Cheap Flights from Charleston to Key West International

Compare Charleston to Key West International flight deals

Find the cheapest month or even day of the year to fly to Key West International

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Flight deals from Charleston to Key West International

Looking for a cheap last-minute deal or the best return flight from Charleston to Key West International? Find the lowest prices on one-way and return tickets right here.

Key West.$457 per passenger.Departing Mon, 23 Mar, returning Thu, 26 Mar.Return flight with Spirit Airlines.Outbound indirect flight with Spirit Airlines, departs from Charleston on Mon, 23 Mar, arriving in Key West International.Inbound indirect flight with Spirit Airlines, departs from Key West International on Thu, 26 Mar, arriving in Charleston.Price includes taxes and charges.From $457, select.

Key West.$612 per passenger.Departing Tue, 6 Oct, returning Wed, 14 Oct.Return flight with Delta.Outbound indirect flight with Delta, departs from Charleston on Tue, 6 Oct, arriving in Key West International.Inbound indirect flight with Delta, departs from Key West International on Wed, 14 Oct, arriving in Charleston.Price includes taxes and charges.From $612, select.

Key West.$689 per passenger.Departing Fri, 1 May, returning Wed, 6 May.Return flight with Delta.Outbound indirect flight with Delta, departs from Charleston on Fri, 1 May, arriving in Key West International.Inbound indirect flight with Delta, departs from Key West International on Wed, 6 May, arriving in Charleston.Price includes taxes and charges.From $689, select.

Key West.$740 per passenger.Departing Sat, 21 Nov, returning Tue, 24 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Charleston on Sat, 21 Nov, arriving in Key West International.Inbound indirect flight with Delta, departs from Key West International on Tue, 24 Nov, arriving in Charleston.Price includes taxes and charges.From $740, select.

Key West.$747 per passenger.Departing Sat, 25 Apr, returning Wed, 29 Apr.Return flight with Delta.Outbound indirect flight with Delta, departs from Charleston on Sat, 25 Apr, arriving in Key West International.Inbound indirect flight with Delta, departs from Key West International on Wed, 29 Apr, arriving in Charleston.Price includes taxes and charges.From $747, select.

Find the cheapest month to fly from Charleston to Key West International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Charleston to Key West International flights are currently cheapest in March.

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Charleston to Key West International: Alternative routes

Compare routes from Charleston to Key West below. You may find an airport to fly into that's cheaper, faster, or easier than Key West International.

Key West International

5km from central Key West

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from $457

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Charleston to Key West: Flight information

The things to know before you go.

Cheapest flight found	$457
Cheapest month to fly	March

Finding cheap flights from Charleston to Key West International: Frequently asked questions

How much are return flights from Charleston to Key West International?

The best price we found for a return flight from Charleston to Key West International is $457. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Charleston to Key West International?

Currently, there are no airlines that fly direct from Charleston to Key West International. But we found flights with one or more stops from $457.

How many flights are there a week from Charleston to Key West International?

As of March 2026, there are no flights flying from Charleston to Key West International.

When is the cheapest time to fly from Charleston to Key West International?

The cheapest month to fly from Charleston to Key West International is usually March.

Which upcoming date is cheapest to fly from Charleston Airport to Key West International Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Charleston Airport to Key West International Airport on Monday, 23 March 2026.

Can I get a direct flight from Charleston Airport to Key West International Airport?

No airlines currently offer direct flights between Charleston Airport and Key West International Airport. Most routes have one or more stops.

How can I find the best flight deal to Key West International?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Key West International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Key West?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Key West is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Charleston Airport to Key West International with?

Currently, Spirit Airlines offers the cheapest flight tickets to Key West International.

Flying from Charleston International Airport (CHS) to Key West International Airport (EYW): what you need to know

Give yourself plenty of time to catch your CHS to EYW flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.
During popular months such as July, it's a good idea to get to the airport well in advance. Arrive two hours before a domestic departure and four hours ahead for an international flight whenever you're travelling during a peak period in general.
We make it easy to book a flight with a stopover. To see all your options for tickets from Charleston International Airport to Key West International Airport, deselect 'Direct flights only.' Then, pick a flight offering a stop long enough to visit your chosen city. Top stopovers between CHS and EYW include:
- Orlando International Airport
- Hartsfield-Jackson Atlanta International Airport
- Miami International Airport

How to find the cheapest flights from Charleston International Airport (CHS) to Key West International Airport (EYW)

The lowest price we've seen for a one-way Charleston International Airport to Key West International Airport flight is $330. A round-trip fare right now is $457. Depending on the availability when you book, these fares could change.
Don't leave everything to the last moment. You're more likely to find cheap tickets from CHS to EYW if you book ahead. Airlines often have some terrific early bird discounts.
The 'Whole month' search function shows you the cheapest flights from Charleston International Airport to Key West International Airport across the entire month. It's a good way to find a bargain if your dates are flexible.
Cut down on the time spent looking for cheap flights from CHS to EYW by creating a Price Alert. You'll receive an email or push notification on the app when fares go down.
Secure the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Charleston International Airport to Key West International Airport, use the 'Sort by' tool. You can also filter results by departure and arrival times, airline, and number of stops.

Handy information about Charleston International Airport (CHS)

Charleston International Airport has an excellent on-time record, making delays less likely. Departures from CHS land at their destination as scheduled 81.5% of the time.
To reach Charleston International Airport from central Charleston, it'll take around 30 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 21 kilometres from the airport to the city centre.
Catching public transport? You can expect a journey time of around 3 hours 35 minutes.
Need a convenient hotel near CHS? If you're catching an early flight from Charleston International Airport to Key West International Airport, these accommodation options will have you moments from your check-in counter:

Arriving at Key West International Airport (EYW)

The last thing you need is a lengthy journey to your hotel if you're landing late on a Charleston International Airport to Key West International Airport flight. Check in to one of these accommodation options near EYW instead:
Travel at your own pace with a Key West International Airport rental car. Pick up a set of wheels from Dollar, Alamo or Budget and experience more of Key West and beyond.
Reserving your ride from Key West International Airport around two weeks in advance gives you the best shot at securing a great deal.

Getting from Key West International Airport (EYW) to central Key West

The street address for EYW is 3491 South Roosevelt Boulevard.
Key West International Airport is roughly 3 kilometres from central Key West. The drive time takes about 5 minutes.
It typically takes 40 minutes if you're using public transport.

When to fly to Key West International Airport (EYW)

The quietest month for a flight from Charleston International Airport to Key West International Airport is February, while January is the most popular. Pick the ideal time to visit Key West based on whether you prefer a bustling atmosphere or a more laid-back vibe.
The warmest month in Key West is August, with temperatures ranging between 26ºC and 30ºC. Lock in your flights from Charleston International Airport to Key West International Airport in this month if you like this kind of weather.
January has average temperatures of between 18ºC and 23ºC. Search for cheap tickets from CHS to EYW around that time if you'd rather travel in cooler conditions.

Explore more of United States

You've visited Key West, now it's time to discover other parts of United States. Travel around 209 kilometres north-east to Miami to tick off its top attractions. From Wynwood Walls to Vizcaya Museum and Gardens and American Airlines Arena, there's plenty to keep you busy.
Tampa is another essential stop in United States and is around 386 kilometres north of Key West. No journey is complete without a visit to Ybor City Tattoo Company, Tampa Riverwalk and The Florida Aquarium.