HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$78+ Cheap flights from Charleston to Key West (CHS - EYW)

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — EYW
janv. 3 — janv. 101
sam. 1/3
sam. 1/10
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Charleston to Key West with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Charleston to Key West are usually found in September or August, booked 89 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Charleston to Key West

Cheapest flights from Charleston to Key West
Explore the most affordable flight options available from Charleston to Key West. Find the lowest fares from popular airlines and budget airlines, with prices last updated on décembre 4, 2025.

This Breeze Airways deal was found by Cheapflights users on 12/2. 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 Breeze Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/188:53 pmCHS - EYW
1 stop12h 24mBreeze Airways
dim. 12/218:55 amEYW - CHS
1 stop24h 02mBreeze Airways
Deal found 12/2$178
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/234:16 pmCHS - EYW
1 stop18h 23mMultiple Airlines
dim. 12/2810:37 pmEYW - CHS
2 stops22h 46mMultiple Airlines
Deal found 12/2$213
This Kiwi.com deal was found by Cheapflights users on 12/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/309:08 pmCHS - EYW
1 stop9h 59mMultiple Airlines
mer. 1/72:30 pmEYW - CHS
1 stop27h 06mMultiple Airlines
Deal found 12/4$219
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/1810:18 pmCHS - EYW
1 stop15h 12mSpirit Airlines
dim. 12/2112:20 pmEYW - CHS
1 stop9h 03mSpirit Airlines
Deal found 12/2$224
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/89:23 pmCHS - EYW
1 stop13h 42mBreeze Airways
sam. 12/1310:47 amEYW - CHS
1 stop3h 42mBreeze Airways
Deal found 12/2$240
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 12/1810:18 pmCHS - EYW
2 stops14h 12mMultiple Airlines
dim. 12/2112:20 pmEYW - CHS
1 stop9h 03mMultiple Airlines
Deal found 12/2$250
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/2910:18 pmCHS - EYW
1 stop13h 02mSpirit Airlines
ven. 1/22:30 pmEYW - CHS
1 stop6h 53mSpirit Airlines
Deal found 12/2$263
This Kiwi.com deal was found by Cheapflights users on 12/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 12/1910:18 pmCHS - EYW
1 stop15h 12mMultiple Airlines
mar. 12/2310:59 amEYW - CHS
1 stop3h 44mMultiple Airlines
Deal found 12/4$269

Find flight deals from Charleston to Key West

Discover tips and strategies to find the most affordable flight options for your journey from Charleston (CHS) to Key West (EYW). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated décembre 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$144
(Breeze Airways)

One-way from

$78
(Kiwi.com)

Popular in

June

Cheapest in

September

Average price

$532
Provider with most accurate pricing for Charleston-Key West flight deals.
Search Deals
Provider most trusted by Cheapflights users for Charleston-Key West flights.
Search Deals
From Charleston to Key West
Search Deals
One-way flight from Charleston to Key West
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($28 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Charleston to Key West 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 décembre 4, 2025.
Use the filters below to find and compare flights from Charleston to Key West that are best for you.

Fly from

Charleston

Fly to

Key West

Route

Depart

Return

Price

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 2/5

3:01 pm-12:26 pm

1 stop21h 25m

Key West

lun. 2/9

1:06 pm-8:38 am

1 stop19h 32m

$144

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 12/18

8:53 pm-9:17 am

1 stop12h 24m

Key West

dim. 12/21

8:55 am-8:57 am

1 stop24h 02m

$178

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

ven. 12/19

10:18 pm-1:30 pm

1 stop15h 12m

Key West

lun. 12/22

1:10 pm-8:37 am

1 stop19h 27m

$198

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 1/29

8:59 pm-9:09 am

1 stop12h 10m

Key West

lun. 3/2

1:06 pm-8:38 am

1 stop19h 32m

$222

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 12/18

10:18 pm-1:30 pm

1 stop15h 12m

Key West

dim. 12/21

12:20 pm-9:23 pm

1 stop9h 03m

$224

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 2/5

3:01 pm-12:26 pm

1 stop21h 25m

Key West

lun. 2/9

2:25 pm-8:38 am

2 stops18h 13m

$227

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

lun. 12/8

9:23 pm-11:05 am

1 stop13h 42m

Key West

sam. 12/13

10:47 am-2:29 pm

1 stop3h 42m

$240

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

lun. 12/29

10:18 pm-11:20 am

1 stop13h 02m

Key West

ven. 1/2

2:30 pm-9:23 pm

1 stop6h 53m

$263

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

jeu. 12/25

8:53 pm-9:17 am

1 stop12h 24m

Key West

lun. 12/29

1:10 pm-8:37 am

1 stop19h 27m

$276

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

ven. 12/19

10:18 pm-1:30 pm

1 stop15h 12m

Key West

mar. 12/23

10:59 am-2:43 pm

1 stop3h 44m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

Showing 1-10 of 19 results
1
2

Compare providers for flights from Charleston to Key West

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Charleston to Key West in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Charleston-Key West flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Charleston-Key West flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Charleston-Key West flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Charleston-Key West flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Charleston-Key West flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Charleston to Key West

Have a flexible travel schedule? Discover the best time to fly to Key West from Charleston 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 Charleston to Key West

How far ahead should I book a flight from Charleston to Key West?

