$649 Find Cheap Flights from Louisville to Saint Lucia - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Price, demand and travel trends for Louisville to Saint Lucia flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What are the cheapest fares from Louisville to Saint Lucia right now?

The cheapest fare from Louisville to Saint Lucia in the last week was $649 round-trip, to Castries Hewanorra (UVF).

What’s the cheapest month to fly from Louisville to Saint Lucia?

October is the cheapest time of year to fly, with average fares of $722. Prices are highest in April, when average flight costs increase to around $1,392.

Which airport in Saint Lucia is the cheapest to fly to from Louisville?

All flights from Louisville to Saint Lucia arrive at Castries Hewanorra (UVF). On average, round-trip fares are around $874.

What’s the cheapest day to fly from Louisville to Saint Lucia?

Wednesday tends to be the cheapest day to fly from Louisville to Saint Lucia, while Friday is the most expensive. Fares run about 39% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Louisville to Saint Lucia?

Data from the past 12 months shows it's cheapest to fly to Saint Lucia during the evening with average prices of $708. The morning is the most expensive time to fly, with average prices of $874.

Key details for Louisville to Saint Lucia flights

Low season

June

Cheapest flight

$649
Beat the crowds with an average 44% drop in travelers.
The most popular month to fly with an average 200% increase in travelers.
Round-trip flight from Louisville to Castries

Your Louisville to Saint Lucia flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Louisville to Saint Lucia?

    Yes. Fares from Louisville to Saint Lucia are low right now. As a rule of thumb, a round-trip under $775 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Louisville to Saint Lucia?

    Over the past 12 months, round-trip fares from Louisville to Saint Lucia have ranged from $775 to $994.

  • What are the main airports serving Saint Lucia?

    Flights to Saint Lucia all arrive at Castries Hewanorra (UVF).

  • What airlines fly nonstop from Louisville to Saint Lucia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Louisville to Saint Lucia. One-stop options include American Airlines and Delta.

  • Which cabin classes are available on flights from Louisville to Saint Lucia?

    On flights from Louisville to Saint Lucia you can book Economy Class or First Class.

Your guide to booking Louisville to Saint Lucia flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your travel dates are flexible, book your trip for October when flights are typically cheapest and avoid April when prices are at their highest.
  • Flying on Wednesday is usually the cheapest. Flights on Friday cost about 39% more on average, so being flexible with your travel dates could help you save.
  • Start your trip in Castries, which is the most popular destination in Saint Lucia. From there, it's easy to continue on to other popular destinations such as Soufrière, Gros Islet and Vieux Fort.

Reviews of the top airlines flying from Louisville to Saint Lucia

 
Need help choosing which airline to fly with from Louisville to Saint Lucia? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
DeltaOverall score based on 8646 reviews
7.2Food
8.1Boarding
8.5Crew
7.8Comfort
7.8Entertainment
Airline reviews

After boarding the plane had to wait an hour at the for the copilot to show up before we could depart

4.0 OkayAnonymous, Oct 2026
Read more Delta reviews

After boarding the plane had to wait an hour at the for the copilot to show up before we could depart

No beverage/snack service without any explanation or reason. Late boarding and delayed flight.

more room in seats, larger snacks, more comms with delays

There was overbooking that delayed boarding. Then an airport emergency lockdown that caused further delays in boarding. However the time was made up during flight and there was a minimal delay in landing. Everything else was excellent.

Very crowded and the economy seats were the smallest and with the least legroom I have ever experienced. Cabin staff were excellent although the food service was chaotic as they were being each person their food individually instead of from the wagon.

No snacks not been water was offered I fly weekly and have to select Economy or extra comfort per business rules but will choose American at least they offer mid seat class passengers water. on short flights. The WIFI was awful on the plane as well. The thing I can not figure out is why you treat business class people this way we spend more money that your one trip first class passengers cumulative than others maybe look at the company name of the people flying and treat us better as there are thousands of us flying weekly and choose what airline we want to select.

The boarding agent guy in Lexington on 7/23 that boarded the flights to Atlanta is very rude for working in customer service. I know there were delays but he was dismissive rude and arrogant. Most native Kentucky residents are nice and very cordial he needs to eat a big ole piece of humble pie. I watched him be rude to several people and as much as he could of filled up a delayed flight to save you money and he was so rude to people it was ridiculous. Next no water or snacks on short flights is awful 1st you delay a flight then do not even offer water on the flight.. No thanks I like delta better but I travel ever week and to be treated like this might as well fly American at least they offer water and have better rewards.

The staff was fine. The plane was extremely tight, and I paid for the wifi and it did not work at all. I was actually going to ask for a refund.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

The crew was very polite as I have a few handicaps and everything was made pleasant. Check-in was easy as I was brought on board by the wheelchair assistant. One flight attendant did make sure my personal item was carefully stored under the seat in front of me. I was made to feel welcome as a customer as I made my first trip with a few disabilities. Entertainment and wifi worked quite well. The only food service were snacks and drinks. Those were okay. Overall it was a very smooth flight and encouraged me to use Delta again.

After lack of help in Philadelpha made us late to board our flight to akansas City, our flight to Kansas City was very good. And the flight attendants were also very good. The only thing that sucked was problems with assistance in Philadelphia caused our bags not to arrive.

They delayed my flight 6 hours and gave me $12 for food that I couldn't use it anywhere.

Better perks for corporate employees whom travel often and spend a lot of money with the airlines. Snacks were terrible chips crackers are ideas. Flight and crew were great comfort was fine entertainment not so great so so called status members means nothing

Flight had mechanical issues and it was delayed 30 mins - some of us boarded and then had to deplane.

Delayed flight. Missed connection, AA put us on a later connecting flight. The connection flight was delayed 4 times and we had to deplane. Didnt get home until 3am, when I was supposed to be home at 8:30p. Zero compensation offered from American. I would not fly them again.

Better snacks but flight and crew were amazing on this flight

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

Cabin was roomy enough to easily slide my carry on under the seat in front of me!

They needed to de-ice the plane. Apparently airlines have a problem keeping their de-icing vehicles in good repair. After we backed away from the gate we sat and didn't move for nearly an hour. Nearly an HOUR with minimal communication from the flight crew. Eventually the sun took care of what American Airlines could not and melted the minimal ice. We finally took of a hour late which, in turn, jacked up our connection in Chicago.

More options for your flight from Louisville to Saint Lucia

Complete your trip to Saint Lucia with a hotel stay or car rental