$76 Find Cheap Flights from Charleston 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 Charleston to Florida Keys departing on 5/17. 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.
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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 Charleston 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 Charleston to Florida Keys, as well as popular online travel agencies
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Flights Deals

Best Florida Keys Flight Deals from Charleston

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Miami
Miaminonstop$131
Key West
Key West1 stop$337
Miami
Miaminonstop$131
Key West
Key West1 stop$337

Cheap Flights from Charleston to Florida Keys

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Charleston 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.

Recent round-trip flight deals from Charleston to Florida Keys

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Charleston to Florida Keys.
Discover the best prices for you by selecting your travel dates on KAYAK.
American Airlines Logo
7:10 pm - 8:55 pmCHS-MIA
1h 45mnonstop
American Airlines Logo
8:09 am - 9:52 amMIA-CHS
1h 43mnonstop
$131American Airlines
Find Deal
Thu, May 22 - Mon, May 26
American Airlines Logo
10:32 am - 12:18 pmCHS-MIA
1h 46mnonstop
American Airlines Logo
8:09 am - 9:52 amMIA-CHS
1h 43mnonstop
$151American Airlines
Find Deal
Wed, May 21 - Thu, May 22
Delta Logo
12:22 pm - 6:25 pmCHS-MIA
6h 03m1 stop
Delta Logo
5:35 am - 9:31 amMIA-CHS
3h 56m1 stop
$157Delta
Find Deal
Tue, May 13 - Sat, May 17
Delta Logo
10:45 am - 2:54 pmCHS-MIA
4h 09m1 stop
Delta Logo
8:10 am - 1:33 pmMIA-CHS
5h 23m1 stop
$171Delta
Find Deal
Wed, May 21 - Thu, May 22
Spirit Airlines Logo
6:00 am - 7:58 pmCHS-MIA
13h 58m1 stop
Spirit Airlines Logo
8:52 pm - 2:35 pmMIA-CHS
17h 43m1 stop
$218Spirit Airlines
Find Deal
Sat, May 10 - Sun, May 25
Frontier Logo
9:05 am - 8:31 pmCHS-MIA
11h 26m1 stop
Frontier Logo
9:42 pm - 8:05 amMIA-CHS
10h 23m1 stop
$220Frontier
Find Deal
Fri, May 23 - Sun, May 25
Frontier Logo
9:05 am - 5:30 pmCHS-MIA
8h 25m1 stop
Frontier Logo
9:42 pm - 8:00 amMIA-CHS
10h 18m1 stop
$231Frontier
Find Deal
Fri, Jun 6 - Thu, Jun 12
Southwest Logo
8:55 am - 4:15 pmCHS-MIA
7h 20m1 stop
Southwest Logo
6:15 am - 4:45 pmMIA-CHS
10h 30m2 stops
$234Southwest
Find Deal
Wed, May 28 - Thu, May 29
Spirit Airlines Logo
6:00 am - 12:30 pmCHS-MIA
30h 30m2 stops
Spirit Airlines Logo
8:52 pm - 2:35 pmMIA-CHS
17h 43m1 stop
$241Spirit Airlines
Find Deal
Sat, May 10 - Sun, May 25
Southwest Logo
5:15 pm - 10:00 pmCHS-MIA
4h 45m1 stop
Southwest Logo
7:15 am - 1:15 pmMIA-CHS
6h 00m1 stop
$246Southwest
Find Deal
Sat, May 17 - Tue, May 20
Useful Info

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Charleston 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 Charleston to Florida Keys is September, when tickets cost $187 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $332 and $330 respectively.

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

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

If your flying dates are flexible, you should consider flying to Florida Keys on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Charleston to Florida Keys. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

How far in advance should I book a flight from Charleston 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 Charleston 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 Charleston to Florida Keys, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.


Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$76
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Charleston to Miami

FAQs - booking Florida Keys flights

  • How does KAYAK find such low prices on flights from Charleston 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 Charleston to Florida Keys.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Charleston 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 Charleston 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 Charleston 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 Charleston 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 Charleston 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 $332 on average. Morning departures are around 9% more expensive than evening flights, on average. The most expensive time of day to fly to Florida Keys is generally in the morning, which is peak travel time and where the average cost of a ticket is $555.