Use this chart to determine the optimal time to book a round-trip flight from Charleston to Key West. Price data was last updated on November 28, 2025.

The best time to book flights from Charleston to Key West is 89 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 Charleston to Key West?

Currently, February is the cheapest month in which you can book a flight from Charleston to Key West (average of $64). Flying from Charleston to Key West in April is currently the most expensive (average of $370). 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 CHS to EYW?

Find hourly flight availability from Charleston to Key West. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated décembre 4, 2025.

A simple way to save on the total cost of your ticket is to fly from Charleston to Key West in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the evening.

Reviews of airlines servicing Key West

Get insights into the airlines that provide service to Key West. 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 West. Reviews last updated décembre 4, 2025.
Read through reviews of airlines operating flights from Charleston to Key West, such as Breeze Airways, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.2
Very good
241 reviews

Overall

8.2

Food

6.7

Boarding

8.3

Crew

8.8

Comfort

8.2

Entertainment

6.6

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
Breeze Airways
8.2
Very good
241 reviews
Breeze Airways
8.2
Very good
241 reviews

Overall

8.2

Food

6.7

Boarding

8.3

Crew

8.8

Comfort

8.2

Entertainment

6.6

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
Delta
7.9
Good
8,009 reviews
Breeze Airways
8.2
Very good
241 reviews

Overall

8.2

Food

6.7

Boarding

8.3

Crew

8.8

Comfort

8.2

Entertainment

6.6

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.
American Airlines
7.2
Good
11,044 reviews
Breeze Airways
8.2
Very good
241 reviews

Overall

8.2

Food

6.7

Boarding

8.3

Crew

8.8

Comfort

8.2

Entertainment

6.6

Reviews

1 / 15
8.0
Excellent

Lyle,Dec 2025

BDL - RSW

Seating was comfortable, crew excellent, no food or entertainment offered.

Related info for your journey

Find useful and relevant information for your journey from Charleston to Key West. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Charleston to Key West?

    Breeze Airways can get you from Charleston to Key West in just under 21h 25m. Your travel time can differ by up to . Airlines will cover a distance of 585 mi.

  • What are the cheapest airlines flying from Charleston to Key West round-trip?

    Breeze Airways, at $95, was found to be the cheapest airline from Charleston to Key West.Alternate airlines to your destination round-trip include Delta and American Airlines. Breeze Airways is currently priced 80% below the average price you’ll pay for this route.

  • Can I find deals for flights from Charleston to Key West that include hotel bookings?

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

  • How can I find direct flights from Charleston to Key West?

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

  • Can I find deals for business class flights from Charleston to Key West?

    Yes. Cheapflights offers flight deals from Charleston to Key West 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 Charleston to Key West?

    Currently, February is the cheapest month in which you can book a flight from Charleston to Key West (average of $64). Flying from Charleston to Key West in April is currently the most expensive (average of $370). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Charleston to Key West

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Miami flights
Charlotte to Fort Lauderdale flights
Charlotte to Orlando flights
Charlotte to Tampa flights
Charleston to Miami flights
Charlotte to West Palm Beach flights
Charleston to Fort Lauderdale flights
Columbia to Orlando flights
Charlotte to Fort Myers flights
Charlotte to Sarasota flights
Charlotte to Key West flights
Myrtle Beach to Fort Lauderdale flights
Savannah to Miami flights
Greenville to Miami flights
Charleston to Tampa flights
Columbia to Miami flights
Myrtle Beach to Miami flights
Charlotte to Jacksonville flights
Charleston to Orlando flights
Greenville to Orlando Sanford Intl flights
Myrtle Beach to Orlando flights
Savannah to Fort Lauderdale flights
Greenville to Tampa flights
Columbia to Tampa flights
Charlotte to St Petersburg flights
Myrtle Beach to West Palm Beach flights
Charlotte to Panama City flights
Greenville to Orlando flights
Charleston to Fort Myers flights
Charlotte to Orlando Sanford Intl flights
Savannah to Tampa flights
Myrtle Beach to Key West flights
Greenville to West Palm Beach flights
Columbia to Fort Lauderdale flights
Myrtle Beach to Fort Myers flights
Greenville to Melbourne flights
Columbia to West Palm Beach flights
Greenville to Sarasota flights
Charleston to West Palm Beach flights
Columbia to Key West flights
Greenville to Fort Lauderdale flights
Charlotte to Pensacola flights
Charleston to Sarasota flights
Savannah to Orlando flights
Myrtle Beach to Tampa flights
Charlotte to Melbourne flights
Greenville to Fort Myers flights
Savannah to Key West flights
Savannah to Pensacola flights

Top 3 airlines flying from Charleston to Key West

Discover the top 3 airlines that operate flights from Charleston to Key West. 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 décembre 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$110Average$220FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$286Average$505FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$513FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.