Cheap flights from Louisville to Key West from $142
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Key West departing on 11/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Louisville 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 Louisville to Key West. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $273. If you are unable to visit Key West during the month of August, then departing from Louisville during the month September is also very affordable. Most momondo users find prices during this month for around $321.
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 Louisville is on a Saturday. momondo users have found tickets for Saturday departures for as low as $373. 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 Louisville to Key West for around $482.
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 at noon. momondo users have found flights departing from Louisville to Key West at noon for as low as $335. 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 in the afternoon, with an average ticket price of $399. Departure times in the afternoon 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 Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to Key West for around $400 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Key West from Louisville for as low as $331 on momondo.
What is the cheapest airline that flies from Louisville Intl to Key West?
American Airlines, Delta, and United Airlines are the most popular carriers operating from Louisville Intl to Key West
What airlines fly to Key West?
American Airlines, Allegiant Air and Delta are the top three most popular airlines that fly to Key West from Louisville according to our data. American Airlines is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Key West. Keep in mind that there are 4 different airlines that fly to Key West on a routine basis, so you have a few additional options to choose from.
When to book flights from Louisville to Key West
Cheap Louisville to Key West (SDF to EYW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Louisville to Key West
How far is Louisville Intl to Key West by plane?
Louisville Intl and Key West are 973.5 mi apart from one another. In terms of flight time, this usually takes a little over 3h 50m.
When did momondo last update prices for flights from Louisville Intl Airport to Key West Airport?
Prices for flights from Louisville Intl Airport to Key West Airport were last updated today.
How many operators does momondo search for flights from Louisville Intl Airport to Key West Airport?
As of June 2025, there are 3 operators available to choose from for flights from Louisville Intl Airport to Key West Airport.
How old do you have to be to fly from Louisville Intl Airport to Key West Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Key West Airport.
What documentation or ID do you need to fly to Key West Airport?
The travel and health documents required for your trip to Key West Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Key West Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Louisville to Key West?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Key West is American Airlines (66% of total bookings). The next most popular airlines are Delta (32%) and United Airlines (3%).
Best airlines flying from Louisville to Key West
Compare and see reviews for airlines that fly from Louisville to Key West with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $238 | Free Cancellation | Rating 8.0 7,969 reviews | |||
| PriceFrom $258 | Free Cancellation | Rating 7.4 8,852 reviews | |||
| PriceFrom $258 | Free Cancellation | Rating 7.2 10,000 reviews |
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Why should I use momondo to find a flight deal from Louisville to Key West?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Louisville to Key West. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Louisville to Key West with flexible booking policies on momondo?
All flight searches from Louisville to Key West on momondo can be filtered to show those which offer flexible booking policies.
How can momondo help me find flights from Louisville 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 Louisville.
I’m not ready to book a flight from Louisville to Key West right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Key West, momondo offers a useful price alert feature which will track prices for flights to Key West from Louisville and alert you when they change.