able to make it to row 24. Not sure how much her leg could have hurt. Secondly, I'm in plenty of pain myself. I just finished chemotherapy a several weeks ago. My body is constantly sore. Yet deltas flight attendants didn't appropriately protect my rights. In the end they found me a seat on the plane but I want to understand how delta can operate this way. They in essence allowed a bully to get their way.

Crew was friendly Love the entertainment in the seat head rest.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

Flight delays numerous times. Everytime we would get close to boarding it would be delayed again. Strung along the entire time.

This flight never occurred because AA couldn’t get their act together.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

During service there was a garbage/beverage spill near our seats that never was cleaned up. On a relatively short flight when we’re fortunate enough to actually have in flight movies available, the flight attendants pitching the AADVANTAGE credit card shouldn’t talk for the last 10 minutes of the flight so that we miss the end of the movie.

Waited on the runway for takeoff for 2.5 hours. Air traffic rerouted us. The plane didn't have enough fuel, so had to go back to the gate. Had to wait for a new pilot. Should have landed at 5:22. Didn't land until 9:10. Trash flight.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

Would have thought that they would gas up plane before everyone got on board

Fine. On time, cabin service was fine, bag arrived. All good. Flying into DCA so did not collide with any helicopters, which is also good. Horrid incident that could have and should have been prevented.

The flight was 3.5 hrs delayed. I was not notified prior to arriving to the airport via spirit app. or via boarding pass that I already had loaded on my phone. The agent that i saw at the counter didn’t mention anything about the delay either. I only saw the update after logging in to my email account.

The staff was very sarcastic, the flight was delayed. There was no wi-fi o any type of entertainment. The plane was dirty and we have to wait a long time for the luggage to come out.

Booked through kayak, everything seemed normal but when it came time to go, my flight ticket didn’t exist, so I had to purchase another set of tickets at the airport the day of the flight, for about double. When I reached kayaks customer service, they claimed no responsibility, and pushed me onto another 3rd party booking service, airfare assist, where I have had no luck getting any kind of help or refund. I’ve used kayak many times, but I’ll never again after I’ve been burned by this.

The air fares are good, Charging me for every single thing 😩

I am very happy with my experience with Spirit Airlines. Both flights were on time. Boarding was very pleasant. Crew was very nice. Flights were amazing and we even arrived earlier than the schedule time. I am hoping Spirits keeps on having non stop flight from Ft Lauderdale to Hartford for many years to come.

you guys canceled my flight last minute and lost my luggage.

Didn't like size of seats. Found charges for checked luggage and carry on too high

Great! We boarded on time! Everything went so smoothly! The flight was so smooth

Prepaid for 1 bag but my prior airline did not provide it to me in time to check it with Spirit and I could not get my $75 refunded.

Plane delayed which seems to be the norm with spirt. Everything is an up charge. I had to pay an additional fee because I was late getting back to my car. Will never fly spirit again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

We were delayed three times ,and that destroyed my plans, and reservations

2 hour delay due to late plane, wrong size plane causing overbooking, and people getting off and on the plane after boarding was completed.

Since you have to pay for overhead bags then they shouldn't be running out of space and asking individuals who paid to remove stuff from the overhead

Book with frontier airlines with the mentality that they'll cancel your flight, kick you off and lose your luggage. Anything besides that is a win. Compare prices with other airlines (to include luggage) and if frontier is still worth it, book it but know all of their policies.

You get what you pay for nothing essentially but a hard uncomfortable seat that doesn’t recline and kids screaming all around you and chaotic boarding and limited check bag weight allowance when compared to other airlines

The reps working at the airport counter were dumber than a second coat of paint.

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

Landing in terminal 2, but my luggage is terminal 3. We (and others) were looking for it in terminal 1. We probably missed the crew broadcast, but the communication could have been clearer for non native (or elderly) passengers.

I chose the seats when booked the flight and paid for them. However after checking in I found we were assigned different seats!

Everything you need to know for your flight to Florida Keys

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.