Cheap flights from Charleston to Key West from $145
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Charleston to Key West departing on 4/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from Charleston to Key West
Cheap round-trip flights
Cheap one-way flights
Cheap last minute flights
American Airlines flights from Charleston to Key West
Our best American Airlines deals on Charleston to Key West flight tickets
Delta flights from Charleston to Key West
Our best Delta deals on Charleston to Key West flight tickets
See travel insights to Key West from
How to get the cheapest flight ticket from Charleston to Key West
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Key West?
In general, August is the cheapest month to fly from Charleston to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $443. If you are unable to visit Key West during the month of August, then departing from Charleston during the month September is also very affordable. Most momondo users find prices during this month for around $467.
What is the cheapest day to depart on your flight to Key West?
On average, the least expensive day to fly to Key West from Charleston is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $496. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Charleston to Key West for around $646.
What is the cheapest time of day to depart on your flight to Key West?
According to our data, the cheapest time of day to fly to Key West is in the afternoon. momondo users have found flights departing from Charleston to Key West in the afternoon for as low as $534. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to Key West are more costly at noon, with an average ticket price of $617. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Key West?
You are more likely to see cheaper flights to Key West from Charleston when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $555 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Charleston for as low as $476 on momondo.
When to book flights from Charleston to Key West
Cheap Charleston to Key West (CHS to EYW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Charleston to Key West
How far is Charleston to Key West by plane?
There are 578.8 mi between Charleston and Key West. 3h 24m is a normal flight duration for this route.
When did momondo last update prices for flights from Charleston Airport to Key West Airport?
Prices for flights from Charleston Airport to Key West Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Charleston Airport to Key West Airport?
There are 2 operators available for flights from Charleston Airport to Key West Airport as of March 2025.
How old do you have to be to fly from Charleston Airport to Key West Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Charleston Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The necessary travel and health documents for your Key West Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Charleston to Key West?
momondo data reveals that the most frequently booked airline on the route from Charleston to Key West is American Airlines, representing 72% of all bookings. The subsequent popular airline is Delta at 28%.
Best airlines flying from Charleston to Key West
Compare and see reviews for airlines that fly from Charleston to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $394 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $408 | Free Cancellation | Rating 8.0 7,899 reviews |
Traveling to a place near Key West?
Book flights to Key West if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Charleston to Key West?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Charleston to Key West. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Charleston to Key West with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Key West from Charleston with this policy.
How can momondo help me find flights from Charleston to Key West?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Key West from Charleston.
I’m not ready to book a flight from Charleston to Key West right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Charleston to Key West flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.