$528 Cheap Flights from Las Vegas (LAS) to Castries (SLU)

View $528 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)

Cheap Flights from Las Vegas to Castries (LAS-SLU)

Prices were available within the past 7 days and start at $528 for one-way flights and $1,356 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Dec 7 - Fri, Dec 12
LAS
Las Vegas
SLU
Castries
$1,356 Roundtrip, found 4 days ago
$1,356
Roundtrip
found 4 days ago
Select United flight, departing Sun, Dec 7 from Las Vegas to Castries, returning Fri, Dec 12, priced at $1,356 found 4 days ago

Alternative airports near Castries

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Hewanorra Intl. UVF. Cheapest option available. Average driving time to city center is 53 minutes. Flights from $787
UVF
Hewanorra Intl.
Cheapest
Average driving time to city center53 min
Flights from $787
Flights from Las Vegas (LAS) to Castries (SLU)
Origin airport
Harry Reid Intl.
Destination airport
George F. L. Charles
Roundtrip price
$1,356
Distance
3661 mi

Las Vegas to Castries Flights

The cheapest times to fly from Las Vegas to Castries

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Vegas to Castries are during the month of December. You can find some of the cheapest flights from Las Vegas to Castries with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Las Vegas to Castries

Sunday is one of the best days to book for cheap flights from Las Vegas to Castries: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Las Vegas to Castries

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Castries in 2025. You can also book with separate airlines for your outbound and return journeys, from $528 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Vegas to Castries flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Vegas to Castries airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU) cost?
Secure a cheap one-way flight from $528 or cheap return flight from $1,356 from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)?
December is the most affordable month to fly from LAS to SLU. Planning your trip for the off-season is often the key to finding better deals on flights.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Customize the search to your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest LAS to SLU flight.
How many flights per day from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)?
Nonstop flights from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from LAS to SLU?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)?
To arrive at George F. L. Charles Airport (SLU) without delays, opt for a flight that takes off from Harry Reid Intl. Airport (LAS) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU) last-minute?
Last-minute bookings from LAS to SLU are typically more expensive. To secure the lowest prices, start looking for flights as early as possible. That being said, if you're flexible with your travel plans, you may score a cheap fare just before your departure.
Is it cheaper to book a LAS to SLU flight and hotel package?
Booking a LAS to SLU flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of hotels and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to George F. L. Charles Airport (SLU)?
Typically, you're able to reschedule or cancel your LAS to SLU flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.