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

American Airlines, at $337, was found to be the cheapest airline from Charleston to Key West.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 39% below the average price you’ll pay for this route.

What is the cheapest day to fly from Charleston to Key West?

Travelers seeking maximum savings on their Charleston to Key West flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What is the cheapest day to fly round-trip from Charleston to Key West?

Users have found that flying from Charleston to Key West on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 75% by booking at least 51 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Charleston to Key West within the next two weeks, with the cheapest ticket starting at $412.

What is the cheapest month to fly from Charleston to Key West?

August is one of the best times of the year to fly to Key West from Charleston. Prices for August average $557 per person but you can even find prices for as low as $380. The most expensive prices can be found in the month of March. Opting for a August flight can save you 17% on your journey compared to booking in March

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.

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.

$118+ Flights from Charleston to Key West

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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”

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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.

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The best prices from Charleston to Key West are usually found in August or September, booked 50 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Charleston to Key West

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$337 (American Airlines)
One-way from	$118 (Mytrip)
Popular in	March
Cheapest in	August
Average price	$653

Provider with most accurate pricing for Charleston-Key West flight deals.

Search Deals

Provider most trusted by Cheapflights users for Charleston-Key West flights.

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From Charleston to Key West

Search Deals

One-way flight from Charleston to Key West

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in March 2025

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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 March 8, 2025.

Wed 4/166:44 amCHS - EYW

1 stop5h 22mAmerican Airlines

Wed 4/237:29 pmEYW - CHS

1 stop4h 12mAmerican Airlines

Deal found 3/6

$337

Wed 4/162:46 pmCHS - EYW

1 stop5h 44mDelta

Wed 4/236:13 pmEYW - CHS

1 stop5h 43mDelta

Deal found 3/7

$407

Mon 3/1710:48 amCHS - EYW

2 stops26h 56mMultiple Airlines

Thu 3/208:53 amEYW - CHS

3 stops24h 40mMultiple Airlines

Deal found 3/7

$451

Sat 9/277:40 pmCHS - EYW

2 stops17h 06mUnited Airlines

Sat 10/410:00 amEYW - CHS

2 stops23h 55mUnited Airlines

Deal found 3/6

$668

Best flights from Charleston to Key West
Discover carefully curated flight deals from Charleston to Key West that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 8, 2025.

Wed 4/166:44 amCHS - EYW

1 stop5h 22mAmerican Airlines

Wed 4/237:29 pmEYW - CHS

1 stop4h 12mAmerican Airlines

Deal found 3/6

$337

Wed 4/162:46 pmCHS - EYW

1 stop5h 44mDelta

Wed 4/236:13 pmEYW - CHS

1 stop5h 43mDelta

Deal found 3/7

$407

Mon 3/1710:48 amCHS - EYW

2 stops26h 56mMultiple Airlines

Thu 3/208:53 amEYW - CHS

3 stops24h 40mMultiple Airlines

Deal found 3/7

$451

Sat 4/127:43 pmCHS - EYW

2 stops19h 21mUnited Airlines

Sat 4/198:45 amEYW - CHS

2 stops25h 46mUnited Airlines

Deal found 3/7

$842

Last-minute flights from Charleston to Key West
Discover last-minute flight deals from Charleston to Key West. Data last updated March 8, 2025 and is based on user searches.

Mon 3/1710:48 amCHS - EYW

2 stops26h 56mMultiple Airlines

Thu 3/208:53 amEYW - CHS

3 stops24h 40mMultiple Airlines

Deal found 3/7

$451

Mon 3/176:45 amCHS - EYW

1 stop7h 05mDelta

Thu 3/202:45 pmEYW - CHS

1 stop4h 14mDelta

Deal found 3/7

$777

Mon 3/176:41 amCHS - EYW

2 stops6h 23mAmerican Airlines

Thu 3/207:29 pmEYW - CHS

1 stop4h 17mAmerican Airlines

Deal found 3/7

$782

Sat 4/127:43 pmCHS - EYW

2 stops19h 21mUnited Airlines

Sat 4/198:45 amEYW - CHS

2 stops25h 46mUnited Airlines

Deal found 3/7

$842

Wed 4/166:44 amCHS - EYW

1 stop5h 22mAmerican Airlines

Wed 4/237:29 pmEYW - CHS

1 stop4h 12mAmerican Airlines

Deal found 3/6

$337

Wed 4/162:46 pmCHS - EYW

1 stop5h 44mDelta

Wed 4/236:13 pmEYW - CHS

1 stop5h 43mDelta

Deal found 3/7

$407

One-way flights from Charleston to Key West
Search for one-way flight options from Charleston to Key West. Find affordable one-way fares based on user searches. Data last updated March 8, 2025.

