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$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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — EYW
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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Cheap 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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$150
(Kiwi.com)

One-way from

$78
(Breeze Airways)

Popular in

March

Cheapest in

September

Average price

$436
Provider with most accurate pricing for Charleston-Key West flight deals.
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Provider most trusted by Cheapflights users for Charleston-Key West flights.
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From Charleston to Key West
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One-way flight from Charleston to Key West
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($98 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find 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 January 15, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/58:59 pm
CHS
-
EYW
1 stop12h 10m
Breeze Airways
Mon 2/91:06 pm
EYW
-
CHS
1 stop19h 32m
Breeze Airways
Deal found 1/14$150
This Breeze Airways deal was found by Cheapflights users on 1/14. 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.
Sun 2/223:01 pm
CHS
-
EYW
1 stop21h 25m
Breeze Airways
Fri 2/279:49 am
EYW
-
CHS
1 stop12h 04m
Breeze Airways
Deal found 1/14$171
This Breeze Airways deal was found by Cheapflights users on 1/14. 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.
Sun 2/13:01 pm
CHS
-
EYW
1 stop21h 25m
Breeze Airways
Thu 2/511:01 am
EYW
-
CHS
1 stop10h 58m
Breeze Airways
Deal found 1/14$173
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 1/223:01 pm
CHS
-
EYW
1 stop21h 25m
Breeze Airways
Thu 1/2910:06 am
EYW
-
CHS
1 stop22h 37m
Breeze Airways
Deal found 1/15$202
This Breeze Airways deal was found by Cheapflights users on 1/15. 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 3/91:39 pm
CHS
-
EYW
1 stop22h 42m
Breeze Airways
Fri 3/139:49 am
EYW
-
CHS
1 stop12h 04m
Breeze Airways
Deal found 1/15$208
This Breeze Airways deal was found by Cheapflights users on 1/14. 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.
Wed 6/34:34 pm
CHS
-
EYW
1 stop18h 51m
Breeze Airways
Sun 6/712:05 pm
EYW
-
CHS
1 stop20h 38m
Breeze Airways
Deal found 1/14$219
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Sat 2/285:16 pm
CHS
-
EYW
1 stop17h 05m
Breeze Airways
Thu 3/54:22 pm
EYW
-
CHS
1 stop5h 37m
Breeze Airways
Deal found 1/14$220
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 2/58:59 pm
CHS
-
EYW
1 stop12h 10m
Multiple Airlines
Sun 2/810:27 pm
EYW
-
CHS
1 stop23h 26m
Multiple Airlines
Deal found 1/14$221
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Sat 3/75:16 pm
CHS
-
EYW
1 stop21h 26m
Breeze Airways
Wed 3/1111:51 am
EYW
-
CHS
1 stop20h 47m
Breeze Airways
Deal found 1/14$228
This Breeze Airways deal was found by Cheapflights users on 1/14. 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.
Sat 5/25:16 pm
CHS
-
EYW
1 stop17h 05m
Breeze Airways
Thu 5/712:05 pm
EYW
-
CHS
1 stop20h 38m
Breeze Airways
Deal found 1/14$230
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 3/88:59 pm
CHS
-
EYW
1 stop12h 10m
Breeze Airways
Fri 3/139:49 am
EYW
-
CHS
1 stop12h 04m
Breeze Airways
Deal found 1/14$234

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 January 15, 2026.
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

Sun 2/22

3:01 pm-12:26 pm

1 stop21h 25m

Key West

Fri 2/27

9:49 am-9:53 pm

1 stop12h 04m

$171

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sun 2/1

3:01 pm-12:26 pm

1 stop21h 25m

Key West

Thu 2/5

11:01 am-9:59 pm

1 stop10h 58m

$173

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 6/3

4:34 pm-11:25 am

1 stop18h 51m

Key West

Sun 6/7

12:05 pm-8:43 am

1 stop20h 38m

$219

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 2/5

8:59 pm-9:09 am

1 stop12h 10m

Key West

Sun 2/8

10:27 pm-9:53 pm

1 stop23h 26m

$221

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sat 5/2

5:16 pm-10:21 am

1 stop17h 05m

Key West

Thu 5/7

12:05 pm-8:43 am

1 stop20h 38m

$230

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Fri 2/6

8:28 pm-10:09 am

1 stop13h 41m

Key West

Sun 2/8

9:46 am-8:43 am

1 stop22h 57m

$236

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sat 3/7

5:16 pm-9:21 am

1 stop16h 05m

Key West

Fri 3/13

9:49 am-9:53 pm

1 stop12h 04m

$236

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 2/5

8:59 pm-9:09 am

1 stop12h 10m

Key West

Sun 2/8

9:46 am-8:43 am

1 stop22h 57m

$238

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 4/23

7:00 am-11:17 am

1 stop4h 17m

Key West

Wed 4/29

11:51 am-8:38 am

1 stop20h 47m

$242

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 2/12

6:35 pm-1:30 pm

1 stop18h 55m

Key West

Thu 2/19

11:01 am-9:59 pm

1 stop10h 58m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

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 January.
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 January 9, 2026.

The best time to book flights from Charleston to Key West is 45 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 $259). 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.

How much does it cost to fly round-trip from Charleston to Key West?

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 January 15, 2026.
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
8.1
Very good
258 reviews

Entertainment

6.7

Food

6.7

Comfort

8.2

Boarding

8.3

Overall

8.1

Crew

8.7

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
258 reviews
Breeze Airways
8.1
Very good
258 reviews

Entertainment

6.7

Food

6.7

Comfort

8.2

Boarding

8.3

Overall

8.1

Crew

8.7

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
8,049 reviews
Breeze Airways
8.1
Very good
258 reviews

Entertainment

6.7

Food

6.7

Comfort

8.2

Boarding

8.3

Overall

8.1

Crew

8.7

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
7.2
Good
11,134 reviews
Breeze Airways
8.1
Very good
258 reviews

Entertainment

6.7

Food

6.7

Comfort

8.2

Boarding

8.3

Overall

8.1

Crew

8.7

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 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 79% 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 $259). 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

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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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Breeze AirwaysCheapest$95Average$211FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$242Average$498FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$500FlexibilityNo cancel feeOn-time71%

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