HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$81+ 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — EYW
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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.

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 March 10, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
Wed 3/255:16 pm
CHS
-
EYW
1 stop17h 05m
Breeze Airways
Wed 4/111:51 am
EYW
-
CHS
1 stop20h 47m
Breeze Airways
Deal found 3/7$164
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Thu 8/272:53 pm
CHS
-
EYW
1 stop20h 37m
Breeze Airways
Mon 8/3112:10 pm
EYW
-
CHS
1 stop20h 28m
Breeze Airways
Deal found 3/8$166
This Breeze Airways deal was found by Cheapflights users on 3/9. 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.
Mon 3/308:28 pm
CHS
-
EYW
1 stop15h 53m
Breeze Airways
Mon 4/69:49 am
EYW
-
CHS
1 stop12h 04m
Breeze Airways
Deal found 3/9$167
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Mon 3/238:28 pm
CHS
-
EYW
1 stop15h 53m
Breeze Airways
Fri 3/279:49 am
EYW
-
CHS
1 stop12h 04m
Breeze Airways
Deal found 3/8$168
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Mon 4/278:28 pm
CHS
-
EYW
1 stop15h 53m
Breeze Airways
Fri 5/19:49 am
EYW
-
CHS
1 stop7h 30m
Breeze Airways
Deal found 3/9$172
This Kiwi.com deal was found by Cheapflights users on 3/8. 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.
Sun 3/223:01 pm
CHS
-
EYW
1 stop21h 25m
Breeze Airways
Thu 3/264:22 pm
EYW
-
CHS
1 stop5h 37m
Breeze Airways
Deal found 3/8$176
This Breeze Airways deal was found by Cheapflights users on 3/7. 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.
Mon 4/68:28 pm
CHS
-
EYW
1 stop15h 53m
Breeze Airways
Wed 4/811:51 am
EYW
-
CHS
1 stop20h 47m
Breeze Airways
Deal found 3/7$180
This Breeze Airways deal was found by Cheapflights users on 3/8. 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.
Mon 4/208:28 pm
CHS
-
EYW
1 stop15h 53m
Breeze Airways
Wed 4/2211:51 am
EYW
-
CHS
1 stop20h 47m
Breeze Airways
Deal found 3/8$181
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
Sun 4/193:01 pm
CHS
-
EYW
1 stop21h 25m
Breeze Airways
Thu 4/234:22 pm
EYW
-
CHS
1 stop5h 37m
Breeze Airways
Deal found 3/5$185

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$164
(Kiwi.com)

One-way from

$81
(Breeze Airways)

Popular in

June

Cheapest in

August

Average price

$367
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. 14% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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 March 10, 2026.
Use the filters below to find and compare flights from Charleston to Key West that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 3/25

5:16 pm-10:21 am

1 stop17h 05m

Key West

Wed 4/1

11:51 am-8:38 am

1 stop20h 47m

$165

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Mon 3/30

8:28 pm-12:21 pm

1 stop15h 53m

Key West

Mon 4/6

9:49 am-9:53 pm

1 stop12h 04m

$167

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 6/3

4:34 pm-11:25 am

1 stop18h 51m

Key West

Thu 6/11

12:05 pm-8:43 am

1 stop20h 38m

$211

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Mon 4/6

8:28 pm-12:21 pm

1 stop15h 53m

Key West

Sun 4/12

9:46 am-8:43 am

1 stop22h 57m

$224

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Tue 8/4

4:04 pm-11:06 am

1 stop19h 02m

Key West

Tue 8/11

1:14 pm-3:28 pm

1 stop26h 14m

$224

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sun 5/3

10:48 pm-9:09 am

1 stop10h 21m

Key West

Thu 5/7

12:05 pm-8:43 am

1 stop20h 38m

$272

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 4/22

5:16 pm-3:42 pm

1 stop22h 26m

Key West

Fri 4/24

9:49 am-9:53 pm

1 stop12h 04m

$273

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Tue 4/7

3:01 pm-11:11 am

1 stop20h 10m

Key West

Tue 4/14

1:01 pm-11:35 am

1 stop22h 34m

$284

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sun 5/17

8:20 pm-12:31 pm

1 stop16h 11m

Key West

Fri 5/22

12:10 pm-8:48 am

1 stop20h 38m

$336
Quickest round-trip

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 4/30

10:49 pm-9:09 am

1 stop10h 20m

Key West

Sun 5/3

9:46 am-4:25 pm

1 stop6h 39m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Showing 1-10 of 19 resultsSorted by cheapest first
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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Charleston-Key West flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 March 6, 2026.

