HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Key West

$104+ 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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHS — EYW
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 July or September, booked 89 days in advance, depart on a Wednesday or Friday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$161
(Kiwi.com)

One-way from

$104
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$598
From Charleston to Key West
Search Deals
One-way flight from Charleston to Key West
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2025
Search Deals

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 June 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 6/11. 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 9/139:05 pmCHS - EYW
1 stop13h 14mBreeze Airways
Wed 9/179:47 amEYW - CHS
1 stop5h 37mBreeze Airways
Deal found 6/11$160
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Sat 6/289:42 amCHS - EYW
2 stops22h 21mMultiple Airlines
Wed 7/23:33 pmEYW - CHS
1 stop23h 03mMultiple Airlines
Deal found 6/11$242
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Fri 7/46:41 pmCHS - EYW
2 stops20h 27mAllegiant Air
Fri 7/115:26 pmEYW - CHS
2 stops14h 40mAllegiant Air
Deal found 6/11$307
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/272:25 pmCHS - EYW
1 stop5h 19mDelta
Sat 10/47:00 amEYW - CHS
1 stop4h 24mDelta
Deal found 6/10$337
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/276:30 amCHS - EYW
1 stop4h 43mAmerican Airlines
Sat 10/411:25 amEYW - CHS
2 stops9h 40mAmerican Airlines
Deal found 6/10$342
This United Airlines deal was found by Cheapflights users on 6/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/316:15 amCHS - EYW
2 stops25h 45mUnited Airlines
Sun 8/38:45 amEYW - CHS
2 stops38h 00mUnited Airlines
Deal found 6/11$590

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 June 12, 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

Mon 7/7

9:31 pm-9:22 am

1 stop11h 51m

Key West

Mon 7/14

1:47 pm-8:28 am

1 stop18h 41m

$161

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sat 6/28

9:42 am-8:03 am

2 stops22h 21m

Key West

Wed 7/2

3:33 pm-2:36 pm

1 stop23h 03m

$242

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Fri 7/4

6:41 pm-3:08 pm

2 stops20h 27m

Key West

Fri 7/11

5:26 pm-8:06 am

2 stops14h 40m

$307

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Tue 8/12

6:00 am-12:32 pm

1 stop6h 32m

Key West

Sat 8/16

3:00 pm-7:40 pm

1 stop4h 40m

$337

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Tue 7/15

10:42 am-5:32 pm

1 stop6h 50m

Key West

Sat 7/19

6:27 pm-11:01 pm

1 stop4h 34m

$417

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 7/31

6:15 am-8:00 am

2 stops25h 45m

Key West

Sun 8/3

8:45 am-10:45 pm

2 stops38h 00m

$590

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Mon 6/30

9:31 pm-9:22 am

1 stop11h 51m

$104

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Mon 6/30

1:10 pm-9:22 am

2 stops20h 12m

$167

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 7/10

3:26 pm-3:16 pm

1 stop23h 50m

$185

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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 June 9, 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, August is the cheapest month in which you can book a flight from Charleston to Key West (average of $328). Flying from Charleston to Key West in March is currently the most expensive (average of $493). 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 June 12, 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 14% on your trip compared to booking a flight at noon.

Rainfall in Key West by month

Plan your trip to Key West by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Key West ranges from 1.5 - 6.7 inches per month. September is typically the wettest month, when rainfall can reach 6.7 in. February is typically the driest time to visit Key West when rainfall is around 1.5 in.

Temperature in Key West by month

Plan your trip to Key West by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Key West, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

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 June 12, 2025.
Peruse reviews from past customers who have flown with Breeze Airways, Delta and United Airlines from Charleston to Key West to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Breeze Airways
8.1
Very good
178 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Delta
8.0
Very good
7,946 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
United Airlines
7.4
Good
8,790 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
Allegiant Air
7.3
Good
725 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!
American Airlines
7.2
Good
10,000 reviews
Breeze Airways
8.1
Very good
178 reviews

Food

6.7

Entertainment

6.6

Boarding

8.3

Overall

8.1

Comfort

8.2

Crew

8.8

Reviews

1 / 11
10.0
Excellent

Dena,Dec 2024

LAS - BDL

It was comfortable and the crew was great! A few free snacks offered would be nice!

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.

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

    Breeze Airways, at $161, was found to be the cheapest airline from Charleston to Key West.Alternate airlines to your destination round-trip include Allegiant Air and American Airlines. Breeze Airways is currently priced 69% 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, August is the cheapest month in which you can book a flight from Charleston to Key West (average of $328). Flying from Charleston to Key West in March is currently the most expensive (average of $493). 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 Fort Lauderdale flights
Charlotte to Miami flights
Charlotte to Orlando flights
Charlotte to Tampa flights
Charleston to Miami flights
Charlotte to West Palm Beach flights
Columbia to Fort Lauderdale flights
Columbia to Miami flights
Charlotte to Jacksonville flights
Charleston to Fort Lauderdale flights
Savannah to Miami flights
Charlotte to Key West flights
Charlotte to Fort Myers flights
Charlotte to Sarasota flights
Greenville to Miami flights
Myrtle Beach to Orlando flights
Charlotte to Panama City flights
Columbia to Orlando flights
Myrtle Beach to Fort Lauderdale flights
Charleston to Tampa flights
Myrtle Beach to Miami flights
Charleston to Orlando flights
Charlotte to Pensacola flights
Savannah to Fort Lauderdale flights
Greenville to Orlando flights
Charlotte to St Petersburg flights
Charlotte to Valparaiso flights
Greenville to Fort Myers flights
Columbia to Pensacola flights
Columbia to Tampa flights
Savannah to Tampa flights
Charlotte to Melbourne flights
Greenville to Fort Lauderdale flights
Greenville to West Palm Beach flights
Myrtle Beach to Key West flights
Charlotte to Daytona Beach flights
Charlotte to Orlando Sanford Intl flights
Greenville to Tampa flights
Charleston to Panama City flights
Greenville to Jacksonville flights
Greenville to Valparaiso flights
Greenville to Key West flights
Savannah to Key West flights
Augusta to Fort Lauderdale flights
Savannah to Orlando flights
Savannah to West Palm Beach flights
Greenville to Pensacola flights
Charlotte to Tallahassee flights
Charleston to West Palm Beach flights

Top 2 airlines flying from Charleston to Key West

Discover the top 2 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$336Average$555FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$378Average$543FlexibilityNo 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.