$360 Find Cheap Flights from Las Vegas to Saint Lucia - Compare and Save

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1 adult, Economy, 0 bags

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Price, demand and travel trends for Las Vegas 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 Las Vegas to Saint Lucia right now?

The cheapest fare from Las Vegas to Saint Lucia in the last week was $678 round-trip, to Castries Hewanorra (UVF).

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

All flights from Las Vegas to Saint Lucia arrive at Castries Hewanorra (UVF). On average, round-trip fares are around $795.

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

Monday tends to be the cheapest day to fly from Las Vegas to Saint Lucia, while Wednesday is the most expensive. Fares run about 62% higher that day, based on the past 12 months of KAYAK data.

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

Data from the past 12 months shows it's cheapest to fly to Saint Lucia during the morning with average prices of $592. The evening is the most expensive time to fly, with average prices of $1,084.

Key details for Las Vegas to Saint Lucia flights

Low season

August

Cheapest flight

$360
Beat the crowds with an average 78% drop in travelers.
The most popular month to fly with an average 33% increase in travelers.
One-way flight from Las Vegas to Castries

Your Las Vegas 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 Las Vegas to Saint Lucia?

    Fares from Las Vegas to Saint Lucia are around their usual level right now. A round-trip under $635 is considered a good deal, so it's worth keeping an eye out, or setting a Price Alert to catch price changes.

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

    Over the past 12 months, round-trip fares from Las Vegas to Saint Lucia have ranged from $635 to $996.

  • What are the main airports serving Saint Lucia?

    Flights to Saint Lucia use two main airports, Castries George F. L. Charle (SLU) and Castries Hewanorra (UVF).

  • What airlines fly nonstop from Las Vegas to Saint Lucia?

    Based on the flight schedule for the next 3 months, no airline regularly operates nonstop flights from Las Vegas to Saint Lucia. One-stop options include:

    • American Airlines
    • Delta
    • JetBlue

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

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

Your guide to booking Las Vegas 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 September when flights are typically cheapest and avoid May when prices are at their highest.
  • Flying on Monday is usually the cheapest. Flights on Wednesday cost about 62% 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 airline flying from Las Vegas to Saint Lucia

 
Need help choosing which airline to fly with from Las Vegas 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.
7.0
American AirlinesOverall score based on 12209 reviews
6.8Entertainment
7.9Crew
7.4Boarding
6.4Food
7.1Comfort
Airline reviews

The crew in the Vegas airport clearly was having a bad day … they moved on and the crew that checked us in for boarding was great, as was the flight crew. I did get the wheel of my carry on stuck in the overhead bin. Amazing team effort to include the flight attendants, the pilot, and another pilot who was on the flight as a passenger. Finally got it unstuck ✅

10.0 ExcellentTerry, Oct 2026
Read more American Airlines reviews

The crew in the Vegas airport clearly was having a bad day … they moved on and the crew that checked us in for boarding was great, as was the flight crew. I did get the wheel of my carry on stuck in the overhead bin. Amazing team effort to include the flight attendants, the pilot, and another pilot who was on the flight as a passenger. Finally got it unstuck ✅

My seat was defective. The suppor was broken under the cushion so I road on metal for 4 hours

I always looks forward to the Biscoff cookies and they weren’t offered….

Inflight wifi was awful. Couldn't connect for the first hour until they manually reset, and after that the connection kept dropping every five minutes. Their entertainment option streamed fine but normal browsing was unusable.

weather delay of almost 2 hours then we landed and our gate wasn't available so we waited another 30 min

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

It's very confusing because Kayak has it as American Airlines, but it was Hawaiian Airlines, but operated by Alaska Airlines. I had to go to the airport for my boarding pass because American said I didn't have any trips.

The boarding was pretty easy. However, the first class seats are not lay flat as other airlines (like JetBlue) has and therefore sleeping was a challenge.

Between Las Vegas and Dallas was okay But, once in the Dallas airport, notice, I have disability and ask for a wheelchair, they leave in a middle of nowhere, the personal in charge try to push me on a cart where I couldn't sit because was to high. Then they don't care about me, they bulling, till I start to yelling and crying, ask to everyone around, who can help me. The man in charge make a despective movements and said you are to loosing the fly. The last name in his batch started with an H, I did not have the full name. A nightmare. After all, a woman in charge was walking very slowly and asking me for a tip cause she was helping me to reach the fly. For years, AA has been the preferred airline. The personal in charge of the disabled people are discriminate me. Thank you Kayak.

Customer service in first class does not exist on American Airlines

More options for your flight from Las Vegas to Saint Lucia

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