Top tips for finding cheap flights to Florida Keys

  • Looking for a cheap flight? 25% of our users found tickets from Charleston to the following destinations at these prices or less: Miami $185 one-way - $333 round-trip

Top 5 airlines serving from Charleston to Florida Keys

 
See real verified KAYAK customer reviews for airlines flying from Charleston 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 Charleston 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 4294 reviews
7.1Food
8.0Comfort
8.6Crew
7.6Entertainment
8.2Boarding
Airline reviews

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

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

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

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

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

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

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

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

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

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

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.

Excellent. Although they used to greet me as a mosaic member and provide a free drink, early boarding helps me to keep coming back to JetBlue.

The inflight system with their wifi is a hot mess and doesn't work. Separately they do, but when you try to do theoretically simple things like pair a device for control it all falls apart

It took 1-1/2 hours to get our luggage after we landed. That to me is unacceptable

Overall was excellent. Will definitely us JetBlue in the future.

The best flight I’ve had in a while. The plane was like 25% capacity, if that. Smoothest boarding and deplaning process I’ve ever experienced. Wish all flights were this smooth.

I like their airplanes because they have plenty of legroom in their seats they always work with me if I have a change of plans on my tickets courteous and I always feel safe flying with them.

Traveling with JetBlue from NYC was convenient as accessing JFK airport was straightforward via the LIRR to the AirTrain. Maneuvering through the terminal was hassle-free, which was a pleasant start to the journey. However, the flight experience itself left much to be desired. The seating arrangement was notably uncomfortable; despite securing a window seat, space felt cramped. This was exacerbated by the middle seat passenger encroaching on my area, which made the flight less enjoyable. Additionally, while the in-flight entertainment system initially seemed like a reprieve, the sound outlet on my seat was inoperable. This issue turned what could have been a manageable three-hour flight into a rather tedious ordeal, as I was unable to use the entertainment system effectively. While JetBlue provided a smooth process in terms of airport logistics, the on-board experience highlighted areas in need of improvement, particularly in terms of comfort and entertainment system maintenance.

The flight crew that we had in our section may have been tired or something. I asked the flight attendant about my son’s screen not working and she spoke down to me like I was stupid. He still had no working screen throughout his flight. The other members had no personality and seemed like they were annoyed when you asked them for something. Definitely took a hit for simple things on my JB experience.

Som delays but overall we almost made it on the original time.

They announced at the last minute that international travelers had to checkin at counter. This created a long line and unnecessary stress.

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.

Checking in at the counter was very disappointing. The lady had a very bad attitude and smart at me. She had no smile, did not greet me by name, or acknowledge me as a valued customer. Poor reflection of the airline.

Miami lounges were overcrowded and we were unable to get in. We only had a short time. But the banks are too tight in all American hubs

I was pleasantly surprised with an upgrade at boarding. I finally had a mostly gluten free food options and a very attentive attendant.

Very poor. Our special services attendant gave us incorrect information. I also was mishandled at landing. There was no wheelchair waiting. I fell deboarding the plane. Appalling!

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.

Terrible! They kept postponing and finally canceled our flight. They canceled so late. We had no other options but to drive to a different city and try to find a new flight to get onto our cruise. We still aren’t there yet and might not make it.

The flight was on time. The seats are very narrow.

No leg room AT all extremely uncomfortable flight water even cost 5 dollars

This was my first experience with Spirit. The flight was originally delayed because of mechanical problems. There was a major storm moving through our area later in the day. Spirit kept changing the gate and taking the plane for other flights. They did this 6 times until we left 7 hours later, right at the worse time. I am sure it is because they originally delayed the flight through their fault. They would have had to pay for everybody's hotel and later flight. It was a money decision. The pilot did an exceptional job flying and landing the plane in horrific weather. It was one of the roughest and shakiest landings that I have ever done in my extensive flying experience. I just can never go through this discount BS again. Spirit gave us a $30 voucher each for next travel and a $12 meal voucher... but that's nothing compared to sitting in an airport for 7 hours.

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