$58 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 8/24. 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
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Best Florida Keys Flight Deals from Austin

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Miami
Miaminonstop$116
Key West
Key West1 stop$191
Miami
Miaminonstop$116
Key West
Key West1 stop$191

Cheap Flights from Austin to Florida Keys

 
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, Jul 13 - Thu, Jul 17
Frontier Logo
10:38 am - 2:33 pmAUS-MIA
2h 55mnonstop
Frontier Logo
7:43 am - 9:42 amMIA-AUS
2h 59mnonstop
$116Frontier
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Sun, Jul 13 - Thu, Jul 17
Frontier Logo
10:38 am - 2:33 pmAUS-MIA
2h 55mnonstop
Frontier Logo
7:43 am - 9:42 amMIA-AUS
2h 59mnonstop
$118Frontier
Find Deal
Tue, Aug 5 - Fri, Aug 8
American Airlines Logo
3:40 pm - 7:40 pmAUS-MIA
3h 00mnonstop
American Airlines Logo
3:30 pm - 5:28 pmMIA-AUS
2h 58mnonstop
$164American Airlines
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Mon, Jul 21 - Fri, Jul 25
American Airlines Logo
6:13 pm - 10:05 pmAUS-MIA
2h 52mnonstop
American Airlines Logo
8:00 am - 9:57 amMIA-AUS
2h 57mnonstop
$169American Airlines
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Sun, Aug 10 - Fri, Aug 15
Southwest Logo
2:25 pm - 6:15 pmAUS-MIA
2h 50mnonstop
Southwest Logo
8:00 am - 9:55 amMIA-AUS
2h 55mnonstop
$214Southwest
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Mon, Jul 7 - Wed, Jul 9
Delta Logo
3:00 pm - 9:18 pmAUS-MIA
5h 18m1 stop
Delta Logo
7:23 pm - 12:14 amMIA-AUS
5h 51m1 stop
$217Delta
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Tue, Oct 7 - Tue, Oct 14
Delta Logo
4:59 pm - 12:52 amAUS-MIA
6h 53m1 stop
Delta Logo
12:05 pm - 6:36 pmMIA-AUS
7h 31m1 stop
$219Delta
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Wed, Jun 25 - Wed, Jul 2
Southwest Logo
5:25 am - 3:40 pmAUS-MIA
9h 15m2 stops
Southwest Logo
1:45 pm - 3:45 pmMIA-AUS
3h 00mnonstop
$228Southwest
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Fri, Sep 5 - Sat, Sep 13
Spirit Airlines Logo
6:00 am - 3:56 pmAUS-MIA
8h 56m1 stop
Spirit Airlines Logo
1:07 pm - 5:13 pmMIA-AUS
29h 06m1 stop
$265Spirit Airlines
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Wed, Jul 9 - Mon, Jul 14
Spirit Airlines Logo
7:15 am - 4:53 pmAUS-MIA
32h 38m2 stops
Spirit Airlines Logo
7:00 am - 3:29 pmMIA-AUS
9h 29m1 stop
$278Spirit Airlines
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Useful Info

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 $716, 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 $241 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $459 and $437 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. For the absolute cheapest price, our data suggests you should book 4 weeks before departure.


Good to know

Low seasonApril
High seasonJuly
Cheapest flight$58
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 7% 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 at night, when round-trip flights cost $222 on average. Morning departures are around 6% cheaper than evening flights, on average. The most expensive time of day to fly to Florida Keys is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $633.

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 $140 one-way - $350 round-trip

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 4287 reviews
7.1Food
8.2Boarding
8.0Comfort
7.6Entertainment
8.6Crew
Airline reviews

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

6.0 GoodVincent, May 2025MDW - MCO
Read more Southwest reviews

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

Fine, but how to board on SW versus othrr airlines, is just lame. Goood staff though and all was solid otherwise.

It went well. Plane wasn't full. Will be great when assigned seating is in place

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. ❤️

Other then mechanical/ computer problem and 3.5 hours flight delay the flight was great. I guess that what happened when you fly an old airplane now a day.

Don't waste your money or points on first class. Delta first class is a joke. The seats were rickety, the food was awful, and nothing worked, wifi, my light, the power plug - and it was dirty - the fold out table was gross. For 2-3 hours, tough it out in Economy.

Delay getting into gate in ATL caused delay in bags when getting to BWI, disrupting evening plans with family.

6 hour delay including one after we were boarded. Horrible experience.

Loyal Delta traveler, but last nights flight was a train wreck. Seated in 1B after multiple delays. Then we couldn’t takeoff because of an issue with the passenger that was ‘not in compliance’ and had to deplane along with the threat if they did not deplane, all the passengers would be required to do so. Finally they were escorted off, but the experience threw off the crew. Disruptive for everyone. Service was a mess, televisions didn’t work, bathroom door kept swinging open during the entire flight whenever empty …

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.

Standard. No different than a discount carrier on a short trip.

The flights were terribly delayed and then cancelled which forced us booking another night at the hotel. Very poor management from American Airlines

Crew was late. Baggage was late. 2hs inside the plane waiting fro de-icing and traffic. A 3:30hs flight ended up being almost 6hs inside the airplane.

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

It was horrible. We were not allowed on the flight by spirit staff at the gate during boarding because I had a guitar. The same guitar I had at check in which I paid for and they said I can take it on the plane. We missed our flight, lost our luggage, and had to pay another $900 to rebook flights. Worst travel experience ever and spirit staff are the worst staff ever.

My experience with spirit was terrible. Customer service was terrible. Flight got canceled abruptly with no accommodations made for the inconvenience or any sort of help. I was unable to rebook a new flight.

