$109 Find Cheap Flights from Austin to Florida Keys - Compare and Save

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 8/28. 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, 0 bags

Save 20% or more on flights. Compare deals from all over the web.

Never overpay with our price tracking tools.

Filter searches by price, airline and more to find your best flights.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Austin to Florida Keys

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Miami
Miami1 stop$228
Key West
Key West1 stop$248
Miami
Miami1 stop$228
Key West
Key West1 stop$248

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

Fri, Aug 21 - Sun, Aug 23
Frontier Logo
6:15 am - 4:52 am
AUS
-
MIA
21h 37m
1 stop
Frontier Logo
6:00 am - 11:41 pm
MIA
-
AUS
18h 41m
1 stop
$228Frontier
Fri, Aug 14 - Tue, Aug 18
Frontier Logo
2:25 pm - 5:51 am
AUS
-
MIA
14h 26m
1 stop
Frontier Logo
8:10 am - 4:39 pm
MIA
-
AUS
9h 29m
1 stop
$228Frontier
Sat, Sep 12 - Wed, Sep 23
Multiple Airlines Logo
10:58 am - 10:19 am
AUS
-
EYW
22h 21m
1 stop
Multiple Airlines Logo
10:04 am - 5:48 pm
EYW
-
AUS
32h 44m
2 stops
$248Multiple Airlines
Sat, Sep 12 - Wed, Sep 23
Multiple Airlines Logo
10:58 am - 10:19 am
AUS
-
EYW
22h 21m
1 stop
Multiple Airlines Logo
10:04 am - 5:48 pm
EYW
-
AUS
32h 44m
2 stops
$250Multiple Airlines
Sat, Aug 22 - Tue, Aug 25
American Airlines Logo
6:02 pm - 10:00 pm
AUS
-
MIA
2h 58mnonstop
American Airlines Logo
3:00 pm - 5:05 pm
MIA
-
AUS
3h 05mnonstop
$261American Airlines
Sat, Aug 29 - Sat, Sep 5
American Airlines Logo
5:05 am - 8:59 am
AUS
-
MIA
2h 54mnonstop
American Airlines Logo
8:05 am - 10:06 am
MIA
-
AUS
3h 01mnonstop
$261American Airlines
Thu, Sep 17 - Mon, Sep 21
Delta Logo
8:30 am - 12:21 pm
AUS
-
MIA
2h 51mnonstop
Delta Logo
7:25 pm - 9:35 pm
MIA
-
AUS
3h 10mnonstop
$261Delta
Thu, Oct 22 - Sat, Oct 31
Delta Logo
8:35 am - 12:26 pm
AUS
-
MIA
2h 51mnonstop
Delta Logo
7:35 pm - 9:51 pm
MIA
-
AUS
3h 16mnonstop
$261Delta
Thu, Aug 27 - Thu, Sep 3
Southwest Logo
7:25 am - 4:10 pm
AUS
-
MIA
7h 45m
1 stop
Southwest Logo
12:05 pm - 2:05 pm
MIA
-
AUS
3h 00mnonstop
$271Southwest
Sat, Aug 29 - Thu, Sep 3
Southwest Logo
12:40 pm - 4:30 pm
AUS
-
MIA
2h 50mnonstop
Southwest Logo
6:25 pm - 11:10 pm
MIA
-
AUS
5h 45m
1 stop
$271Southwest
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.

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

The average price for all round-trip flights from Austin to Florida Keys depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Florida Keys is generally at night, when round-trip flights cost $105 on average. Morning departures are around 8% 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 $520.

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 $418, 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 $218 (return) on average. On the other hand, the most expensive months are June and May, when the average cost of round-trip tickets is $347 and $327 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, Sunday is the cheapest day to fly on average and Tuesday 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 2 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

February

Cheapest flight

$109
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 48% increase in price.
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.

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 $215 one-way - $391 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 4227 reviews
8.1Boarding
7.0Food
8.6Crew
8.0Comfort
7.5Entertainment
Airline reviews

Great job! My family doesnt fly often but we felt safe 100%

10.0 ExcellentK, Jun 2026
AUS - MCI
Read more Southwest reviews

Great job! My family doesnt fly often but we felt safe 100%

The new seat assignment thing is wierd. If you don’t pay for a seat they always assign you a middle seat regardless of how many people are on the flight. Idk… the new company that bought Southwest is trying to make it more profitable, but I’m just not seeing it. The flight attendants aren’t having as much fun anymore. It just feels like the airline is slowly dying. IMO. We shall see if Southwest is the next Toy’s R Us.

