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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

Book the best Key West International fare with no extra fees

Flight deals from Charleston to Key West International

Looking for a cheap last-minute deal or the best return flight from Charleston Airport to Key West International Airport? If you want to travel next month, return fares start from R 2,616. Find the lowest prices on one-way and return tickets right here.
Key West.R 1,188 per passenger.Departing Sat, 29 Aug.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Charleston on Sat, 29 Aug, arriving in Key West International.Price includes taxes and charges.From R 1,188, select.
Key West.R 1,672 per passenger.Departing Sat, 10 Oct.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Charleston on Sat, 10 Oct, arriving in Key West International.Price includes taxes and charges.From R 1,672, select.
Key West.R 1,984 per passenger.Departing Fri, 4 Sep.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Charleston on Fri, 4 Sep, arriving in Key West International.Price includes taxes and charges.From R 1,984, select.
Key West.R 2,325 per passenger.Departing Thu, 19 Nov.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Charleston on Thu, 19 Nov, arriving in Key West International.Price includes taxes and charges.From R 2,325, select.
Key West.R 5,136 per passenger.Departing Thu, 11 Feb.One-way flight with Delta.Outbound indirect flight with Delta, departs from Charleston on Thu, 11 Feb, arriving in Key West International.Price includes taxes and charges.From R 5,136, 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 August.
Jul
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Aug
from R 1,188
Sep
from R 1,984
Oct
from R 1,672
Nov
from R 2,325
Dec
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Jan
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Feb
from R 5,136
Mar
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Apr
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May
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Jun
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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
ClosestCheapest
from R 1,188
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Charleston to Key West: Flight information

The things to know before you go.
Cheapest flight foundR 1,188
Cheapest month to flyAugust

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

The best price we found for a return flight from Charleston to Key West International is R 1,615. 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.
Currently, there are no airlines that fly direct from Charleston to Key West International. But we found flights with one or more stops from R 1,615.
As of July 2026, there are no flights flying from Charleston to Key West International.
The cheapest month to fly from Charleston to Key West International is usually September.
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 Saturday, 19 September 2026.
No airlines currently offer direct flights between Charleston Airport and Key West International Airport. Most routes have one or more stops.
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.

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.

Currently, Breeze Airways offers the cheapest flight tickets to Key West International.

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

  • Leave enough time to make your CHS to EYW flight. It's generally best to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Travelling during a peak time such as July? Public holidays and other popular seasons can result in longer lines and delays at security. Play things extra safe and get there up to four hours ahead of international flights and two hours before a domestic departure.

  • Think about adding a stopover when booking your ticket from Charleston Airport to Key West International Airport. Simply deselect 'Direct flights only' to break up your trip, or visit a new city along the way. Check out these options between CHS and EYW:

    • Atlanta Hartsfield-Jackson Airport

    • Charlotte Douglas Airport

    • Miami International Airport

Handy information about Charleston Airport (CHS)

  • 79% of flights that leave from Charleston Airport make it to their destination on time.

  • Charleston Airport is around 19 kilometres from central Charleston. If you're driving, catching a taxi or ride-sharing from the centre, it'll take 25 minutes or so to arrive, depending on the traffic.

  • Planning to catch public transport? You can expect a journey time of around 50 minutes.

  • Taking an early flight from Charleston Airport to Key West International Airport? Avoid the last-minute rush to the airport (and sneak in some extra precious sleep) by picking one of these hotels close to CHS:

Arriving at Key West International Airport (EYW)

When to fly to Key West International Airport (EYW)

  • The quietest month for a flight from Charleston Airport to Key West International Airport is September, while April is the busiest. Choose the ideal time to go to Key West based on whether you prefer a more fast-paced or easygoing experience.

  • Lock in your flight from Charleston Airport to Key West International Airport for August if you want to explore Key West during its warmest month. Expect temperatures of between 26ºC (79ºF) and 30ºC (86ºF).

  • If you want to travel in cooler conditions, look for a cheap ticket from CHS to EYW in January. Temperatures average between 18ºC (64ºF) and 23ºC (73ºF) then.

Explore more of the United States

  • Miami is just one of the many cities in the United States waiting to be discovered after you've experienced Key West. Around 209 kilometres away to the north-east, popular attractions include Beach, Ocean Drive and Port of Miami.

  • Around 386 kilometres north of Key West, Tampa is another favourite stop in the United States. Experience the best of this destination with a visit to Busch Gardens Tampa, The Florida Aquarium and ZooTampa at Lowry Park.

Plan the rest of your trip from Charleston to Key West

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.