The best time to book flights from Charleston to Key West is 26 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, January is the cheapest month in which you can book a flight from Charleston to Key West (average of $78). Flying from Charleston to Key West in April is currently the most expensive (average of $366). 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.

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 March 10, 2026.
Read through reviews of airlines operating flights from Charleston to Key West, such as Breeze Airways,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
271 reviews

Overall

8.1

Food

6.6

Crew

8.7

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Breeze Airways
8.1
Very good
271 reviews
Breeze Airways
8.1
Very good
271 reviews

Overall

8.1

Food

6.6

Crew

8.7

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
Delta
7.9
Good
8,276 reviews
Breeze Airways
8.1
Very good
271 reviews

Overall

8.1

Food

6.6

Crew

8.7

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.
American Airlines
7.1
Good
11,414 reviews
Breeze Airways
8.1
Very good
271 reviews

Overall

8.1

Food

6.6

Crew

8.7

Boarding

8.3

Entertainment

6.6

Comfort

8.2

Reviews

1 / 17
2.0
Mediocre

Justine,Jan 2026

RDU - MCO

1/10, I have never experienced the amount of delays, my flight was supposed to board at 8:34pm, we didn’t board until 3:35am from RDU. The staff got rude and very disrespectful when you asked what was going on it was like we didn’t board until something wrong or were pestering them for answers. I was 1 question 1 time, they were not communicating with us at all. So when our plane was now 6+ hrs delayed and nothing was being said to us .. yeah I think we have a right to ask a question. Everything took so long and was such a process; I have never experienced this before and I’m a frequent flyer, breeze makes spirit airlines look like a 100/10 airline.

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 17h 05m. 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 78% 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, January is the cheapest month in which you can book a flight from Charleston to Key West (average of $78). Flying from Charleston to Key West in April is currently the most expensive (average of $366). 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 Orlando flights
Charlotte to Fort Lauderdale flights
Charlotte to Tampa flights
Charleston to Fort Lauderdale flights
Charlotte to Fort Myers flights
Charlotte to West Palm Beach flights
Charleston to Miami flights
Charlotte to Sarasota flights
Myrtle Beach to Fort Lauderdale flights
Charlotte to Jacksonville flights
Charlotte to Key West flights
Myrtle Beach to Miami flights
Greenville to Miami flights
Columbia to Miami flights
Charlotte to Panama City flights
Charlotte to Pensacola flights
Myrtle Beach to Tampa flights
Columbia to Orlando flights
Savannah to Miami flights
Charleston to Tampa flights
Myrtle Beach to Orlando flights
Charleston to Orlando flights
Greenville to Tampa flights
Greenville to Fort Lauderdale flights
Greenville to Orlando flights
Myrtle Beach to West Palm Beach flights
Greenville to Orlando Sanford Intl flights
Charleston to Pensacola flights
Columbia to Fort Lauderdale flights
Charlotte to Melbourne flights
Greenville to Fort Myers flights
Columbia to Tampa flights
Charleston to Sarasota flights
Savannah to Tampa flights
Greenville to St Petersburg flights
Charleston to West Palm Beach flights
Greenville to Pensacola flights
Charlotte to Gainesville flights
Greenville to Jacksonville flights
Greenville to Sarasota flights
Greenville to Valparaiso flights
Myrtle Beach to Fort Myers flights
Savannah to Fort Myers flights
Greenville to West Palm Beach flights
Myrtle Beach to Sarasota flights
Columbia to West Palm Beach flights
Charlotte to St Petersburg 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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$95Average$204FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$242Average$492FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$296Average$472FlexibilityNo 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.