Thu 3/272:15 pmCHS - EYW

2 stops26h 03mMultiple Airlines

Deal found 3/7

$118

Wed 4/162:46 pmCHS - EYW

1 stop5h 44mDelta

Deal found 3/6

$169

Wed 4/169:06 amCHS - EYW

2 stops8h 23mAmerican Airlines

Deal found 3/6

$174

Find flights from Charleston to Key West within your budget

Fly from

Fly to

Route

Depart

Return

Price

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 4/16

6:44 am-12:06 pm

1 stop5h 22m

Key West

Wed 4/23

7:29 pm-11:41 pm

1 stop4h 12m

$337

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 4/16

2:46 pm-8:30 pm

1 stop5h 44m

Key West

Wed 4/23

6:13 pm-11:56 pm

1 stop5h 43m

$407

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Mon 3/17

10:48 am-1:44 pm

2 stops26h 56m

Key West

Thu 3/20

8:53 am-9:33 am

3 stops24h 40m

$451

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Sat 4/12

7:43 pm-3:04 pm

2 stops19h 21m

Key West

Sat 4/19

8:45 am-10:31 am

2 stops25h 46m

$842

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Thu 3/27

2:15 pm-4:18 pm

2 stops26h 03m

$118

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 4/16

2:46 pm-8:30 pm

1 stop5h 44m

$169

CharlestonKey West

CHS - EYW

CHSEYW

Charleston

Wed 4/16

9:06 am-5:29 pm

2 stops8h 23m

$174

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/7

Compare providers for flights from Charleston to Key West

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.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust 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.

Travel insights for flights from Charleston to Key West

Get recent, data-driven insights about flights from Charleston to Key West including ideal travel times, pricing trends, and more.

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

The best time to book flights from Charleston to Key West is 50 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 $503). 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?

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

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

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

Peruse reviews from past customers who have flown with Delta, United Airlines and American 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.

Delta

8.0

Very good

8,024 reviews

Reviews

1 / 20

10.0

Excellent

Lucy,Nov 2023

CAE - ATL

On time flights; courteous staff; efficient boarding system! Thank you!

Delta

8.0

Very good

8,024 reviews

Delta

8.0

Very good

8,024 reviews

Reviews

1 / 20

10.0

Excellent

Lucy,Nov 2023

CAE - ATL

On time flights; courteous staff; efficient boarding system! Thank you!

United Airlines

7.4

Good

8,649 reviews

Delta

8.0

Very good

8,024 reviews

Reviews

1 / 20

10.0

Excellent

Lucy,Nov 2023

CAE - ATL

On time flights; courteous staff; efficient boarding system! Thank you!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

8,024 reviews

Reviews

1 / 20

10.0

Excellent

Lucy,Nov 2023

CAE - ATL

On time flights; courteous staff; efficient boarding system! Thank you!

Related info for your journey

What are the cheapest airlines flying from Charleston to Key West round-trip?
American Airlines, at $337, was found to be the cheapest airline from Charleston to Key West.Alternate airlines to your destination round-trip include Delta and United Airlines. American Airlines is currently priced 39% 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 $503). 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

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Other flights to Key West

Top 2 airlines flying from Charleston to Key West

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest$408	Average$602	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$408	Average$558	FlexibilityNo cancel fee	On-time71%

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$118+ 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Charleston to Key West with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

The best prices from Charleston to Key West are usually found in August or September, booked 50 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap flight deals from Charleston to Key West

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Charleston to Key West

Cheapest flights from Charleston to Key WestExplore 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 8, 2025.

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 8, 2025.

Find flights from Charleston to Key West within your budget

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.

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.

Travel insights for flights from Charleston to Key West

Get recent, data-driven insights about flights from Charleston to Key West including ideal travel times, pricing trends, and more.

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 February 28, 2025.

What is the cheapest month to book a flight from Charleston to Key West?

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 March 8, 2025.

Rainfall in Key West by month

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

Temperature in Key West by month

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

Reviews of airlines servicing Key West

Peruse reviews from past customers who have flown with Delta, United Airlines and American 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.

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?

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

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

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

What is the cheapest month to book a flight from Charleston to Key West?

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.

Top 2 airlines flying from Charleston to Key West

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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 8, 2025.