The Air hostess were very rude on my flight from Houston to Austin . Their regular communication itself felt a they are shouting at people.

AC sub par. WiFi not working correctly. Ac sucked. Seats very narrow.

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.

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

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

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

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

With early bird check in, I might start flying southwest again.

delta wifi wouldn’t work boarding was not in sequence flight crew spent most of their time on the phone with the lights off pretending no one wanted or needed anything

flight was delayed 4+ hours. there was really no understanding of why? weather? the last hour of delay was post boarding. pilot seat was broken. was that the real reason? nonetheless, long day of inconveniences.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

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.

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

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

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.

Flight was delayed. Had to get rebooked. Diamond medallion but stuck in a crappy seat. Rebooked flight then got delayed again. Then when we finally boarded, we waited another hour for a new crew. Then landed in JFK and sat for another 40 minutes waiting for a crew to come to the gate to be able to deplane. Hot mess all around, which unfortunately is becoming the norm for Delta

Our flight to Zurich was delayed by almost 3 hours, so we missed our next flight. There was no indication it would be delayed this much. We were told the gate had changed and then it apparently took over 2 hours to load the "catering" on the plane. We were not compensated in any way for the trouble.

I liked the entertainment on JetBlue, the service from JFK to JAX was terrible at best

I usually dont fly JeTBlue and I dont think I will ever do it again. The flight was delayed fee time, nobody was giving us any info at at the airport, gate changing, the slowest and poorly organized boarding ever, rude staff.. huh

Like the variety of entertainment options. One crew member was a little on the rough/rude side. Boarding was a mess, attendants didn't do a great job of helping with the luggage storage and it delayed us a couple of minutes.

Flight is delayed by more than an hour without any reason, the jet blue gates kept changing every 20 mins and there is no proper communication. No ear phones provided in flight, there is a screen with entertainment but what is the use, I have earphones but the console has outdated audio connections, no usb C or bluetooth, they are living 15 years behind

Flight was cancelled, no support at JFK even though it is their main hub.. wait times on the phone was very long

I liked the punctuality, the crew, and overall the whole flight

When I agreed to give up my two seats because of overbooking by the airline, I should have been offered some sort of reward or credit towards a future flight. I was not. It was not until the next day when I mentioned it to a Jet Blue employee that I was advised to call 1-800-JetBlue. So here I am, having done Jet Blue a favor and I had to do the work to find out if I was going to get a credit. Such service

It's not JetBlues fault but there was a smell on the plane (possibly other travelers) and 3 children behind me that never quit whining. Soccor fans that were very loud. Pilot brought the plane down from high altitude quickly, dropping us hu dress of feet at a time. I've never felt that intense of dropping on other airlines (usually fly Southwest Airlines). But I arrived safely and I'm thankful for that.

Seats were great, the staff was great, and the food was about the best I've had on a plane, and is especially the best of any US-based carrier I've flown. Free Wi-Fi was also great.

Jet blue just had great service overall! Only a little turbulence heading out of Austin, otherwise the jet stream helped the speed of the trip!

It was good overall but when I book my flight and seat through Kayak, AA will at times change those seats during check-in time which I don’t understand why. I always book aisle seats and had to sit at window for my flight to Austin this trip.

Nothing, I wont be flying American Airlines again and will not be recommending anyone to fly American Airlines. It was the worst experience flying I've ever had.

Short hop but nice crew, efficient processes and all very timely

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

AA did not allow to board a flight because my connecting flight from DFW had been canceled. I got on another flight to another city. No service on the plane and I did not use their entertainment system.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

American almost always Delays flights from Austin to Dallas and back. I cannot believe they have such poor service on this route. I was about to switch to American from Delta, but they gave me enough reasons not to.

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

Domestic airlines have really fallen from what they used to be.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

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.

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.

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.

Boarding was organized and flight was on time. Overall very satisfied with my flight.

The boarding gate was in Terminal D, but the Frontier counter was in Terminal E. So I had to move back and forth between terminals to check in my luggage. This was the worst experience that I had in terms of flights.

Airline changed the gate from Terminal A to Terminal D which is quite far and only sent a text message few minutes before boarding. Around 50 people missed their flight and as plane didn’t wait for them.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Frontier is a mess. Kept changing flights and times on me. Ridiculous. Charged us twice for annual Discout Den membership.

Everything you need to know for your flight to Florida Keys

Information on your arrival and departure airports