The flight attendant spilled ice all down my leg and all over my suede boots and didn’t even apologize or anything. They just gave me a look like “what?!” Incredibly rude and dismissive. I saw them roll their eyes at other guests and even once yell at a lady with a baby.

It’s what we expected from Spirit..reasonable cost, good for a 2-3 hour flight. Disappointed that we had a 2 hour delay in departure from DFW for a maintenance issue, but the pilot handled it well once we were outbound on a different Airbus.

My experience was okay. The flight did not offer even water without a fee. Also had to pay extra for my carry on, as I was told I had to check my bag, even though it said I had the option to carry on a bag when booking. This costed me an extra $100. Would likely not fly with Spirit again.

The flight was rescheduled several times without a reason for the schedule changes. I had to be in New Orleans at a certain time and it was just easier to drive at a certain point. I don’t know if the flight ever left. This is my first experience with Spirit Airlines and is also the last.

In a word, it was horrible. The flight crew timed out and this, apparently was not accounted for by management. This meant that our 10:15 departure turned into a 1:30am departure the next DAY!!! And some brainchild decided to email us 12$ food vouchers set to expire the 9th, but they sent them after EVERY VENDOR WAS CLOSED in the Miami airport and obviously none would be open in New Orleans. I found this to be another sterling example of, at best, shitty management…at worst an absolute lack of empathy for your customers. Triplt Pro: Check-in may be avail for NK222 dep MIA 4/8/2025 10:16pm. Conf#RGSUMI. https://tripit.com/t/. e106fd644e0a; Today 6:16 PM TripIt Pro: NK222 ON TIME. MIA dep 10:16pm term C, gate F5. MSY arr 11:38pm. Today 8:59 PM Tript Pro: NK222 DELAYED. MIA dep 1:00am term C, gate F5. MSY arr 2:18am. Alternate flights: https:// www.tripit.com/t/b2903869f438 Triplt Pro: NK222 PULLED IN. MIA dep 12:30am term C, gate F5. MSY arr 1:48am. Alternate flights: https:/// www.tripit.com/t/834d176c630b Tript Pro: NK222 DELAYED. MIA dep 1:00am term C, gate F5. MSY arr 1:48am. Alternate flights: https:/// www.tripit.com/t/0441e41a9dd3 Triplt Pro: NK222 PULLED IN. MIA dep 12:30am term C, gate F5. MSY arr 1:48am. Alternate flights: https:// www.tripit.com/t/92ac2157ef54 The sender is not in your contact

Perfect for the money paid. Flight from Indianapolis to Fort Lauderdale. Very courteous airport staff and crew. The boarding process went very smooth. Indianapolis was in the middle of several sever storms, delaying boarding and they found a window between the storms, asked everyone for a quick boarding and we departed before we would be held longer by the next storm front. A little rough air 20 min or so after take off, however I’ll take that to being grounded the whole night. Seats kind of small, kind of hard, but very doable for the 2.5 hrs flight. Snacks and drinks available for purchase. We didn’t, as it was a late night flight. One of the checked luggage came wet in Florida and clothes inside got wet from the water that infiltrated through the zipper, I’m assuming it was in the rain in Indianapolis, I cannot blame Spirit as I think the baggage handlers are hired by the airport. I’ll be more careful next time, as I have suitcases that are more water proof and maybe I should only purchase that kind.

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

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!

It was a no frills flight. Would have liked to be able to charge my device

Seats were extremely uncomfortable and it was very hot on the plane.

Since they are a budget airline, I wasn’t expecting too much but they did some things well. They were on time, the plane was clean, boarding was fairly straightforward and the staff was cheerful and friendly. The only downside was comfort. The seats were fairly hard and after a 2 hour flight your rear end is not feeling so great. Maybe a little more cushion in the seats, Frontier!

The airline used deceptive tactics to charge us more for our trip. Search Frontier Class Action Lawsuit to find out more or read the hundreds of reviews that have nearly identical stories.. don't fly this airline.. you've been warned.

Check in at Philadelphia international was absolutely terrible! I fly 2 to 3 times a month and avoid frontier at all cost and will never fly Frontier again! The night before travel, I tried checking in however, the app was giving me an error, so I went to the desktop, which instructed you that you need to use the app. The next day I presented at the check-in gate after trying at least a half dozen times prior to getting into the airport and continuing to getting the error in the app. I actually had rebooted my phone numerous times and reinstall the app just in case. My phone is only one generation older than the current model. It has no problems completing a frontier flight purchase or any other app issues. There was only three frontier employees working at check-in and a huge line while I was in line I continued to try and check in via the app. As I approach the desk, I was dreading dealing with the agent. He was extremely unprofessional, anti-semantic & very ignorant, and mean to the people in front of me, as well as the people who ended up being behind me. He literally told people “Man I don’t care bout y’all” in his native dialect! Maintaining my composure I approached and explained the situation. To which he replied, you’re gonna have to pay then! I don’t understand. It’s an issue with their app not allowing me to check in! Not my issue! He told me if I pay cash it would be $15, $25 if I pay credit card. I don’t understand a $10 difference for paying with a credit card? I am completely cashless so I continued to try using the app to avoid the $25 fee, Which I still don’t believe that I should be responsible for since it was Frontier’s technical issue!!! I continued to check in via the app a couple more times after he verified I was doing everything right he proceeded to continue to belittle the people behind me. Yelling at them saying I don’t care about you people! I cannot believe that this is the way that businesses would treat its customers! Unfortunately, the black mail with dreadlocks did not have a name tag all he had was a frontier sweater on! For the $25 fee that I ended up getting charged on my credit card. I should’ve just booked originally with Spirit or any other carrier! I have no problem paying fees that I should be responsible for, but when it’s due to a technical failure of a company, the customer should not be responsible for it! I cannot believe that it’s not frontier going out of business!

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