C$957 Cheap Flights from Raleigh / Durham (RDU) to Castries (SLUA)

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Flight deals from Raleigh / Durham to Castries

Looking for a cheap last-minute deal or the best return flight from Raleigh / Durham Airport to Castries? If you want to travel next month, return fares start from C$1,058. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Raleigh / Durham to Castries

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Raleigh / Durham to Castries flights are currently cheapest in April.

Alternative Raleigh / Durham to Castries routes

Looking for the cheapest, fastest or easiest route from Raleigh / Durham to Castries? You could fly into the following airports instead.

Durham to Castries: Flight information

The things to know before you go.
Cheapest flight foundC$957
Cheapest month to flyApril

Finding cheap flights from Raleigh / Durham to Castries: Frequently asked questions

There are 2 airports in Castries: St Lucia Vigie and St Lucia Hewanorra.
The best price we found for a return flight from Raleigh / Durham to Castries is C$806. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Raleigh / Durham to Castries. But we found flights with one or more stops from C$806.
As of April 2026, there are no flights flying from Raleigh / Durham to Castries.
The cheapest month to fly from Raleigh / Durham to Castries is usually June.
If you're flying from Raleigh / Durham Airport, the cheapest airport near Castries is St Lucia Hewanorra – which is 30.5 km away from the centre of Castries. We've found flights into this airport from C$806.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Raleigh / Durham Airport to Castries on Thursday, June 25, 2026.
No airlines currently offer direct flights between Raleigh / Durham Airport and Castries. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Castries but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Castries is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 27°C. September is typically the warmest month in Castries, when it usually averages around 28°C. You can expect the least rain in February. The coldest month is February, with temperatures averaging 25°C. The rainiest month is October.
Currently, Delta offers the cheapest flight tickets to Castries.

Flying from Raleigh-Durham International Airport (RDU) to Castries: what you need to know

  • Castries's timezone is UTC-4, which is the same as Durham (the location of Raleigh-Durham International Airport).

  • Give yourself plenty of time to catch your flight from RDU to Castries. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • Popular months like July or high seasons such as Christmas and New Year will mean bigger queues at check-in and security. If you're travelling then, play it safe and head to the terminal even earlier. Arriving two hours before a domestic flight and up four hours ahead of an international flight is wise.

  • Stopovers are the perfect opportunity to break up your journey — and maybe even visit a new city. When browsing flights from RDU to Castries, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some popular options to consider:

    • Newark Liberty International Airport (EWR)

    • Miami International Airport (MIA)

    • Charlotte Douglas International Airport (CLT)

  • You don't need a visa for Saint Lucia if you hold a passport from United States and are travelling for tourism purposes. Visa and travel documentation requirements are subject to changes or updates. So before booking your flight tickets from Raleigh-Durham International Airport to Castries, check with your airline and your destination country's local embassy or consulate for the most up-to-date information.

  • Located around 23 kilometres from the centre of Durham, RDU can be reached in approximately 18 minutes by car, depending on traffic. The journey by public transport will take roughly 1 hour and 10 minutes.

  • After a stress-free start to your travels? Stay near RDU. Whether you're taking an early flight from Raleigh-Durham International Airport to Castries or want to avoid feeling rushed, these hotels are perfect:

How to find the cheapest flights from Raleigh-Durham International Airport (RDU) to Castries

  • C$957 is the lowest price we've seen for a one-way ticket from Raleigh-Durham International Airport to Castries. For a return flight on this route, the best price is C$806. Depending on the availability and when you book, these fares could change.

  • To pick up cheap tickets from RDU to Castries, book as early as you can. Airlines tend to offer the most competitive fares when flights are first released.

  • Getting cheap tickets from Raleigh-Durham International Airport to Castries is easy if you can be flexible with your trip dates. Use the 'Whole month' search tool to show the best prices throughout the month and snap up a great deal.

  • Log into your online account or use the app to create a Price Alert. We'll let you know right away if there's a better deal on this route. It doesn't take long, and it'll save you from looking for cheap tickets from RDU to Castries every day.

  • Make the most of the filters to find your ideal trip. To see the 'Cheapest,' 'Fastest' or 'Best' flights from Raleigh-Durham International Airport to Castries, use the 'Sort by' tool. You can also filter results by arrival and departure times, airline, and number of stops.

Airports in Castries

Hewanorra Airport (UVF)

  • Hewanorra Airport (UVF) to central Castries is about 1 hour and 9 minutes by car. It's approximately 56 kilometres away.

  • The last thing you want is a lengthy journey to your hotel if you're arriving on a late flight from Raleigh-Durham International Airport to Castries. Stay at one of these accommodation options near UVF instead:

George F. L. Charles Airport (SLU)

  • As soon as your flight from Raleigh-Durham International Airport to Castries has touched down, you can reach the city centre in around 6 minutes by car. Central Castries is approximately 3 kilometres from George F. L. Charles Airport (SLU).

  • If you're travelling on public transport, it'll take about 40 minutes.

  • Place the 'Do not disturb' sign on your door and rest at a hotel close to SLU. Here are a few options where you can kick back after your flight from RDU to Castries:

Best time to go to Castries

  • July is the busiest month to board a flight from Raleigh-Durham International Airport to Castries while May is the quietest. To work out the ideal time to visit Castries, consider whether you prefer a lively vibe or a quieter pace.

  • Lock in your flight from Raleigh-Durham International Airport to Castries for September to visit the city during its warmest month. Expect temperatures to range from 26ºC to 30ºC.

  • February has average temperatures of between 24ºC and 28ºC. Look for cheap flights from RDU to Castries sometime around then if you like travelling in cooler conditions.

More about Castries

  • After booking your flight from Raleigh-Durham International Airport to Castries, think about where you want to stay in this city. Make one of these options your base for exploring Castries:

  • There are so many things to see and do in this city it can be tricky to know where to begin. Derek Walcott Square, Morne Fortune and Immaculate Conception Church are highlights which should be on every Castries itinerary.

Complete your Castries trip with a car rental

  • We use the same magic that helped you find your cheap flight from Raleigh-Durham International Airport to Castries to track down incredible deals on car rentals. Search for your ride in seconds and easily compare your options. Plus we give you all the info you need to know about car rentals in Castries, from the most popular car type to the best time to book.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.